ASP Button OnClick Confirm Based On Other Variable?

Posted on 2012-04-10
Last Modified: 2012-04-28
I use the javascript:return on typical Gridview buttons. I have not used it on a common page button. I need to open a java Confirm window only if a flag is set like so:

private void checkBox1_OnCheckChanged(object sender, EventArgs e)
        Session["isChanges"] == true;

private void btnSearch(object sender, EventArgs e)
        if(Session["isChanges"] == true)
             Session["isChanges"] = false; //reset flag
            //popup java confirm window

Question by:pointeman
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LVL 20

Accepted Solution

BuggyCoder earned 300 total points
ID: 37829198
you can register client script block from code behind like this:-

// Form the script that is to be registered at client side.
       String scriptString = "<script language=JavaScript> function DoClick() {";
       scriptString += "alert('Are you sure you want to close me??');}<";
       scriptString += "/";
       scriptString += "script>";

              this.RegisterClientScriptBlock("clientScript", scriptString);

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Author Comment

ID: 37829808
Where do I place your code in my code example?
LVL 20

Expert Comment

ID: 37829827
if(Session["isChanges"] == true)
             Session["isChanges"] = false; //reset flag
            //place the code here....

Author Comment

ID: 37832385
I cannot get your code example to work dymanicaly. I'm now using button attributes in the Page_Load().

    btnSearch.Attributes.Add("onclick", "return confirm('Are you sure you want to proceed?')");

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