- Posted by brunofig on April 24, 2007
Can any one please tell me why????
I have a page that disables a button server-side, but on the client-side theres a script that based on some values enables the button. On the page theres also a textbox with a required field validator.
What happens is that the validators are not fired.
After some source-code review and some "reflection" on the subject, I found that the AddAttributesToRender of the button only writes the postback scripts if the button is enabled:
protected override void AddAttributesToRender(HtmlTextWriter writer){ ... bool isEnabled = base.IsEnabled; string firstScript = string.Empty; if (isEnabled) { firstScript = Util.EnsureEndWithSemiColon(this.OnClientClick); if (base.HasAttributes) { string text3 = base.Attributes["onclick"]; if (text3 != null) { firstScript = firstScript + Util.EnsureEndWithSemiColon(text3); base.Attributes.Remove("onclick"); } } if (this.Page != null) { string secondScript = this.Page.ClientScript.GetPostBackEventReference(postBackOptions, false); if (secondScript != null) { firstScript = Util.MergeScript(firstScript, secondScript); } } } ... if (this.Enabled && !isEnabled) { writer.AddAttribute(HtmlTextWriterAttribute.Disabled, "disabled"); } base.AddAttributesToRender(writer);}
So I asked myself: "Is this the same for all controls?"
It seems not. After some more "reflection", now on the TextBox control, I came to the conclusion that it's control-base, since the TextBox renders the postback script regardless of it's enable state. Some have, others don't.
When more and more web application have client-scripts changing the controls, I can' t understand this decision. Can you?
- Posted by brunofig on April 17, 2007
David Hammond as wrote an article showing the other side of XHTML. A must read for all web developers @ Beware of XHTML.
- Posted by brunofig on April 16, 2007
Lyrics
You, you keep on breakin' up
And try and walk away and
crawl right back and stay
Right back and stay
You, you keep on breakin' up
And try and walk away and
crawl right back and stay
Right back and stay
Chorus (x2)
It's the jelousy
That its got u sayin
All those things to me
so now u think im paying
See eventually we'll end up together
always and forever
You, you keep on breakin' up (x5)
And try and walk away and
crawl right back and stay
Right back and stay
It's the jelousy
That its got u sayin
All those things to me
so now u think im paying
See eventually we'll end up together
always and forever
You, you keep on breakin' up
And try and walk away and
crawl right back and stay
Right back and stay
