Templates - Templated Server Controls Difference Between UpdatePanel And Other Controls?
Jun 8, 2010
Using the advise given on this post...
[URL]
... I was able to create a nice templated server control.
However, what I noticed is that on some templated controls such as the ASP.Net UpdatePanel you dont need to use FindControl to find the actual control inside your template. UpdatePanel has a template (or similar) and this just allows dirrect access to your controls without using the FindControl method that I have to use on the templated control I have created.
How do I make my control like the update panel where no template is needed?
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Aug 11, 2010
I have a templated user control with single instance template attribute. It works great for everything except the following scenario:
[Code]....
The folder selector uses a tree view that allows people to select a folder, its FolderSelected event works perfectly and the file selector updates with the files. The file selector has a repeater that lists the files in the selected directory. It has a linkbutton for each of the files so that the user can select a file. The problem is that the ItemCommand event of the repeater doesn't fire when the file name is clicked on. The page performs the async postback like it should, but in debug, the method to handle the itemcommand event is never hit. On the same user control to select files there is a button that the user can add files to the folder. When it is clicked, the event DOES fire and the file is added and the control refreshes in the update panel, everything perfect. It seems that because the linkbutton is already in a templated control (which is in a user control, in a templated control), the event isn't firing correctly. I am confused as to why this should be a problem, especially since all the other events (even the custom ones) fire as long as they aren't in another templated control. Since the code is complicated, I didn't want to post it all here.
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Feb 1, 2011
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Mar 22, 2011
I am trying to build a custom composite control, which allows me to add custom content to each child control. It's a similar concept to what you have with a GridView and TemplateColumn. The markup used to place the control on the page would end up being something like this:
[Code]....
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[Code]....
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Dec 7, 2010
I need a way to define a template that the control should render before each item..I currentky have the following code:
[Code]....
But Im kind of unsure about where to place the following code:
[Code]....
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Jan 5, 2010
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Mar 24, 2010
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May 27, 2010
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Jan 22, 2010
What is the best way to use jQuery Templates with GridView to achieve similar functionality of an UpdatePanel, such as add/edit/delete data without PostBack?
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Mar 13, 2011
I want to read from database without using templated control like gridview, listview ...etc I am being able to read from db, but shows only the first row;
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<div>
<asp:DropDownList
ID="ddlCustomer"
runat="server"
AutoPostBack="false"
OnSelectedIndexChanged="ddlCustomer_SelectedIndexChanged"
DataTextField="CustomerName"
DataValueField="CustomerID">
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<div>
<asp:Button ID="btnGetCustomers" runat="server" Text="Button" OnClick="btnGetCustomers_Click" />
</div>
<div>
<asp:Label ID="lblOrderDate" runat="Server" style="border:1px solid #ccc;" width="100"/>
<asp:Label ID="lblOrderName" runat="Server" style="border:1px solid #ccc;" width="100"/><br />
</div>
and code-behind;
[Code]....
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Feb 14, 2011
I have a gridview and one of the fields is a template field. The item template is a label and the edit template is a drop down box that all works lovely.in the Gridview1_RowUpdating event I would like to compare the original value for this template field with the new value (see if it goes from Pending to Approved). but I am struggling to find the old value for this field. I could save it to a module level variable in the GridView1_RowDataBound when I set the row to 'edit' but I think there is a better idea out there. I have tried to access the datarowview but it keeps coming back as Nothing e.g. This retuns nothing:
[Code]....
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Jan 27, 2010
I've created a templated user control by following the example on the microsoft support pages. I won't post it all but the important part of the CS file looks as follows:
[Code]....
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[Code]....
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Dec 20, 2010
I am trying to access a control from the code behind in a tmeplated user control and and keep getting an object reference exception.
Is it possible to access these controls. I have tried the find control and just referencing the object i.e. this.someID, non of which worked.
Here is my templated control:
[Code]....
Here is the template ascx code:
[Code]....
Here is the test user control that is using the template:
[Code]....
Here is the codebehind for the test user control:
[Code]....
I have also tried this which throws the same error:
Label label = (Label)this.Page.FindControl( "DateTimeLabel2" );
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Jul 14, 2010
I have a GridView and the second column (ie column 1) is:
[Code]....
On the GridView's SelectedIndexChanged event I have:
[Code]....
fullname is a Label alright, but its Text property is an empty string. How do I get the actual string that is shown in the cell?
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Feb 8, 2011
I'm working on a user control that renders couple nested divs (a rounded corner box to be frank). This is a templated user control, which means that user can put any control he wants into the header, body or footer of this box. Everything is working fine, except the fact that server-side controls can't be retrived from my box. Take a look at this code:
[Code]....
Now codebehind of that control:
[Code]....
I have cut out all the unimportant stuff.Now when I use this control:
[Code]....
I want to access controls in page codebehind file (on Page Load): LiteralNewses.Text="";
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May 25, 2010
I want to be able to do something like this
<test:TabControl id="" runat="server"....>
<ItemTemplate>
<tabItem label="tab1" />
<tabItem label="tab2" />
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</test>
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Jan 30, 2011
Is there any difference whether the DataSource was in or out the UpdatePanel?
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Apr 13, 2010
I am trying to develop a very simple templated custom server control that resembles GridView. Basically, I want the control to be added in the .aspx page like this:
[Code]....
I know that what I want to achieve is pointless and that I can use DataGrid to achieve it, but I am giving this very simple example because if I know how to do this I would be able to develop the control that I need.
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Nov 3, 2010
I have a custom Panel with attribute Designer(typeof(xxxMainPanelEditor), typeof(System.Web.UI.Design.WebControls.PanelContainerDesigner)). The child controls of this custom Panel Control at design time can see all the exposed properties that I want to share from the Parent (no problem here).
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Apr 26, 2010
I have recently found this snippet of code but I am unable to get it to work. Does anybody know if the $index syntax has changed in the latest version of the client templates?
[Code]....
I keep recieving $index is undefined.
The offending line is
[Code]....
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Feb 6, 2010
Here is what I am trying to do. I have a page with two link buttons and an updatepanel (the two linkbuttons trigger the updatepanel). I have two usercontrols which have labels with same ID's. When I click the first link button, I add the first usercontrol to the updatepanel and set the label value to datetime.now
when i click the second link button i add the second usercontrol but i see that the value of the label from the first control is set in the label in second user control. if the id's are different there is no problem - but in my case the usercontrols are being developed by different teams and I am integrating them in the way i mentioned - so they may have same ids.
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Oct 7, 2010
I have two update panels and one javascript control.
When the javascript button is clicked, it forces a partial postback on UpdatePanel2. UpdatePanel2 is populated with dynamically created buttons that have javascript effects (jquery) but when click can also induce a postback. My problem is that, when clicking on these dynamic buttons, the whole page does not do a partial post back but rather UpdatePanel2 itself does a partial postback and everything is gone.
However, what I want to do is be able to tie each of the dynamic buttons in UpdatePanel2 (After being dynamically created) and make them an asychnonous triggers to UpdatePanel1. So that when clicking on these dynamic buttons, ONLY UpdatePanel1 is doing a partial postback refresh. UpdatePanel2 stays put and remains the same.
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Apr 24, 2010
I find the repetition of sets of controls for each of the EditItemTemplate, InsertItemTemplate, and ItemTemplate templates of a FormView to be tedious and risky, in terms duplicating layout and code etc. I would much rather create a xxxDetails user control, and use this in each template, cutting layout and code location down to one location.
However, this introduces several complexities for data binding scenarios. Are there any extablished patterns or practice guides for using user controls in these scenarios?
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May 19, 2010
is there any difference between sql express and sql client. Actually I have been told to install a sql client using which i will connect to the sql server installed remotely. Also I have sql express edition 2008 installed on my machine. So is it the same. Will I be able to connect to the sql server using the sql server express edition.?
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May 11, 2010
Does anyone have an example for how to create a Dynamically Templated Listview with prefernces page to specify which columns & column order)? Also the listview would also have Edit, delete and insert options if possible. And uses the n-tier approach with Bus Layer and does NOT use LINQ.
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