Datagridview Datasource Refresh

When I make updates (Add, Delete, update) to the DataGridView, everything flow nicely to DataTable. For those unfamiliar: Storybook is a UI development environment that is able to show off UI components in…. If I had it working with 1 set of array, why can't I do it with 2? Forget about arrays for now. Now, whenever we click on the "Refresh" button, our application will execute the query and update the DataGridView control with the most recent data. When I go to add a row, I add it to a database table which then re-creates the collection based off of the database. It works great and returns my data, but when I switch to a different query that returns different columns, the DataGridView keeps the old columns from the. TimeLogs; When a new row is added to the _entities, I try to update the grid (tried using the same statement as above, setting it null, then back to _entities. If your project does not already have a data source, click Add Project Data Source and follow the steps indicated by the wizard. Can you post a sample demonstrating the issue?. the below code is retrieving the data from table and display in a gridview for particular person. C# (CSharp) System. The Editor extension adds full table editing controls to a DataTable, including creating, editing and deleting rows. Update Datagridview with current data; DataGridView - TextBoxColumn - background update to data source; ResultSet is from UPDATE. i tried this code, but the datagridview not refresh, i. Usually, you bind to a BindingSource that manages the interaction with the data source. I need to filter a column (t. I'm looking to perform some custom manipulation of the DataGridView's DataSource when the headers on the DataGridView are clicked. In these event handlers, we manipulate the List and refresh the ListBox. PARAMETER DataGridView The ComboBox control you want to add items to. How to: Bind data to the Windows Forms DataGridView control. The BindingSource can be any Windows Forms data source, which gives. So now that dtProdGrpHier (dgvProducts. NET 08 and returns the results to a DataGridView. 03/30/2017; 6 minutes to read +9; In this article. C# DataGridView Sorting and Filtering The DataGridView control is highly configurable and extensible, and it provides many properties, methods, and events to customize its appearance and behavior. Rebind DataSource to DataGridView to refresh-dataGridView1. But Datagridview shows the old value of the modified data in the related cell. The DevExpress EntityServerModeDataSource component improves performance when binding the DevExpress ASP. What you need to do is get to the dataAdaptor you connected the jqxGrid to, and give it a. Calling refresh() method will NOT reread the record from the database. Ich habe ein TabControl. Net technology is widely supported XML file format. NET or the full version you can display them using the CrystalReportViewer control. DataSource from a EntityFramework Model: gwTimeLog. changed filter settings). In this mode, only small portions of the data are loaded into the ASPxGridView on demand, and all required data processing (such as grouping and sorting) is performed on the data server. When you say:. Click the drop-down arrow for the Choose Data Source option. Second form called "DodajPracownika", where i can add my new employees to database. C# (CSharp) System. The Refresh method can be called to update the value displayed by the TextBox control. [RESOLVED] Refresh DataGridView after adding/deleting records If this is your first visit, be sure to check out the FAQ by clicking the link above. changed filter settings). C# / C Sharp Forums on Bytes. the direct answer to that is to set the DataSource to null before setting it to the actual datasource. After the transaction is finished, I want to show the current row in the DatagridView on the screen. DataGridView AddingNew - Refresh BindingSource? 24/08/2007 Leave a comment. Update SharePoint List Data in a GridView (Part 1) As a continuation from how to display SharePoint list data in a GridView , now we will explore how to update the data. This shows the Edit Columns dialog box. So I have a DataGridView with 56 rows of data in it. PARAMETER Item The object or objects you wish to load into the ComboBox's items collection. Just setting the DataSource is not enough; we need to call the DataBind method of the GridView that actually binds the data to the GridView. You may have to register before you can post: click the register link above to proceed. DataSource = null; dataGridView. It is the primary Data object for any WPF list controls (like ComboBox, ListBox, ListView etc) that allows flexibilities like Sorting, Filtering, Grouping, Current Record Management etc. Refresh This method basically refreshes the data displayed in the form controls with whatever is stored in the form cache for that particular datasource record. DataSource = _context. Refresh extracted from open source projects. dataGridView. DataGridView - SelectionChanged escapade We use the new. Tag: Windows Forms Data Controls and Databinding DataGridView Combobox Refresh/Update - VB. DataSource = Temp1BindingSource Temp1TableAdapter. You can rate examples to help us improve the quality of examples. When the UI adds an object to the data source it should be added to the DbContext; meaning if the UI needed to refresh it would result in all your data being pulled from the database again. Ich möchte dynamisch TabPages hinzufügen, die DataGridView dynamisch hinzugefügt hätten. It can define columns of particular data types and even enforce uniqueness and foreign key constraints. In this article, we will discuss some frequently asked questions and their solutions. since the data comes from linq, before binding, you can do:. Here's an at-your-fingertips reference to some of the most common and useful things you can do with it. Returns an object that specifies a data source record to which a data row currently selected in the grid corresponds. I have two form, first called 'FormAdmin" where a display my data with MongoDB in DGV. Using DataGrid control in Windows PowerShell This is an exmple written to explain how to use DataGrid control to create GUI in PowerShell scripts. This will force the datagrid to "refresh" itself. The DataGridView is used everywhere – both in ASP. In this mode, only small portions of the data are loaded into the ASPxGridView on demand, and all required data processing (such as grouping and sorting) is performed on the data server. Change the Unbound column. TimeLogs, etc), but the grid simply won't update. When binding to a data source that contains multiple lists or tables, you must set the DataMember property to a string. Tip: You can use the DataSource property to hook your DataGridView up to a database or an object collection. DataSource = null; 更新する前に。私は個人的にBindingListを使用してデータをdataGridViewにバインドすることをお勧めします。この方法では、dataSourceを変更する必要はありません-その中に含まれるデータのみを変更します。次のように使用されます:. dataGridView1. 0 Windows Forms 15 ClickOnce (3. The source code: Get all rows from table in datatable and set to the datasource:. but each time i execute it, it replicates the data with new value and appends it to the previous contents of the. Reload to refresh your session. I changes the data on the server and want the table to update to reflect. Please advise Tnx. ItemsSource property. Go to Properties and then locate Columns. DataSource == null) // data binding 아니면, Reload to refresh your session. In these event handlers, we manipulate the List and refresh the ListBox. [RESOLVED] Refresh DataGridView after adding/deleting records If this is your first visit, be sure to check out the FAQ by clicking the link above. dataBind();. net Insert a Column into DataTable Source and Refresh DataGridView Inserting rows at a particular point in a DataTable is easy, inserting columns was a bit trickier as the DataGridView didn't update or refresh its view of the DataSource;. NETのDataGridViewコントロールでハマってしまったことがあったので、まとめておきます。 DataGridViewのDataSourceにDataTableをバインドして、そのDataTableの内容をBackgroundWorkerで生成すると、アプリケーションがフリーズしてしまう現象が出ました。. Edit,Update,Delete and Insert in ListView Control. Refresh : unit -> unit Public Sub Refresh Examples. Tag: Windows Forms Data Controls and Databinding Add New row to DataTable doesn't refresh DataGridView control Windows Forms; 2. Step 2 Click on the pin button on right-up side of DataGridView and click add project DataSource. when adding a new employee dynamically in the code, do I have to call the "AddNewRow" method, then in the "InitNewRow" event setting every row cell value? or is there a way to automatically sync the gridview to display the newly added Employee record? I tried Refresh, RefreshData, and no effect. DataSource = sourceTime; Use the same to ReportViewer, and if you need to add something new to DataGridView, just Add to IList and refresh both DataGrid and ReportViewer I guess it will be easier than add each line individually. An Unbound column is one that is not directly linked to a DataSource. Salut, j'ai essayé la proposition de Graffito( que je remercie) mais le problème reste le même. The data in the gridview depends on what the user enters in the dropdown list boxes. Refresh extracted from open source projects. net apps as well as WinForms apps. RowCount is >= 10, then I want to totally clear the Grid and repeat again adding records row by row and LOOP. Click event handler: C# private void button1_Click(object sender, EventArgs e) {// The Add button was clicked. You might try setting the properties of the headers after you associate the datatable and then. It then adds the data that you entered on the dialog as a new row in the DataTable. Net; dataGridView1. so after i insert data from child form i want to refresh the datagridview in main form. How To Refresh A DataGridView Jan 31, 2012. Les données affichées sur l'écran se font par le biais d'un Dataset, si j'ai bien compris, il s'agit de la. If I had it working with 1 set of array, why can't I do it with 2? Forget about arrays for now. I have a binding source control called tktBindingsource already mapped to a table on my DB. DataSource With A BackgroundWorker Mar 9, 2011. DataSource = myBindingList. Tip: You can use the DataSource property to hook your DataGridView up to a database or an object collection. Using DataGrid control in Windows PowerShell This is an exmple written to explain how to use DataGrid control to create GUI in PowerShell scripts. Rebind DataSource to DataGridView to refresh-dataGridView1. DataGridView1. from - C#-how do I refresh DataGridView after removing rows Datasource = [whatever data source]; dgrv. This will force the datagrid to "refresh" itself. Yes, this is sometimes tricky. Then i just set via VBS the control Datasource to the RecordSet and it worked like a charm. However, if you are trying to monitor changes in the data source,. Returns an object that specifies a data source record to which a data row currently selected in the grid corresponds. The DataGridView is used everywhere - both in ASP. DataSource=Nothing DataGridView1. After the user edits a data cell on the DataGridView, I update it in the new data database. c# Auto-Refresh DataGridView in Form1 after inserting in Form2 Thanks for watching !. Les données affichées sur l'écran se font par le biais d'un Dataset, si j'ai bien compris, il s'agit de la. Actually DataGridView doesn't work directly with recordsets. The following code example creates an array and binds it to a TextBox control, and then changes one value. class Form { public BindingSource EarningDetails { set {dgEmployeeEarnings. DataSource = myBindingList. A table can be displayed from a database in a DataGridView, using the DataAdapter class and data logic. but each time i execute it, it replicates the data with new value and appends it to the previous contents of the. Use the events of the GridView: When i asign the DataSource to Grid, i Apr 04, 2007 · Download source code - 2. Tip: You can use the DataSource property to hook your DataGridView up to a database or an object collection. dataBind();. Bound mode is suitable for managing data using automatic interaction with the data store. DataSource = Temp1BindingSource Temp1TableAdapter. This demo illustrates how the ASPxGridView control works easily and quickly with a data source consisting of 300,000 records. 'Load the DataGridView with data: Me. NET using the Crystal Report Viewer After creating reports using the lite version of Crystal Reports that comes with. when adding a new employee dynamically in the code, do I have to call the "AddNewRow" method, then in the "InitNewRow" event setting every row cell value? or is there a way to automatically sync the gridview to display the newly added Employee record? I tried Refresh, RefreshData, and no effect. June 2011 There is a great problem using grouping - when you call. In this post we covered our plans to support databinding to the contents of a DbSet, including existing data that is loaded from the. DataGridView control. Create a DataTable containing my data. It is useful to refresh Grid datasource. 58765 Points. refresh datagridview after delete vb net (6) remove the item from the datasource, and bind again. To fully reset a databound grid we usually have to set the datasource to null then reset it to the datasource. NET DataTable, the implementation of the filtering functionality is trivial as you can harness the filtering feature of the underlying dataset or the BindingSource object. Click the drop-down arrow for the Choose Data Source option. However, if you are trying to monitor changes in the data source,. I have created columns in designer, with DataPropertyName settings. It includes built-in data-binding, numerous editors, master-detail support, nested tables, built-in virtualization and much more. DataSource = WorkLogDataTable 'The DataGridView will by default load all the data from the WorkLogDataTable into TextBox columns 'The VSID column should be a ComboBox, however. so after i insert data from child form i want to refresh the datagridview in main form. c# Auto-Refresh DataGridView in Form1 after inserting in Form2 Thanks for watching !. Here Mudassar Ahmed Khan has explained with an example, how to set selected value of ComboBox in DataGridView in Windows Forms (WinForms) Application using C# and VB. I tried the dataGridView. Because of the defined setting above, if there are longer or shorter names in one of the fields, the columns resize themselfs. Update SharePoint List Data in a GridView (Part 1) As a continuation from how to display SharePoint list data in a GridView , now we will explore how to update the data. TimeLogs, etc), but the grid simply won't update. First, you should use DataGridView when you need to display information that is easily broken up into columns. Now that you understand how to programmatically create columns and rows, and populate them with values, you may be wondering if you have to go to all that trouble any time you want to present content in a cell that isn't bound to data. DataSource, I get 4 columns. Actually DataGridView doesn't work directly with recordsets. در این مقاله آموزش می دهیم که چگونه یک برنامه کاربردی تک صفحه. Change the Unbound column. Answered Active Solved. DataGridView1. NETのDataGridViewコントロールでハマってしまったことがあったので、まとめておきます。 DataGridViewのDataSourceにDataTableをバインドして、そのDataTableの内容をBackgroundWorkerで生成すると、アプリケーションがフリーズしてしまう現象が出ました。. Synchronize changes from datasource to DataGridView If this is your first visit, be sure to check out the FAQ by clicking the link above. Click on the "Add" button. { // Bind your datagridview with the datasource }. hi all i have a grid view which get its values from some dropdownlists which are at the same page the dropdownlists insert thier values to the DB then i retrieve them to the grid view i made a butt. Join a community of over 2. How do I refresh this thing? How do I get rid of the extra columns from the datasource? I appreciate any insight. A DataView provides a means to filter and sort data within a DataTable. These questions have been collected from a variety of sources including some newsgroups, MSDN site and. It gives you number of properties, methods and events to customize its appearance and behavior. These are the top rated real world C# (CSharp) examples of System. I am not seeing how the DataGridView knows what data to which to bind. Using Entity Framework and DataGridView to add, delete, and edit rows of a table in SQL Server Express database. Yesterday I updated all my dependencies with npm update and npm update -g. Edit Cell in DataGridView (VB. Then ensure that the event handler is associated with the DataSourceChanged event. ColumnHeaderContentTemplate bindable property. There are three properties available for the users to bind ListView to data, the DataSource, ShowMember, and ValueMember. It is the primary Data object for any WPF list controls (like ComboBox, ListBox, ListView etc) that allows flexibilities like Sorting, Filtering, Grouping, Current Record Management etc. RefreshEdit() いずれも動作しません. If your project does not already have a data source, click Add Project Data Source and follow the steps indicated by the wizard. NET になって DataGridView への DataSource プロパティへのバインドをすると早くなる、ってのが定番なんですが(セルへちまちま貼り付けるよりも早くなります…が、測定はしてないので、そのうちに)、なぜか、DataSource プロパティへのバインドをしている. DataSource = DataSource; Try this and let me know. Refresh extracted from open source projects. The VIBlend brand means top quality, great relibility and excellent performance. net,winforms,datagridview. I have been trying various incarantions of these suggestions though I haven't gone as far as trying to subclass the control. Over the last few weeks I've been writing a series of blog posts that cover LINQ to SQL. DataGridView1. The program converts the DataSource into a DataTable. DataGridView The DataGridView shows a database table in rows and columns, similar to a spreadsheet and similar to the rows and columns that Microsoft Access uses. DataGridView BindingSource List オブジェクト バインド. It can be either DataTable, DataView. -- With Regards Abhijeet Kumar Singh. changed filter settings). I guess we need more information. In these event handlers, we manipulate the List and refresh the ListBox. DataGridView. It is a technique used to. and pull-to-refresh (iOS only) indicators. Using a BindingSource to bind a list to a DataGridView control. If I assign the DataTable to DataGridView. How DataGridView refresh and update the data source class property run time; datagridview data in vs 2005; When does a binding update its data source. void DemonstrateRefresh() { // Create an array with ten elements and bind to a TextBox. First of all which is the best approach, create an ArrayList and use it as a datasource for my dgv or just update the dgv directly. Then the datasource is set to null and a new datasource is set. Update SharePoint List Data in a GridView (Part 1) As a continuation from how to display SharePoint list data in a GridView , now we will explore how to update the data. How can i refresh the table in Class ? Satya over 9 years ago Generally we do refresh taking DatasourceName_ds. Similarly a Dataset has no knowledge of the Data Sourcewhere the data coming from. Setting the DataSource property will implicitly refresh the display. We will start with the basics in Part 1, and gradually make the examples more complex in Part 2 and Part 3. You can rate examples to help us improve the quality of examples. Exactly what another user has noted here a long time ago (was marked as bug):. This includes numbers, names, IDs and other attributes stored in a database (numbers and strings). A DataTable is an in-memory representation of a relational database table. You don't need to Refresh anything if you are setting the grid's DataSource. Dismiss Join GitHub today. Tip: You can use the DataSource property to hook your DataGridView up to a database or an object collection. Basic Data Binding with the DataGridView. )Now, in Design-Mode,. Rebind DataSource to DataGridView to refresh-dataGridView1. Query Notifications In C# Windows Application - Datagridview Refresh F; How To Update/refresh A DataGridView In A Class By A Different Class; Newly Added Data Not Being Displayed In DataGridView; Count The Total No Of Rows In A DataGridView; A Problem With Datagridview - I Can't Get Datain My Datagridview From DB; Insert, Update And Delete. However, when I add data (programatically) to the DataTable, the DataGridView. When I go to add a row, I add it to a database table which then re-creates the collection based off of the database. DataSource= value;} } }. Refresh DataGridView after insert using C# and VB. Here Mudassar Ahmed Khan has explained with an example, how to set selected value of ComboBox in DataGridView in Windows Forms (WinForms) Application using C# and VB. DataSource from a EntityFramework Model: gwTimeLog. Refresh datasource. Now, I want to show "Month" and "Item" instead of "MonthID" and "ItemID" in DataGridView. Handle, WM_SETREDRAW, true, 0); dataGridView1. DataSource= value;} } }. : DataBinding DataGrid « GUI Windows Forms « C# / CSharp Tutorial. Reload to refresh your session. You should set the DataSource and call DataBind. New here? Start with our free trials. Bind data source to ComboBox. Now that you understand how to programmatically create columns and rows, and populate them with values, you may be wondering if you have to go to all that trouble any time you want to present content in a cell that isn't bound to data. NET になって DataGridView への DataSource プロパティへのバインドをすると早くなる、ってのが定番なんですが(セルへちまちま貼り付けるよりも早くなります…が、測定はしてないので、そのうちに)、なぜか、DataSource プロパティへのバインドをしている. I've got a VB2008 application that can potentially generate a table with up to 540 columns. After entering data into all the textbox, and after clicking the submit button, it won't immediately show in the datagridview, I need to reopen the form in order to see the new inserted row. TimeLogs; When a new row is added to the _entities, I try to update the grid (tried using the same statement as above, setting it null, then back to _entities. NET classes. net apps as well as WinForms apps. Refresh DataGridView after insert using C# and VB. 03/30/2017; 6 minutes to read +9; In this article. I believe we need more info to understand better. All goes well and three DataGridView columns are displayed for the first time. Refresh This method basically refreshes the data displayed in the form controls with whatever is stored in the form cache for that particular datasource record. Click the smart tag glyph on the upper-right corner of the xref:System. Slow DataGridView rendering can be fixed using so called double buffering. You can easily update a database from a DataGridView. c# - net - datagridview datasource refresh. I have two form, first called 'FormAdmin" where a display my data with MongoDB in DGV. Now, I want to show "Month" and "Item" instead of "MonthID" and "ItemID" in DataGridView. 03/30/2017; 6 minutes to read +9; In this article. DataSource= value;} } }. Rebind DataSource to DataGridView to refresh-dataGridView1. Recommend:c# - refresh datagridview from another form. How to satisfy the requirements? That's quite simple actually mate :) Follow these steps: Bind the DataGridView to the datasource. public: void Refresh(); public void Refresh (); member this. entity framework - How to refresh the DataSource on a WinForms DataGridView? 2020腾讯云共同战"疫",助力复工(优惠前所未有! 4核8G,5M带宽 1684元/3年),. For the purposes of this article, the columns are automatically generated based on the fields selected for the data source. Bound mode is suitable for managing data using automatic interaction with the data store. NET 08 and returns the results to a DataGridView. private void DataGridView1_DataSourceChanged(Object sender, EventArgs e) { MessageBox. DataSource) has new, filtered, rows in it; I want to refresh my DataGridView. datagridview refresh @ runtime c#; datagridview refresh; DataGridView refresh causes "Not Responding" application (but onlywhen not in Visual Studio) DataGridView - how to toggle multiline on a row? DataGridView. The table is then used as the DataSource for a DataGridView. This demo illustrates how the ASPxGridView control works easily and quickly with a data source consisting of 300,000 records. The DataGridView automatically updates its display to show the new data. You can remove the 1=1 hack by utilizing a collection of some sort, such as a List, and String. refresh dim str as string = "select * from database" using cmd As New OleDb. When I go to add a row, I add it to a database table which then re-creates the collection based off of the database. The "empcur" string passed to the Dataset constructor seems pulled out of a hat - simply any old string is used, apparently. Drag and Drop one DataGridView control and one Button control on the form. How to open a new form in a form but is is not possible to open a windows form in to the same main form or is there a more simple way to do this Tag: Windows Forms Data Controls and Databinding DataGridView slow refresh Windows Forms; 6. from - C#-how do I refresh DataGridView after removing rows Datasource = [whatever data source]; dgrv. dataGridView1. but when i wanna check the next person record if he dosen't have record so the previous data still will not erased. The alternative method is to update DataTable row, which will reflect datagridview and refresh the value in it, since it is binded to DataTable. Hi, I have been encountering a refresh problem with DataGridView, which is bound to a DataTable. 给dataGridView添加一个刷新按钮 2. But when i tried to refresh the Data Source or Table Intellisense didn't come. I'll cover the following topics in the code samples below: GetData, Tables, Block, DataSource, Refresh, Assign, Mso, and Datagridview. I'll cover the following topics in the code samples below: c WinForm Auto RefreshElapsedEventHandler, ElapsedEventArgs, ConnectionState, BindingList, and ToDateTime. Les données affichées sur l'écran se font par le biais d'un Dataset, si j'ai bien compris, il s'agit de la. Best way to refresh DataGridView when you update the base data source (5). this gets assigned directly as the datagridview's datasource. 2 column from (2) and 2 columns from (3). Synchronize changes from datasource to DataGridView If this is your first visit, be sure to check out the FAQ by clicking the link above. In Form2 I add or modify a row in that table. 6m developers to have your questions answered on Update grid when datasource changed of UI for WinForms GridView. DataGridView refresh problem (DataTable). but when i wanna check the next person record if he dosen't have record so the previous data still will not erased. Column 1 Column 2 Column 3. i tried this code, but the datagridview not refresh, i. これが「Refreshメソッドを使う」という意味であれば、違います。 なぜなら、親画面は子画面で新しくしたデータを持っていないからです。 Refreshメソッドは単に再描画をするだけですので、新しいデータを親画面で表示してはくれません。. And once I set back Datasource to BindingSource, these columns come back, but with column names from DB. Solution: 2st - see EVENT - DataGridView. DataGridView is a data-aware control that presents data in a tabular format. This caused the cell to refresh correctly. TimeLogs; When a new row is added to the _entities, I try to update the grid (tried using the same statement as above, setting it null, then back to _entities. I've created an application that runs queries against a SQL server (via Data Adaptors) in VB. The DevExpress EntityServerModeDataSource component improves performance when binding the DevExpress ASP. But Datagridview shows the old value of the modified data in the related cell. The rows are created from the table rows. DataGridView Sorting/Filtering in VB. You may have to register before you can post: click the register link above to proceed. datagridview refresh; DataGridView refresh causes "Not Responding" application (but onlywhen not in Visual Studio) DataGridView - how to toggle multiline on a row? DataGridView. Refresh() method of ListCollectionView, to update layout, it redraws all the datagrid and close all your groups. DataSource = ds. NET Grid View (ASPxGridView) to a large data set. Please advise Tnx. I have a comboBox where users can select a different set of data and the data in the datagridview refreshes using the correct stored procedure when the comboBox selected index is changed. The DataGridView does not display the cell data that the user has updated. The following C# source code shows , how to load data in a DataGridView from an XML file. 我们在编程过程中,会涉及到表格数据的显示,存储等,就可能涉及到DataGridView,DataSource, DataTable等概念。下面我就我自己模糊的一些知识点串讲以下:1)首先我要讲的是一些 博文 来自: weixin_30932215的博客. The DataGridView control supports the standard Windows Forms data binding model, so it can bind to a variety of data sources. DataSource = Query. Because of the defined setting above, if there are longer or shorter names in one of the fields, the columns resize themselfs. Using Entity Framework and DataGridView to add, delete, and edit rows of a table in SQL Server Express database. How to: Bind data to the Windows Forms DataGridView control. [RESOLVED] Don't fire SelectionChanged event when setting datasource. DataGridView1. When the UI adds an object to the data source it should be added to the DbContext; meaning if the UI needed to refresh it would result in all your data being pulled from the database again. When I select any row, then scroll it off the screen and then back on again, the original data from the selected row becomes merged with the data of another row - seems to depend on whether I scroll up/down or use scrollbar or mouse wheel (I suspect pgUp/Down and arrow keys will have a similar effect also). Super Data Grid WinForms Control. DataSource = this. String cell. Refresh() The datagrid view control is not showing the updated contents. DataSource = _entities.