textbox values clears

[member27]

Hi all, Iam using a hidden textbox in my form...when i update the value of the Hidden textbox in server side - when i check a checkbox , and i take the value of textbox in client side in a button click . The value of the textbox reamins empty qwhen i take the value in client side client side code:: var str= document.getElementById("Hdncode").value; when i update the value of textbox in clent side it takes but when i update thro server side it not updating ... in myForm i didnt wrote any code to clear the textbox value any wer then y it happens any reason .. can any one help me

[Jagz W]

post your server side code for better understanding

One person's data is another person's program. --J.Walia

[member27]

This is the server side code for check changed Private Sub chkselallitems_CheckedChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles chkselallitems.CheckedChanged dim str as string For i = 0 To grdexam.Rows.Count - 1 str+= grdexam.Rows(i).Cells(1).Value & "," next hdncode.value=str End Sub when i updatethe hdncode.value in server side it is not reflecting if i take in client side can any one tell the reason