AJAX :: Modalpopupextender Control Does Not Exist?
Mar 1, 2011
I've been running through tutorials and can not get my modal popup box to work. Almost all examples show to call the modalpopupextender by the control id in the code behind as say:
ModalPopupExtender1.Show();
...yet can not compile due to ModalPopupExtender1 does not exist in current context?
I am developing a web portal under ASP.Net 4 and using Ajax and masterpage. I created a user control to select a data from a gridview and put it in a textbox, for that use the ModalPopupExtender control. Everything works fine as can be seen in this photo:
But after much control to use the ModalPopupExtender starts to appear behind the form and to return to appear before touching refresh the page or press the button repeatedly calling him. In the next picture you can see what it looks behind the popup form:
I have a simple question but I could not find the answer after hours of searching on the internet.How do I refer OkControlID and CancelControlID that is inside of my user control?For example, my user control is and input form with OK and Cancel buttons. How do I refer to it in the ModalPopupExtender?Here's my code:
I need to integrate bucks buttons modalpopuextender ajax controls, anyone know where i can locate this information , there are four, the former is entering the second search, the third change and remove the four, each with a modalpopup and when there will deve block is the parent page,
ctually the problem is that i have a login control in modalpopup. It works fine on entering correct user name and password. but the problem is that if the user name or password is wrong then it disappears. What i want at this point is that it should redirect to my custom error page on entering wrong credentials. have spend one complete week to solve this issue but is unable to solve it.
I have a web form with a modalpopupextender and a listView control that opens for editing and adding records. One of the columns on the listview is a linkbutton that makes a serve side call to show the modaldialpopupextender. At first, when clicking on the linkbutton in the listview the modalpopup displays over the listview, the page fades (via a CSS class) and it works great. When I open and close the listview for editing or change pages on the listview, and then try to show the modalpopup via the linkbutton, the modalpopup displays under the listview and the fading does not work properly. I am not too sure if this is a postback/javascript issue or maybe CSS?
I have created ObjectDataSource control which is bind with the GridView control (In few cases with DetailsView control) as well as I have created new column "Edit" in gridviw with Linkbutton.
Now whenever user clicks on linkbutton it shows ModalPopupExtender with edit fields for that particular selected gridview row.
My problem is that I want to show only few columns in gridview (eg- EmpID, EmpName) and want to edit all columns in modalpopupextender (eg- EmpName, City, State, Pincode etc).
So how can I show all the fields in modalpopupextender to edit becouse when I am reading fields from GridViewRow not able to get the hidden fields which is not included as columns in gridview?
Somehow can I read fields values from ObjectDataSource?
I have a modalpopupextender inside a custom user control and when the user clicks on a imagebutton in the custom user control, this modalpopup has to be displayed to the user for inputs. The problem that I am facing is that nothhing is getting displyed even after clicking the image button.
i am using master pages and this custom user control is being added dynamically to one of the child pages. I have added the scriptmanager as a part of the child page rather than as a part of the user control because there are multiple custom user controls present in this page.
Lemme go to the code:
This is the snippet present in the custom user control:
How do i post html markup? instead of it showing as the controls that dont show on MY PAGE! I took the code directly from the sample website, i am not useing a master page so made a few changes. I cant figure what i missed i am guessing something to do with the commonpage that the page inherits from in the sample site or the fact that it had a masterpage and i didnt clean it up enough
I work with ModalPopupExtender (ajax control toolkit) asp.net
that is to say that a popup appears which contain one panel with 2 DropDownList (DropDownList1, DropDownList2)price starting from DropDownList1 the DropDownList filled due to the code behind.
My problem is that when I click on the DropDownList1 ModalPopupExtender that contain the Panel is gone because of AutoPostBack = "True" of DropDownList1.
I need to select my field data using a 3 step drownlist process (shown in the following screenshot):
But I can't find a way to get the Model SelectedValue and SelectedItem when Select is clicked. After it's selected it has to be filled in the Autofield on the background, and when close is pressed the original value has to be reloaded.
I would really appreciate if someone can find out what's wrong with this code.
Here is my question. I have textboxes in a modal popup extender (City, state, zip) and there is an image button search for searching the address from the database. All this functionality is within a control (.ascx file). This control is added to the page where it needs to be displayed and is being displayed when a user click the Address button (the code for it is not shown here). The method ShowAddressSearch() in the control is being called from the page and it displays the popup.
When the user enters any of the 3 values and hits search a server event is fired up and the result should be displayed in a grid. What is happening is, when the user hits the search button the server call is made and the data fetched from the db but the modal popup closes itself here is the code for this. I would really appreciate if someone can find out where and how popup is getting closed.
Iam facing a problem in ModalPopupExtender, i have made a usercontrol to show a popup frame and made popheader for dragging the header. but iam unable to find the panel id for PopupDragHandleControlID. can anyone tell me how to do. user control
I have a modal popup extender with one control (ascx) this control has a label that on onclic method call other popup extender.
It's has other ascx, it's has a button for a search. When I do Click in this button in first time, the event click not fired and there are a javascript error that say "this._activeDRagVisual is null reference".
In the other hand, If a use de second popup inside an asp page the event and control work correctly. The problem is with the popup inside popup.
I have a gridview inside a ModalPopUpExtender, the grid view have the button add delete and edit when i clic one of the button of the gridview the popup is closed. I wont to close the popup when the close button is clicked.This is the asp.net part:
I try I cannot seem to find a satisfactory solution. As far as I can tell from the documentation a ModalPopupExtender should be able to reside inside an UpdatePanel. However, I simply cannot get it to work.After the first refresh of the UpdatePanel I get errors of various kinds depending on what I've tried.
What I'm trying to accomplish is having a button inside an UpdatePanel which launches a popup. Another button inside the UpdatePanel causes a partial postback. And finally a button within the popup has to cause a partial postback. I have tried at least five different approaches to this problem and finally I gave up and went with a very inelegant solution. I don't think my requirements are all that strange, am I doing something wrong?
First I tried this:
[code]....
This works fine until after the first postback when the Cancel-button (Button4) starts causing synchronous postbacks and the textbox starts to fill up with commas. I also tried the same as above but placing an UpdatePanel within Panel4 (the popup) - no go. Then I tried causing the postbacks in javascript launched from the ModalPopupExtender's OnOkScript - still it starts failing. I tried another couple of attempts all of which failed. Finally I decided to move the ModalPopupExtender outside the UpdatePanel, add dummy buttons and a bit of javascript to launch and hide the popup. Although this satisfies my UI requirements it just plain wrong from a design perspective and it annoys me that I could not get the extender to work inside an UpdatePanel. Has anyone succeded with placing a ModalPopupExtender in an UpdatePanel with the requirements I stated above? Or should it be added to the list of controls that's just not compatible with the UpdatePanel?
i try to develop a login control with modlpopupextender within usercontrol. i have a problem with hiding modalpopupextender. i indicate that if i put modalpopupextender in aspx page directly it works, but when using in usercontrol it doesn't. my codes are:
[Code]....
[Code]....
i show modalcontrol on masterpage. it is ok. i click btniptal,modalcontrol hides. but after click the btniptal, if i refresh the page(postback) modalcontrol shows again. i said this above that if i put modalcontrol directly masterpage ,thing that i said doesn't happen. how can i solve this.
I have ValidationSummary in masterpage out of UpdatePanel and inside updatePanel i have my ContentPanel. I have an user control where iam having Save button which iam using in all my pages of application. Now i have a requirement like i need to show the validation summary in ModalPopUpExtender.
We use a ModalPopupExtender and set the PopupDragHandleID so it can be dragged around the browser.
This works great in most browsers; however one control that is loaded in the ModalPopup is wrapped in a scrollable div, and in Safari when you click on the scrollbar and then move the mouse it starts dragging the modal popup around.
I was hoping someone either has a fix for this issue, OR knows how to detect the browser in either css or javascript and remove the PopupDragHandleID.
I think I've found a bug in the ModalPopupExtender. Here is the details:
Problem
When you use ModalPopupExtender within an UpdatePanel, the controls in the PopupControl (the Panel containing the content needs to be poped up) will be rendered, even though the NamingContainer (or the parent) of the ModalPopupExtender and the PopupControl is set to invisible. This may cause Event Validation error between AsynPostBacks. Cause
The controls in the PopupControl will not be rendered within the UpdatePanel, but at the bottom of the page outside the UpdatePanel. When the NamingContainer of the PopupControl and the ModalPopupExtender is set to invisible, the content outside the UpdatePanel won't be updated and therefore stays on the page.
Code
Default.aspx
[Code]....
Steps to reproduce the problem
Create a simple ASP.NET web application in VS using the code provided aboveRun the app in debug modeClick on button Show 1, and then click the link button Show. The popup panel should show up. Click either OK or Cancel to close out the popup panel.Click on button Show 2. You will see the content in the popup panel is displayed at the bottom of the page. However, the content should be invisible and should not be rendered, or should be removed from the page.Click on button Show 1 again. You will see the familar error message: Sys.WebForms.PageRequestManagerServerErrorException: Invalid postback or callback argument...
Further explaination
This error has nothing to do with the ViewState. When button Show 1 is clicked the second time, the page will try to load data (including ViewState, PostData and Session) into the controls on the page before btn1_Click is called. At this moment, pnl1 is still invisible, so the page will only try to load the data for the controls in pnl2. However, if you check the Request.Form.AllKeys in the watch window, the TextBox txt is part of the PostData. This doesn't match any control in pnl2, and then the exception is thrown.
I have tried many different ways, but none of them worked.