Rowupdating net

These event handlers simply increment two integer variables.

the good old problem of getting the data from the row that is being currently edited within a Grid View. Accessing the "Controls": This method gets you access to the control in the Grid View, which might be useful based on what you are doing.

That means if there are 100 rows to be updated the Sql Data Adapter will execute 100 separate operations against the database.

As you might have guessed this is not efficient while dealing with large number of rows.

There are multiple ways in which one can get the data from the current row that is being edited in a Grid View. Using "Extract Values From Cell": This is an easy way to get all the values from the current row.

rowupdating net-19

This article will give you an overview of how to use an ASP.Dim dt = CType(Session("dt"), Data Table) 'Update the values. Edit Index = -1 'Bind data to the Grid View control. Sql Command Dim sql As String Dim reader As System. Note A common mistake that a lot of people do is that they perform a databind each and every-time the Page_Load method is called.This will lead to problems like "Grid View does not show updated values", "Grid View looses values changed by user". In your Page_load, this is typically only inside a block where you check to make sure that Page_Load is not being called during a post-back call.NET Grid View completely, and how to use Row Editing, Row Updating, Row Deleting, Row Command, Row Data Bound, Row Canceling Edit, and Pagination in a Data Grid.Save all or press "Ctrl S" and hit "F5" to run the page, the page will look as in the following image: Click on "Edit the Grid View", it will display Textboxes in each cell as in the following image: Edit the value(s) here and click on the Update link, it will update all the data or to remove it click on the "Delete" link above the image shown.One note will be helpful for you, while describing Columns in Grid View if you are using a boundfield then create objects of the control using cells[index] in the rowupdateing event of Grid View, but if you are using controls itself like Label or textboxes etc then use Fincontrol("stringid").When you use Sql Data Adapter for performing updates, the Sql Data Adapter propagates the updates one by one.If we move our mouse on to the variables, which hold the cell values, we can see the old value instead of new updated value (Refer the debugging Screen Shot at the Top). In my VB Gridview, I had bind several column from datatable into one single column of the gridview. The following is the VB code: Protected Sub Grid View1_Row Editing(By Val sender As Object, By Val e As Grid View Edit Event Args) 'Set the edit index. Bind Data() End Sub Protected Sub Grid View1_Row Canceling Edit(By Val sender As Object, By Val e As Grid View Cancel Edit Event Args) 'Reset the edit index. Edit Index = -1 'Bind data to the Grid View control.


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