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Session value of Asp.net in javascript

Hi Experts

Is there any method to change the session variable value in the javascript.

For Example

<Script>

var ses=b'<%=Session("ConfirmDelete")%>';
alert('Session1  ' +ses);

<%Session("ConfirmDelete")=%> ='Hello';
var ses='<%=Session("ConfirmDelete")%>';
alert('Session2  ' +ses);

</Script>

Here in the first case ses is storing the value  "<%=Session("ConfirmDelete")%>" instead of the value of the session variable "ConfirmDelete"

Similaryly while I wish to assign value to the session it throughs error.

could someone help me with appropriate suggestion.

Thanks in advance
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Pralad
Asked:
Pralad
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1 Solution
 
thirdCommented:
"Is there any method to change the session variable value in the javascript."

No, session variable is processed server-side while javascript is client-side.
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thirdCommented:
if you want to change the value of your session variable, you can send the javascript value as a querystring or pass it on a form field and then catch it server-side. in other words, you need to postback to the server in order for the session variable changed.
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PraladAuthor Commented:
I am using javascript and server script(codebehind). I wish to capture the value of confirm message before execution of the codbehind.
I tried using hidden text box and doing this activity but the value of the hiddentext box is reset to null as its getting initialized again.

I am unable to avoid reinitialization of the variable. Its declared this way


 public class UnitList : Com.ParagonCIS.Framework.Web.Controls.BaseList
    {
....
  protected TextBox TxtIsDelete;

...

    private void linkDeleteButton_Click(object sender, EventArgs e)
        {
if TxtIsDelete.Value=="True"               - Here value is not available as control is reinitalized.
{
}
}
}
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PraladAuthor Commented:
the link buttons client event method initializes the textbox value to true if confirmation is clicked else it is initialized to false.  Declaration part of the linkDeletbutton is below


  linkDeleteButton = new System.Web.UI.WebControls.LinkButton();
  linkDeleteButton.ID = "Del" + UnitsLinkStack.ID.ToString();
  linkDeleteButton.OnClientClick = "DeleteMe(this)";

and related java script is below


function DeleteMe(me)
{
var strText=new String(me.id);
      strText=strText.substr(0,strText.lastIndexOf("_"));
      strText+="_IsDelete";
<     
if(confirm("Are you Sure?"))
{
  document.getElementById(strText).value="True";
}
else
{
   document.getElementById(strText).value="False";
}
}


Over here its value is set to true when confirmation is given as yes but once it comes to codebehind script the textbox values is lost as textbox is reinitailized.
                     
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alecpottsCommented:
Hi there,

Since your textbox value is being re-initialised and the value lost, why not put the value of your textbox into a hidden field, and then retreive the value of the hidden field in your code-behind?

If the script blocik you posted above is located in an ASPX file, then your code should work - I think the problem is more likely one of syntax than anything else. Certainly when the page is loading, you should be able to context switch and grab a value from server side. If you can't access the session object directly from your script, try putting the session value in a local variable or constant, and then accessing that...

If on the other hand the script is in a seperate JS file, then that won't work at all..! The context switching only works if you do it in the ASPX file.

Hope that helps....

Alec
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PraladAuthor Commented:
Hi Alec,

Thanks for the way to the solutions. Sorry for delared response.

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