Question

Any clues why the button click event doesn’t insert script succesfully?

Here is the really straightforward code.

C#:

public partial class _Default : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e){
        ClientScript.RegisterStartupScript(Page.GetType(), "scriptalert", "<script type=\"text/javascript\">alert('testLOAD');</script>;", false);
        btnAdd.Click += new EventHandler(btnAdd_Clicked);
}

protected void btnAdd_Clicked(Object sender,System.EventArgs e){
    ClientScript.RegisterStartupScript(Page.GetType(), "scriptfunc", "<script type=\"text/javascript\">func();</script>;", false);
}

}

HTML:

<asp:Content ID="HeaderContent" runat="server" ContentPlaceHolderID="HeadContent">
<script type="text/javascript">
alert("testSCRIPT");

function func() {
    alert("testFUNC");
}
</script>
</asp:Content>
<asp:Content ID="BodyContent" runat="server" ContentPlaceHolderID="MainContent">
    <asp:ScriptManager ID="ToolkitScriptManager1" runat="server" />
    <div id="View" style="height: 50%; width:20%; ">
        blahblahblah
    </div>
    <div id="Addd" style="height: 50%; width:100%;">
        <asp:UpdatePanel ID="UpdateAdd" runat="server">
            <ContentTemplate>
                <asp:Button ID="btnAdd" runat="server" Text="Add" />
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>
</asp:Content>

On page load I get two alerts firing, namely “testLOAD” and “testSCRIPT”, but when I press the button nothing happens (there is supposed to be a third alert)… Checked in debugger, the event is called and runs, but when I view page source nothing was inserted.

I have a suspicion that the problem might lie elsewhere, since copy-pasting this into a new page without a master page (i.e. without ASP:Content tags) works. I haven’t had any problems with other script insertions though, so why this one?

Answer 1

I found what was wrong ^.^

There was a stray semicolon inside the script i was inserting, which made it break :/

ClientScript.RegisterStartupScript(Page.GetType(), "scriptfunc", "<script type=\"text/javascript\">func();</script>;", false);

Such a silly error caused so much frustration… sorry guys!