Get TextBox value from GridView cell

All we need is an easy explanation of the problem, so here it is.

I have a GridView containing template fields. Each template field contains a TextBox. Last column of the GridView contains SELECT command field.

On click of SELECT, I want to get the value of TextBox located in a cell of the selected row.

I tried:

((TextBox)GridView1.Rows(e.Row.RowIndex).FindControl("TextBox1")).Text;

in Row_Updating event but it is not working.

I tried a similar variant of code in SelectedIndexChanged event of GridView but it gives error: Object Reference not set to an instance of an object.

How to solve :

I know you bored from this bug, So we are here to help you! Take a deep breath and look at the explanation of your problem. We have many solutions to this problem, But we recommend you to use the first method because it is tested & true method that will 100% work for you.

Method 1

You need to look inside of a Cell, not inside of a Row, try this:

((TextBox)GridView1.Rows[e.Row.RowIndex].Cells[iCellIndex].FindControl("TextBox1")).Text;

Where you need to supply iCellIndex – index of the cell that has the textbox.

Oh and use square brackets to indicate collection item.

Note: Use and implement method 1 because this method fully tested our system.
Thank you 🙂

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