ASP.NET, C# and MessageBoxes

[Tony]

How do I get the browser to display a message box using C# in ASP.NET?

Something similar to Javascripts Alert( ) type messagebox...

[Derek Harmon]

"Tony" <To**@discussions.microsoft.com> wrote in message news:83**********************************@microsof t.com...

How do I get the browser to display a message box using C# in ASP.NET?
Something similar to Javascripts Alert( ) type messagebox...

The solution is to render some client-side script to the end user's browser,
using Page.RegisterClientScriptBlock( ) with some JavaScript, as you say,
that calls alert( ).

In the Page_PreRender event handler, for example,

// . . .
string jsAlert = "<script language=\"Javascript\"><!-- alert( \"Hello World!\"); --></script>";
Page.RegisterClientScriptBlock( "myScriptBlock", jsAlert);
// . . .
Derek Harmon

[Richard Blewett [DevelopMentor]]

ASP.NET is a server side technology and displaying a messagebox from the C# code would be worse than useless as no-one will see it *and* it would block a server side thread waiting for never-arriving user input. The way to display a message box to the client is to issue a ...

Javascript Alert into the rendered page.

If this is something you will do frequently then create a server side control that emits the necessary javascript in its CreateClientSideScriptBlock. Otherwise just emit it using Response.Write

Regards

Richard Blewett - DevelopMentor
http://staff.develop.com/richardb/weblog

nntp://news.microsoft.com/microsoft.public.dotnet.languages.csharp/<83**********************************@microsoft.co m>

How do I get the browser to display a message box using C# in ASP.NET?

Something similar to Javascripts Alert( ) type messagebox...

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[Tony]

Ok - So I created my script - but how do I call it from my C# event handler
Thanks
Tony

"Derek Harmon" wrote:

"Tony" <To**@discussions.microsoft.com> wrote in message news:83**********************************@microsof t.com...

How do I get the browser to display a message box using C# in ASP.NET?
Something similar to Javascripts Alert( ) type messagebox...

The solution is to render some client-side script to the end user's browser,
using Page.RegisterClientScriptBlock( ) with some JavaScript, as you say,
that calls alert( ).

In the Page_PreRender event handler, for example,

// . . .
string jsAlert = "<script language=\"Javascript\"><!-- alert( \"Hello World!\"); --></script>";
Page.RegisterClientScriptBlock( "myScriptBlock", jsAlert);
// . . .
Derek Harmon