Question

109

Setting value for javascript variable from code behind (C#)

rated 0 times [ 113] [ 4] / answers: 1 / hits: 34232 / 11 Years ago, fri, may 10, 2013, 12:00:00

I understand the difference between Client-side and Server-side scripting. I have a javascript function and variable in my MasterPage:

<script language=JavaScript type=text/javascript>

    var needToConfirm = false;

          window.onbeforeunload = confirmExit;

          function confirmExit()

          {

            if (needToConfirm)

            {

              needToConfirm = false;

              return Currently in edit mode. If you leave the page now then you will lose unsaved changes.

            }

          }

</script>

Given the fact that on my ASP.NET (Client-side) I can change the value of my needToConfirm variable to true onClientClick but by default it is false. Here's an example.

 <asp:Button ID=btnEdit runat=server Text=  Edit   onclick=btnEdit_Click OnClientClick=needToConfirm = true; />

Now the question here is when on the C# (Server-side) I have to set the needToConfirm to true under an if-statement but not necessarily on Page_Load:

private void SetDefault()



    if (Session[def.ID_CUST] != null)

    {

          //I want to change the variable value here

    }

}

Thanks.

UPDATE

I'm using .NET 2.0 Classic and WebForms

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jaylanw

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2 Years ago

answered 11 Years ago marisela · Accepted Answer

in code behind:

ScriptManager.RegisterStartupScript(this, this.GetType(), , urFunction('urValHere');, true);

on client-side:

function urFunction(urParam) {

        //do what u want here

        //use urParam

    }