Question

I want to execute following code on button click but the follwing code executes when I refresh the page as well. I don’t want that behaviour. Please help me.

string str = "Are you sure, you want to Approve this Record?";
this.ClientScript.RegisterStartupScript(typeof(Page), "Popup", "ConfirmApproval('" + str + "');", true);

Answer 1

your question in quite unclear. I assumed you use ASP.NET C# , here is the way:

public static class ClientMessageBox
{

    public static void Show(string message, Control owner)
    {
        Page page = (owner as Page) ?? owner.Page;
        if (page == null) return;

        page.ClientScript.RegisterStartupScript(owner.GetType(),
            "ShowMessage", string.Format("<script type='text/javascript'>alert('{0}')</script>",
            message));

    }

}

then, in your page (remember to reference the class above):

protected void Page_Load(object sender, EventArgs e)
{
    ClientMessageBox.Show("Hello World", this);
}

See if it helps in your case.