Trouble calling alert() from codebehind with masterpage and update panel

[BiffMaGriff]

Hello,

I am using VS2005 to code webapps using C#.
I am trying to call the javascript function alert() from my codebehind. I am using master pages and AJAX.

My page structure is as follows:

MasterPage.aspx
ScriptManager1
UpdatePanel1
ContentPlaceHol der1

Default.aspx (with MasterPage.aspx as its masterpage)
Button1 - OnClick="Button 1_Click"

Default.aspx.cs

//...
    protected void Button1_Click(object sender, EventArgs e)
    {
        ClientScript.RegisterStartupScript(
            typeof(string),
            "hello", "alert('hello');" +
            Page.ClientScript.GetPostBackEventReference(this, ""),
            true);
    }
 
//...
 

Well that's how I thought it should look.
But it doesn't work in IE7 unfortunately.

I know that I can get an alert with OnClientClick=" alert('hello'); " but in my real application I have much heavier logic in my Button1_Click event that cannot be performed in javascript easily.

Any ideas on how I would call alert from the code behind?

Thanks,
-Biff

[acoder]

Biff, welcome to TSDN!

You posted this in the Javascript forum, but since your problem relates to .NET, I'll pass you over to the experts in that forum who would be much better equipped to help you with your problem.

[Shashi Sadasivan]

Hi,
Im not proficient with javascript,
but what you wud want to do is to load the javascript (whatever you wrote, in the respective javascript function for button click) and register it on page load.

Cheers

[BiffMaGriff]

Hi,
Im not proficient with javascript,
but what you wud want to do is to load the javascript (whatever you wrote, in the respective javascript function for button click) and register it on page load.

Cheers

Hey Shashi,

Thanks for responding. I tried doing that and it works fine without the updatepanel. But when my button is inside the update panel I do not get the alert. :(

-Biff

[dotneto]

Hey Shashi,

Thanks for responding. I tried doing that and it works fine without the updatepanel. But when my button is inside the update panel I do not get the alert. :(

-Biff

Please try this one, instead.

ScriptManager.RegisterStartupScript(this, this.GetType(), Guid.NewGuid().ToString(), "alert('hello');" + Page.ClientScript.GetPostBackEventReference(this, "") + ";", true); 

[BiffMaGriff]

Please try this one, instead.

ScriptManager.RegisterStartupScript(this, this.GetType(), Guid.NewGuid().ToString(), "alert('hello');" + Page.ClientScript.GetPostBackEventReference(this, "") + ";", true); 

Thanks alot, works great :D

-Biff

[dotneto]

Thanks alot, works great :D

-Biff

I'm glad it helped you.

[sara4]

Finally something that works!!!!! I read so many topics on alert from code behind and this is the only one that works for me! Thank you!!!

[sara4]

Any ideas on how to do the same with Confirm? I need to catch the value user selected (for example: 'Are you sure you want to delete the record?' if yes, i go forward and delete the record.)