Working with ASP.Net DataList

1. TextBox text changed event (OnTextChanged) handling in Datalist

protected void txtField_TextChanged(object sender, EventArgs e)

{

            // Get the text box.

            TextBox txtAmount = sender as TextBox;

            // Get the DataList item.

            DataListItem DLItem = txtAmount.NamingContainer as DataListItem;

            // Get a field from DataList item/ row.

            HiddenField hfSampleID = DLItem.FindControl("hfSampleID ") as HiddenField;

}