Dropdown is not getting selected - asp.net

Question

When I pass the string value to the dropdown, it is not getting selected. I am not sure why?
I've tried passing the value eg:ddlInitialIncidentType.Items.FindByValue("1").Selected = true; directly which works fine.
protected void btnIncTypeSave_Click(object sender, EventArgs e) {
string value;
if (rbIncTypeY.Checked == true) {
//getting the value number from the Label
value = label.Text;
ddlInitialIncidentType.ClearSelection();
//here I want to select the dropdown with the value number
ddlInitialIncidentType.Items.FindByValue(value).Selected = true;
}
}
Note: I am assigning the value to the label in the below method
function prioritySelection(sender) {
var e = document.getElementById(sender.id);
e = e.value;
if (e == 2 || e == 4 || e == 1 || e == 3)
{
$('#<%=lblInitialIncidentTypeCurrent.ClientID%>').html(e); $find("ContentPlaceHolder1_ContentPlaceHolder2_ModalPopupIncidentTypeChange").show();
}

Answer 1

protected void btnIncTypeSave_Click(object sender,EventArgs e)
{ string value; if (rbIncTypeY.Checked==true) {
value=label.Text; // did you check here that value gets value or not?} }

Answer 2

In your javascript code you have used the ID of the Label control as lblInitialIncidentTypeCurrent where as in your server side code your are using some other Label control.
Replace this
value = label.Text;
with
value = lblInitialIncidentTypeCurrent.Text;

Answer 3

There was some problem by using the Label to store the value.
But by using HiddenField it is solved.
Thanks all for the answers provided.
below is the code for it,
//aspx.cs
<asp:HiddenField ID="hdtest" runat="server" />
protected void btnIncTypeSave_Click(object sender, EventArgs e)
{
string value;
if (rbIncTypeY.Checked ==true)
{
value = hdnIncType.Value;
ddlInitialIncidentType.ClearSelection();
ddlInitialIncidentType.Items.FindByValue(value).Selected = true;
ModalPopupIncidentTypeChange.Hide();
rbIncTypeY.Checked = false;
}
}
//aspx
function prioritySelection(sender) {
var e = document.getElementById(sender.id);
e = e.value;
if (e == 2 || e == 4 || e == 1 || e == 3) {
$('#<%=hdtest.ClientID%>').val(e);
$find("ContentPlaceHolder1_ContentPlaceHolder2_ModalPopupIncidentTypeChange").show();
}
}