ResizableControlExtender OnClientResize firing onload :-(

I have a ResizableControlExtender on my page. I set the OnClientResize to a js function with an alert. When I load the page, the alert pops. As expected, the alert pops on resize too, but I don't want the js function to be called on load. Is this a bug or expected behavior?

Thanks,

figz

Anyone?

To clarify (since it was Friday afternoon when I wrote the original post)...

Here is my ResizableControlExtender:

<ajaxToolkit:ResizableControlExtender ID="rceWrapper" runat="server" TargetControlID="panWrapper" HandleCssClass="handleWrapper"
MaximumHeight="0" MinimumWidth="960" BehaviorID="rceWrapper" OnClientResize="sayHello" />

Here is my js:

function sayHello(){alert('hello');}

The problem is when I load the page, the alert pops up. I would expect this to ONLY happen OnClientResize. So the question is, is this a bug or expected behavior? Thanks!

Hi Figz,

As far as I know, when the ResizableControlExtender control be initialized , it will call its _resizeControl(x, y, width,height) function. So that caused your problem.

To resolve this problem , my solution is to use a flag which will be set to true at pageLoad event. Just like this:

<script type="text/javascript" language="javascript">
var flag = false;
function pageLoad(){
flag = true;
}
function OnClientResizeText(sender, eventArgs) {
if(flag){
//your code;
}
}

</script>

Now , only when the flag is true , alert is allowed to be executed.

Another solution is attaching your javascript function on pageLoad event instead of defining as the ResizableControlExtender's property. Just like this.

<script type="text/javascript" language="javascript">
function pageLoad(){
$find('ResizableControlBehaviorID').add_resizing(OnClientResizeText)
}
function OnClientResizeText(sender, eventArgs) {
}
</script>

I hope this help.

Best regards,

Jonathan

Success! Thanks so much! For the record, I used the second option of attaching the js function on pageLoad instead of declaring it as a property. It worked like a charm!

return alert msg on ajax call

Hello guys

Quick question. Scenario: I have a update button that does an AJAX call and updates DB. I want to return a success/failure message such that it shows up as an alert message box on UI rather than showing a lblMessage and updating its visiblity and text property. Any suggestions?

Thanks in advance.

Hi There,

Try following:

protectedvoid Button1_Click(object sender,EventArgs e)

{

// Alert with messagebox after callback

// Your process here e.g. add/edit/delete from database and etc

// Assume your process take 5 second to complete

System.Threading.Thread.Sleep(5000);

// Build your alert script

StringBuilder sbScript =newStringBuilder();

sbScript.Append("<script language='JavaScript' type='text/javascript'>");

sbScript.Append("alert('hello world!')");

sbScript.Append("</script>" );

// Make use ScriptManager to register the script

ScriptManager.RegisterStartupScript(this,this.GetType(),"@.@.@.@.MyCallBackAlertScript", sbScript.ToString(),false);

}

Hi,

You can write a javascript function taking a string parameter on your page having an alert function call displaying the message in the parameter. I have posted a similar solution in this forum. You can have a look at that. I hope you find it useful. It is at http://forums.asp.net/t/1122462.aspx .

If you have any problem in that, let us know.

Thanks for this d4dennis..it worked..but I am not happy man yet. I have two questions..first, on postback is this still sitting on the client page. If so, is there any chance it might called again unwantedly?

Second, I was hoping to trap the Sys object of ajax. I have seen that when there is an exception thrown, it shows up as an alert message on screen. I want to somehow be able to trap that guy. Any ideas there? sorry for being so picky but that's what I want.

This works and right now to continue, I am using this. thanks again.

Hi There,

This is the solution i can think of.

tinuverma:

First, on postback is this still sitting on the client page. If so, is there any chance it might called again unwantedly?

THIS WILL NOT POP UP ON POSTBACK

tinuverma:

Second, I was hoping to trap the Sys object of ajax. I have seen that when there is an exception thrown, it shows up as an alert message on screen. I want to somehow be able to trap that guy. Any ideas there? sorry for being so picky but that's what I want.

IM NOT SURE THIS IS ACHIEVEABLE, IF SOMEONE HAVE ANY IDEA. ANYWAY, YOU CAN RAISE THIS AS ANOTHER QUESTION.