ASP.NET dialog box

[RobertTheProgrammer]

Forgive me for a newbie question...

I'm using ASP.NET and C# for the code behind.

I've got a dialog box opening on my page with javascript and it is attached to a button on the page during the Page_Load event with:

            MyButton.Attributes.Add("onclick", "var strReturn; strReturn=window.showModalDialog('ChildWindow.aspx',null,'status:no;dialogHeight:220px;dialogHide:true;help:no;scroll:no');if (strReturn != null) document.getElementById('ResponseValue').value=strReturn;");
 

Works beautifully when the user clicks the button. My question is: how can I get this dialog to open from the code? In other words, in my code behind I'm validating what the user has entered and if certain conditions aren't met, I want to prompt the user for input by opening this dialog box automatically without having them click the button.

How do I do this in the code behind?

Thanks.

Robert

[DrBunchman]

Hi Robert,

You can use the following to fire a message box from your code:

 String sMessage = "Hello World!"; 
String  myscript  = "alert('" & sMessage & "');";
Page.ClientScript.RegisterStartupScript(Me.GetType(), "myscript", myscript, True)
 

I've cribbed this for C# from my own VB so it may not by syntactically perfect but hopefully you can get the idea.

Hope this helps,

Dr B

[r035198x]

...
I've cribbed this for C# from my own VB so it may not by syntactically perfect but hopefully you can get the idea.

Hope this helps,

Dr B

Better make the last line

 Page.ClientScript.RegisterStartupScript(Me.GetType(), "myscript", myscript, true);

[RobertTheProgrammer]

Thanks. Works just fine now.

On minor fix, though, for C#. The "Me.GetType()" was changed to "GetType()".

I very much appreciate your help.

Robert

[r035198x]

Thanks. Works just fine now.

On minor fix, though, for C#. The "Me.GetType()" was changed to "GetType()".

I very much appreciate your help.

Robert

Ah, I missed that as well. So much for trying to correct others.

[DrBunchman]

Thank you both for your corrections to my (obviously rather poor!) attempt to convert VB to C#.

Damn those semi-colons!

Dr B