Question

I wanna to store some hidden data in my text box . Is there any property like CommandArgument for the buttons to store my data? The text boxes are in the template field in a grid view and i get those data in text changed event of every one.

EDIT:

TabIndex='<%#((GridViewRow)Container).RowIndex%>'

protected void txt_evaluateWeights_TextChanged(object sender, EventArgs e)
        {
            calc();
           int index = ((RadTextBox)sender).TabIndex;
           ((RadTextBox)gv_Evaluation.Rows[index + 1].Cells[3].FindControl("txt_evaluateWeights")).Focus();
        }

I wanna to replace the TabIndex with a convenient property to hold my index.

Answer 1

I’d suggest that you use the HTML5 “data-” attribute. Then you can easily extract it using jquery.

<textarea name="MyTextArea" data-arbitraryName="HIDDEN TEXT" cols="40" rows="5">
    Enter your comments here...
</textarea>

<input type="text" name="MyInput" data-arbitraryName="HIDDEN VALUE" />

Then you’ll extract it like so

$("textarea").data("arbitraryName") === "HIDDEN TEXT";
$("input").data("arbitraryName") === "HIDDEN VALUE";

So now with ASP.NET WebForm controls, you can add the arbirtaryName to your RadTextBox in your codebehind

var foo = "HIDDEN TEXT";
RadTextBox1.Attributes.Add("arbirtaryName", foo);

Here’s some further reading
http://ejohn.org/blog/html-5-data-attributes/
http://api.jquery.com/data/