Onrowupdating in gridview in asp net

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Text = my Text1 Dim update Description As String new Brief Descrip = row. If that is "brief_Descrip", you can use the Extract Data From Cell method of the Data Control Field on the Cell to get the value. Add("prev_Lang String", update String) item Data Source. Add("brief_Descrip", update Description) item Data Source. Find Control("brief_Descrip"), Text Box) I can see the sort Expression in field1Field, line 2 of code above, Values returns Nothing though. Description: An unhandled exception occurred during the execution of the current web request. I understood about the lack of an update command and the labels to display the data, thanks. Cells(6), Data Control Field Cell) Dim field1Field As Bound Field = Direct Cast(field1Cell.

If that is a Bound Field, cast to that and you will have access to the Data Field property. Update ' Notify the user that the update was successful. Extract Values From Cell(values, field1Cell, Data Control Row State. Text = Direct Cast(values("Field1"), [String]) Dim field2Text Box As Text Box = Direct Cast(row. When I wrote that demo, I also wanted to show that columns could be selected by examining Data Field. So i think I am giong to change back to boundfields since it did not error, and try to figure out why I was not getting the value that had been entered. Row Index) Dim field1Cell As Data Control Field Cell = Direct Cast(row.

I have loads of codes here, because ive tried every way possible. Public Sub GV_Student Record_Row Editing(By Val sender As Object, By Val e As System.

Then i want the user to be able to edit any row in the gridview, so i did this: Now I know i hav to use Row Editing event, Row Updating Event, Row Canceling Edit event to make everything work. I hoping someone could point me in the right direction on how to use these 3 events, what syntax/coding should i use to handle these 3 events.

(It's in the Labels below the Grid View just to show the data was received properly.) The important thing is to extract the values from the Cells in a way that fits the structure of each Cell.

For the same reason, I don't do an actual update, and the new data doesn't show up in the Grid View.

Grid View Update Event Args) Handles GV_Student Record.

I really had hopes that it was going to find the value in the textbox, but it just isn't popuplating the Text property. Well, I'm not sure what I did but I got it working. A recurision technique to search all page controls was the final answer. Insert the below code above the VB displayed up above that calls the recursive function.

Data Bind() End Sub Protected Sub GV_Student Record_Row Updating(By Val sender As Object, By Val e As System.

Row Updating Dim conn String As String = Configuration Manager. Connection String Dim e Date, e Status As String Dim str Table Name As String = LBSubject Code.

This can be beneficial to other community members reading the thread. Extract Values From Cell(values, field1Cell, Data Control Row State.

It will be in a Dictionary, but it will be the only value in that. Please remember to click “Mark as Answer” on the post that helps you. Add("lang_String", update String) item Data Source. When I changed the Cell index in line one of the code above I did return an existing value from the Gridview. Please review the stack trace for more information about the error and where it originated in the code. Invalid Cast Exception: Unable to cast object of type 'System. Also, I do not need to extract any other values than just this one cell, I have everything else already assigned in other variables. Containing Field, Bound Field) Dim values As New Ordered Dictionary() field1Field.

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