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Open() Dim cmd As New Sql Command("Select * from stores", con) Dim da As New Sql Data Adapter(cmd) Dim ds As New Data Set() da. Page Private con As New Sql Connection("Data Source=.; Initial Catalog=pubs; User ID=sa; Password=*****") Protected Sub Page_Load(By Val sender As Object, By Val e As System. Load If Not Is Post Back Then load Stores() End If End Sub Protected Sub load Stores() con. What happens with this is that the source is being created every time the user submits the page.This means that when the user does an update, the data from that update is lost. Data Bind() Dim columncount As Integer = grid View. " End If End Sub Protected Sub grid View_Row Editing(By Val sender As Object, By Val e As Grid View Edit Event Args) grid View. New Edit Index load Stores() End Sub Protected Sub grid View_Row Updating(By Val sender As Object, By Val e As Grid View Update Event Args) Dim stor_id As String = grid View. To String() Dim stor_name As Text Box = Direct Cast(grid View. Find Control("txtname"), Text Box) Dim stor_address As Text Box = Direct Cast(grid View.
Thanks to all you for answer, but the examples posted aren't my case.Open() Dim cmd As New Sql Command("Select * from stores", con) Dim da As New Sql Data Adapter(cmd) Dim ds As New Data Set() da.If it is expensive, this could easily sum up to a large cost.This post takes the same scenario and implementing the same concept using XML HTTP AJAX implementation. 1 : 0; var is_ie5 = (Version.index Of("MSIE 5.5") ! 1 : 0; var xml Http; /* This function requests the HTTPRequest, will be used to render the Dynamic content html markup * and it will call Handle Response to handle the response */ function Get Child Grid(Id) /* This function is used to handler the http response */ function Handle Response(Id) /* function to create Ajax object */ function create Ajax Object() /* Get the XML Http Object */ function Get Xml Http Object(handler) function xml Http_Get(xmlhttp, url) download the working example of the source code in C# here and in VB here [Update ] The above implementation shows, when clicking the expand icon in the row - it calls the server to get the Grid View script and show in the page.
The use case of the implementation follows: To know how XML HTTP AJAX works and how to implement the same in ASP. So to test the code, please make sure you have Northwind database and update the server in connection string on web.config. Once the Grid View shown, it never call again till the page refresh happening and it will just hide and show the Grid View. NET with AJAX, JQuery implementation - Part 1 Hierarchical Grid View in ASP.
NET page that will handle different Grid View events to provide complete editing functionality.