AJAX :: Disabling Checkboxes In Popupextender Control?
Mar 24, 2011
I have a popup extender that shows when an edit button in a grid is clicked. I am disabling the checkbox and submit button when a particular row is clicked with sone validation. When I close the popup and show again by pressing button on another row the controls are still disabled. Why are these controls properties set permanently on entering the if condition ?
button click event for button on the panel that pops up on a button press in grid
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Feb 10, 2011
I am embedding a popup extender inside a tab...simple enough - for some reason the content is visible when the page loads - it can be dismissed by selecting the button and then dismissing the popup. Everything works in compatability mode.
I can't tag the panel as visible=false as it is no longer rendered at all.
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Dec 15, 2010
I am fairly new to web development & stuck up using the ajax:popupExtender inside a gridview/Itemtemplate. So, would like to get help from experts in the forum
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Currently I m developing a web page which holds a grivview. As one of the column needs a multiple column dropdown with soring facility, I am using ajax:popupExtender to achive that. Basically in the column i have a Panel1(label & image which mocks up has a dropdown), ajax:popupExtender, Panel1(gridview to have mutiple column). When user clicks on it the ajax:popupExtender is called & the targetpopupid which is a panel2 with gridview is called.
Here when user clicks on thePanel1, I am able to display Panel2 using ajax:popupExtender. Also, when user selects some row, I am able to close/hide the ajax:popupExtender in the code behind using cancel(). (this is done in selectItemIndexchange of panel2 grid view).
But my problem comes when user doesn't select any row & clicks back on the panel1, the ajax:popupExtender will remain open. but it should have been closed as i am trying to mock up dropdown dunctionality. how can I hide/close ajax:popupExtender when user clicks on panel1 2nd time.
Following are the different approaches I tried but nothing worked out.
1. wrote JS, & tried to add attributes of the Panel1's onclick event.
Failed: Error - Object is undefined. even though i passed a valid obj from code behind.
<script language="javascript">
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Feb 19, 2010
I have a lot of data to display in a GridView. Because there's so much information per row, I'd like to be able to display additional information when a user clicks on the row, so I thought a PopupExtender from the AJAX Toolkit would be perfect.
Ideally, I want the popup to display whenever any of the controls within the row are selected. I've been able to successfully attach the PopupExtender to a single control within the row, but I can't get the pop-up to attach to the row itself.
I would have thought that setting the PopupExtender's TargetControlId to the Row's ClientID within the RowDataBound event would work, but when I do this I get a runtime error:
TargetControlID of 'popupExtId' is not valid. A control with ID 'gvList_ctl02' could not be found.
I noticed that the GridViewRow is rendered, the tr element does not include an id, so I also tried extending the GridView control to override the CreateRow method to render the id - using this method I was able to render the row's ID (e.g. gvList_ctl02), but the same runtime error was thrown when I added the PopupExtender back into the code.
I also tried binding the showPopup() javascript command to the row's onclick event to get the popup to display manually; whilst the click event is registered OK and is definitely triggered, the popup is still not shown.
Does anyone have any idea how to / if you can bind a PopupExtender to a GridViewRow?
My row bound code is as follows:
protected void gvList_RowDataBound(object sender, GridViewRowEventArgs e)
{
if (e.Row.RowType == DataControlRowType.DataRow)
{
// Bind the popup extender's target ID to the row ID
// This will cause a runtime error
PopupControlExtender pop = e.Row.FindControl("popupExtId") as PopupControlExtender;
pop.TargetControlID = e.Row.ClientID;
// Also bind the client side click handler to try to get the popup to show
// The alert is triggered and no javascript error is generated, but the popup does not display
e.Row.Attributes.Add("onclick", "alert('Row Clicked'); $find('" + pop.BehaviorID + "').showPopup();");
}
}
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Dec 28, 2010
how to setting the targetcontrolId and showing the popupextender in javascript by using popupextender behaviourId or its serverId?
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May 19, 2010
I have a page with one button. When the button is clicked, a ModalPopupExtender is open, and data is populated from database and displayed in the popup box. The data retrieved is bound to dynamically generated CheckBoxLists, one CheckBoxList for each category (there maybe 3, maybe 5 CheckBoxLists, depending on the categories). I need take down whatever the user checked on those CheckBoxLists from the popup window. But I got no way to find those checked items. Any button in the popup window dose only one thing: closes the window. No matter what I code under this button, is not executed.
<asp:UpdatePanel ID="UpdatePanel1" runat="server">
<ContentTemplate>
<asp:Panel ID="popupPanel" runat="server" CssClass="register" >
<br />
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Dec 15, 2010
I have an asp:Table which resides inside an asp:updatepanel. Most (but not all) asp:TableCell's are filled with buttons which all should be opening the same popupwindow though with different content (depending on the button that was clicked), and the popup itself has its own updatepanels, as the purpose of the popup-window is being an interactive form.My question is: (how) can I use a popupextender for more than 1 button, so that it works with async postbacks? setting the TargetControlID to the id of the button that was clicked will only happen -indeed-after clicking the button so a full page postback is already happening when setting it.Or should I create one popupextender for each button in my table which all point to the same asp:panel? the buttons are created runtime, then where do I go from there?Or am I still on the wrong track here?
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Mar 8, 2010
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Apr 1, 2010
I thought disabling ViewState for a server control would cause this control not to keep its state after a postback. I thought the same would happen if I disable ViewState for the whole page.
However, I tried to create an example to show this to a colleague and was puzzled when a textbox on a page would keep is state (in this case its Text property) after one or more postbacks, even when ViewState is disabled everywhere (both at Page level and Server Control level). Please see the code below:
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Photon (Springfield, Missouri)
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