I get a javascript error that says the "element is null". But I don't understand why. I'm new with this control and calling a web service with the mpe. Can you see my error?I suspect my error is in how I have the dynamic properities set and not with the webservice itself but I don't see it.
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For my modalpopupextender control, within the panel control, can I have the buttons to be dynamically display based on condition?For example, in the panel control I have 2 buttons "OK" and "Cancel". On certain conditions, I want to show only "Cancel" button.
View 1 Replies have this piece of code which paint an ImageButton and show a dynamic ModalPopupExtender (with 2 buttons btnGuardar and btCancel).
The issue is neither btGuardar.Click nor btHidden.Click events are raised but ImageButton Click event is raised correctly.
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i have created a class as follows which will create a dynamic popup
public static void createModal() {
Button btnShow = new Button();
btnShow.ID = "btnCancel";
Panel p = new Panel();
p.ID = "ModalPanel";
p.Height = Unit.Percentage(300);
p.Width = Unit.Percentage(800);
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And in my page my design is as follows
<asp:ScriptManager ID="script" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="up" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="true">
<%--<Triggers>
<asp:PostBackTrigger ControlID="btnShow" />
</Triggers>--%> <ContentTemplate>
<asp:Button ID="btnShow" runat="server" Text="Open" OnClick="btnShow_Click"></asp:Button>
</ContentTemplate>
</asp:UpdatePanel>
This is my code on button click to show the popup
protected void btnShow_Click(object sender, EventArgs e) {
common.createModal(btnShow);
}
If i didnot include the trigger on the page modal is not showing, but if I include the trigger modal popup is showing, can this be achieved with out registering the triggers.
I have a DataList that contains some Thumbnail Image(Image Button).
Now I want when i click on any Item in datalist the original image come in modalpopupextender.
How I can do this?
<asp:DataList
ID="dlImgGallery"
runat="server"
RepeatColumns="3"
Width="100%"
onselectedindexchanged="dlImgGallery_SelectedIndexChanged"
DataKeyField="Id"
>
<ItemTemplate> <table
style="width:100%;">
<tr>
<td
></td>
<td
class="style3">
<asp:ImageButton
ID="ImageButton1"
runat="server"
ImageUrl='<%# Eval("Img_URL") %>'
BorderColor="#0098DB"
BorderStyle="Double"
BorderWidth="3px"
onclick="ImageButton1_Click1"
/>
</td>
<td
class="style3">
</td>
</tr>
</table> <br
/>
<cc1:ModalPopupExtender
ID="mpe"
runat="server"
BackgroundCssClass="ModalBackColor"
TargetControlID="ImageButton1"
PopupControlID="Panel8"
CancelControlID="btnCancel"
ondatabinding="mpe_DataBinding">
</cc1:ModalPopupExtender>
</ItemTemplate>
</asp:DataList>and
my panel that shows as modalpopu
<
asp:Panel
ID="Panel8"
runat="server"
onload
="Panel8_Load">
<asp:Button
ID="btnCancel"
runat="server"
Text="Cancel"
/>
<br
/>
<asp:Image
ID="Image1"
runat="server"
Height="102px"
Width="124px"
/>
</asp:Panel>
Now where I can to write code that when i click on item in datalist Original Image show in modal popup extender?
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.
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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.
Im just wondering how you go about creating dynamic properties on entities that generated from a database generated model.For example I have a UserInformation table. In that table it has basic information on the user (well derr) like user name, address details etc etc. I want to add a readonly property that concatenates the user's Name, Address details and Phone Number into one string that I can output to a view. Any ideas on how i would go about creating this dynamic property. This is just a simple example, i am wanting to do some more complex calculating and concatenating.
View 1 RepliesI have a vb.net class with properties defined as follows:
Private m_Property1 As String
Public Property Property1() As String
Get
Return m_Property1
End Get
Set(ByVal value As String)
If IsNothing(value) Then
m_Property1 = String.Empty
Else
m_Property1 = value
End If
End Set
End Property
I can then set the values as follows:
classname.Property1 = "myvalue"
How do I set the value of a property that is defined dynmically eg
Dim strPropertyName As String = "Property1"
I have a user control (i.e. ascx) that comprises of two related list boxes (i.e. once you change the selected item in one list the contents of the other list update). I'm adding this user control dynamically to a page on the click event of a button (i.e. using LoadControl).I wish to set the list box datasource properties, as well as the default selected item of the parent list from my parent page so I created public properties in my user control to accomodate this. I also created an event in my user control that notifes the parent page when the selected item changes in one of the list boxes so I can update the contents of the other list box.
I understand that I have to recreate the user control on every postback in order for it to function correctly but I'm not sure exactly how I should be doing it. I've shown below what I have currently - whilst it works the problem is that on postback I'm always creating the user control with all its default properties and then updating the properties that need to change(?). For example, when the choice in theparent list box changes the datasource of the list box is set twice (once in AddControl and then again in OnParentChanged)? As the contents of the list boxes originate in a database it means I'm making unnecessary calls to the database (unless I do some something like store each unique set of data in the ViewState).
I'd be very grateful if someone could review how I've done things and illustrate how perhaps I should be doing things. I'm not sure if the way I've done this is considered the 'correct' way. For example there may be a better way of doing things would avoid setting the properties twice? I'm a bit unsure of the way I've set the datasource properties of the list boxes and bound them. I wished to set the datasource from the parent page because I might have a second user control on my page that may also use the same datasource and I could reuse it (as opposed to each control making its own call to the database) so I'd like to keep this feature if possible.It would be great if posting code in reply that you use my example as a guide so I know what you're referring to.Here's the code for my user control:
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Here's the code for my containing page:
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I am in need of some assistance in regards to how to best set the values of properties for a Web User Control which is being included into a cell of a GridView with dynamically created columns. I have tried a few different approaches, but can't seem to get a satisfactory result. Also, to be completely honest, I am not really sure if I am using best practices for what I am trying to accomplish.
First off a little background:I have a GridView for which we will never know the exact number of columns at run time. The columns are predicated by user selection. I am creating the command text for the DataSet on the fly and then looping through the columns of the resulting DataTable in order to use custom TemplateFields. This works ok for just printing out the row values but not so much for when I need to insert the Web User Control into a cell.The Web User Control is in essence a collection of image links which are used as a "Quick Nav" tool. I need to pass the values of 2 fields from each DataRow to the control via properties (for example, CustID and ProductID). I am using custom TemplateField classes inheriting from ITemplate for displaying my fields and extending the DataBinding event like so: [Code]....
This won't work for my User Control as DataBinding is called after the control is loaded into the page and I need the properties to be set before the Page_Load event of the control is fired.Is there a GridView event I should be looking into instead such as RowCreated or RowDataBound? Or should I modify how I loop through the DataTable by doing rows first, then the resulting columns as I've seen done elsewhere?
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:
< cc1: ModalPopupExtender ID="NamePopup" runat="server" PopupControlID="OptionPanel" TargetControlID="btnD" BackgroundCssClass="mpBg" DropShadow="true" OkControlID="btnSavePopup" CancelControlID="btnPostCancel" >
< / cc1:ModalPopupExtender>
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:
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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?
this is my final solution:
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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:
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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.
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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.
View 1 RepliesWe 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
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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.
in my c# code i have the following;
ModalPopupExtender2.Show();
This works fine my popup appears, so i put an ok button on the Panel and on_click in the code file i tried to;
ModalPopupExtender2.hide();
But it dosent work - nothing happens. I dont have it in an update panel.
UpdatePanelAnimationExtender in ModalPopUpExtender leads to a white/blank screen in IE. Works flawlessly in FF and Chrome.
I already tested <FadeIn Duration="0.5" Fps="50" forceLayoutInIE="true" />
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:
http://www.laneros.com/attachment.php?attachmentid=185893&d=1290707244
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:
http://www.laneros.com/attachment.php?attachmentid=185894&d=1290707443
Si alguien me puede echar una mano para evitar esta situación se lo agradecería mucho.
using a modalPopupExtender inside an UpdatePanel (the popup control is a Panel), the popup acts normal (renders on top) using the modalPopupExtender.show() command to display. If you cancel the popup, the next popup will be under the other controls on your page. I have another modalPopupExtender which is not being displayed through the show command but is activated by another control. This one works normally. So something is going on with the show() function inside an UpdatePanel. If I remove the UpdatePanel, both popups work normally.
View 2 RepliesI've been prototyping the use of the ModalPopUpExtender but find that the BackgroundcssClass fills the entire screen even though I have defined the width and height. So when I click on link button the popup fills the entire window and the X/Y positioning has no effect. Other than that the content displays fine. Any thoughts on this issue?
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Am trying to get a modalpopupextender working, and it's driving me insane. I can get the popup to show, but it fills the whole browser. How do you set the size of the popup?
Here is my code:
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Also the popup is not transparent, how do I make it so. The css I am using for the popup is as follows:
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I have a user control with OutputCache set to vary by any param (*). This user control has a LinkButton, which when clicked, causes a postback, and displays a ModalPopupExtender (the extender's TargetControlID is a dummy link). The user control is included on an aspx page.
The LinkButton is displaying the popup just fine. But if I open another browser tab/window/type, the LinkButton fails to generate the popup. I've tried (all separately):
moving the popup extender and its associated control to the main aspx page use OutputCache Location="None" on main page dynamically create the Popup extender and its associated control in Page_Init of both ascx and aspx
I have created a panel with a CheckListBox populated from a SQL datasource, an OK and Cancel button. I have set up the OnOKscript to work and I can click the OK button and populate a label on the page. On the OK click I want to get the selected Checkboxlist values.In the page I have added this
<script
type="text/javascript
function SaveRREData() {
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