Custom Server Controls :: Getting Source Path Of Registered Controls By Tagname?

Jan 15, 2010

I have some user controls registered in the web.config.

Now I need to load some of them dynamiclly with the page.loadcontrol() function. This function needs a virtual path to the .ascx file. Is it possible to get this virtual path (that is the same as the source path in the config) by the tagname?

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Custom Server Controls :: How To Get All The Composite Controls Present In The Registered Assembly

Aug 17, 2010

I have created two composite controls in the same assembly and registered that assembly in a master page

using <%@
Register
tag.

When I try to use these controls using the registered tag prefix I am getting only one control along with the tagprefix .

How to get all the composite controls present in the registered assembly?

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Custom Server Controls :: Make Root Relative Path?

Jul 26, 2010

I'm creating a custom server control which needs to take in a root-relative path for one of it's properties. I use the UrlProperty, but when I select a file in the markup, the selected path doesn't inlcude the the "~/". I'd like to mimic the behavior of a hyperlink. So let's say I have this:

<asp:HyperLink ID="HyperLink1" NavigateUrl

When I type in an equals sign after the NavigateUrl property, intellisense pops open a URL picker and I can pick from any page to produce this code:

<asp:HyperLink ID="HyperLink1" NavigateUrl="~/default.aspx"

this code has the "~/" in front. When I use my control, I have this:

<cc1:TestControl ID="TestControl1" Url="default.aspx"

the C# code has this property:

[UrlProperty]
public string Url { get; set; }

Does anyone know how I can make the "~/" be placed in front to make a root-relative path?

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Custom Server Controls :: Figure Out The Absolute Path To App_data Folder On Project?

Mar 31, 2011

I have an user control that reads the data from app_data folder and does some processing.In design time I'd like to show the row data in control placeholder (using GetDesignTimeHtml).To do that I need to figure out the absolute path to app_data folder on my project.The HttpContext is not available and HostingEnvironment.MapPath returns null.

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Custom Server Controls :: ".ascx" Is Not A Valid Virtual Path?

Jan 25, 2010

I am trying to create a templete for an outside vendor (who will be hosting that section) that is going to be doing a portion of our website. I need to give reference to our header and footer for the outside vendor to reference. I am getting the following error.Parser Error Description: An error occurred during the parsing of a resource required to service this request. Please review the following specific parse error details and modify your source file appropriately.Parser Error Message: 'http://www..mywebsite.com/CorporateHeadLinks.ascx' is not a valid virtual path.Here is the line of code that is creating the error:<%@ Register Src="http://www.mywebsite.com/CorporateHeadLinks.ascx" TagName="HLinks" TagPrefix="HeadLinks" %>When I go to the url I get404 - File or directory not found.

The resource you are looking for might have been removed, had its name changed, or is temporarily unavailable.The file does exist. I am assuming the 404 error has to do with the ascx page not having opening and closing html tags. The page is referenced in our locally hosted pages as follows and works fine.

<%@ Register Src="~/CorporateHeadLinks.ascx" TagName="HLinks" TagPrefix="HeadLinks" %>

Is there an IIS setting I am missing or does the reference need to be done differently? My webserver is Windows Server 2008.

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Custom Server Controls :: Custom Composite Control With Custom Templated Child Controls?

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]....

I have the code below, which allows me to put that markup on the page without throwing any errors, and it renders all the correct HTML, except it doesn't render the contents of the ColumnTemplate. I have replaced the Render() code with a comment because it's quite long winded and doesn't add anything important here:

[Code]....

I have tried to follow examples on MSDN and other forums but I can't make this work. I think I'm missing the code to render the contents of the template, but I don't know how to hook that up.

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Custom Server Controls :: Custom Tag Not Found For Control / Error: Unknown Server Tag 'custom:AjaxValidator'

Jan 3, 2011

Hope this is the correct forum for this question. I am using VWD 2010 an have a web project and get the following error upon execution:

Parser Error Message: Unknown server tag 'custom:AjaxValidator'.

My code is as follows in the .cs file:

[Code]....
[Code]....

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Custom Server Controls :: How To Custom Controls Derived From Existing Controls - Overriding Default Property Values

Nov 15, 2010

I have some (probably very basic) questions about developing custom controls. I am wanting to derive a set of button controls, and the first one I have started on is a "DeleteButton", that has a additional property (DeleteConfirmationText) that is built into the OnClientClick attribute. To get that added, I overrode the Render method as follows:

[Code]....

This all works well. Now, I will add some logic to make sure that there is some text in the DeleteConfirmationText property, but that isn't the intent of my question.
What I am also wanting to do is to override some of the default property values, so I added that to the default constructor:

[Code]....

Now, in the designer in VS2008, and I look at the properties for the control, there isn't a default value shown in the "Properties" section, and the Causesvalidation still shows the underlying classes default value of "True". As well, in design mode, where the GridView control that containse my DeleteButton control would be displayed, there is an error box "There was an error rendering the control. 'Are you certain you want to delete this attorney?' cound not be set on property 'DeleteConfirmationText'. Here's the markup where I am defining the deletebutton control:

[Code]....

What am I doing wrong?

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Custom Server Controls :: How To Get The Value Of Readonly Properties Of Server Controls Inside A Custom Server Control

Apr 4, 2010

I have a custom server control inheriting from CompositeControl. It consists of two RadioButtonlist controls that are rendered side by side in an html table. The number of ListItems in each RadioButtonList is not known until runtime. Depending on how many items each list contains, the RepeatColumns property of each list is set differently. To do this in the handler for the ItemDataBound event I need to get the count of ListItems in each RadioButtonList. How do I expose the Items.Count property of each internal RadioButtonList as a top-level property? I tried using a getter to return the count but this generates a compile-time error to the effect that the count cannot be assigned to--even though I have not created a setter.

Similarly, in the handler for the Submit event, I need to get the ClientID of each internal RadioButtonList to pass to a method that checks for data changes. How do I expose the ClientID of each component RadioButtonList as a top-level property?

I can of course index the Controls collection of the composite control to access the child control and read its properties--but that defeats the whole point of making a complex, independent custom server control.

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Custom Server Controls :: Initialize Background Image Url In Css File Into Custom Server Controls

Sep 29, 2010

i registered an image in AssemblyInfo.cs like this:

[Code]....

now i want to initialize that image in css file for background-image but it dose'nt work.
my css file is:

[Code]....
i also try with this :

[Code]....

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Custom Server Controls :: How To Create Custom Property (DataSource) In Custom Controls

May 15, 2010

I know that how to create custom control and add custom property.

I want to create property like DataSource to my custom control.

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Forms Data Controls :: Gridview Update With A Custom Source

Jan 27, 2010

I am binding gridivew with custom datasource. I have 3 columns and I want two columns to be editable. right now grid showing the data but i want it to delete and update as well.

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Custom Server Controls :: Controls Disappear In Custom Control Design View

Aug 9, 2010

I have a site using eight (so far) custom web user controls and two of them have started misbehaving in design view. When designing the control itself some (in one control) or all (in the other) regular controls (labels, text boxes, etc.) disappear from the design view surface. They can still be seen in the source view and if the control is hosted on a regular .aspx page the control displays properly. The code window recognizes all controls in the objects dropdown list and I can write appropriate code. The controls run properly on their hosted pages.

If I switch to Split view and select controls in the source view panel a very small area od the design surface becomes selected (like one pixel for any of us who remember programming old DOS applications with 80-column screens) but no controls can be seen.

In short, the controls work in every respect except that I cannot see all or part of the design surface in Design view when editing the controls directly.

I've double-tripple checked the source code for anything that may be causing this and just don't see anything. (The controls aren't that complicated.)

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Custom Server Controls :: Video Tutorial Link For Composite And Rendered Custom Server Control?

Aug 20, 2010

i am new to technology so go easy on this post according to what i read from web there are 3 type of custom server controls 1 superclass2 composite 3 renderedi found video tutorial for superclass custom server control but couldnt find video tutials for other 2.lease forward me link for composite and rendered custom server controls video tutorial

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Custom Server Controls :: Custom Server Control Rendering Method In Multiple Class?

May 17, 2010

I am creating custom server control. I have two classes in project. One is main class that render control and another will be used to render content based on condition.I just want to know how to render content from other classes in main class.For example. This isjust an example.My main class code

[Code]....

My TopLeftPane class

[Code]....

My page code on page load event

[Code]....

When I run the page, Header title always getting null. This is a just sample code. I will have more than 20 classes so I dont want to write a code in main class to render whole control.I hope all of you understand my problem.

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Custom Server Controls :: TemplateField [TextBox] Binded To DataSource (Custom Server Control)?

Jul 28, 2010

Case : a templatefield Text Box created by class TemplateHandler and added to the composite

control Grid .how to bind it to the DataSource Object of the Grid Class ?

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Custom Server Controls :: How To Use A Custom Server Control That Is Defined In Inline Code In The Same Page

Oct 22, 2010

I have to use inline code for an aspx page and I need to use a custom server control that is defined in the same aspx page but the control does not get processed as a server control. it gets returned as is as static html tag.

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Custom Server Controls :: Adding Controls To Custom Extended Gridview?

Oct 20, 2010

I have custom gridview that inherit from the regular gridview.

On of the features is that is has a built in page size dropdown in an extra header row.

Another feature is that this extra header row has a place holder where aditional controls can be added but here is where I have some problems.

When I add a control that is created outside the gridview to the gridviews builtin placeholder and tries to do anything that performs a postback the gridview dissepears, but appears again on a new post back.

Here is the code for the gridview:

[Code]....

And this is the way it is used in a usercontrol on page, the gridview is called gvList and the control that I try to add to its placeholder is the phrExtraHeaderControls:

[Code]....

What can be wrong, is the viewstate messed up in the postback so that the gridview can't be rendered?

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Custom Server Controls :: Nest Other Controls Inside The Custom Control?

Dec 1, 2010

I am writing a custom control by inheriting "Control".

I wany the custom control to have multiple control nested inside it i.e. my custom control can have other controls in it.

How can I do it, would I have to implement any interface or what.

At the end, I want the code to look something like this.

[Code].....

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Custom Server Controls :: How To Add A Dropdownlist Of Available Values For A Custom Server Control Property

Sep 13, 2010

How would I add a (dropdown) list of available values for a custom server control property?

(Just like 'Visible' property of most controls has valid values of 'True/False' and nothing else can be entered or selected)

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Custom Server Controls :: Embedded Javascript File In Custom Server Control?

Oct 19, 2010

I am creating a custom server control, and I am wanting to include a JavaScript file in the dll file when the control is built. I have tried suggestions from the following websites:[URL] But after following the directions, If I use firebug to see what errors show up, the JavaScript functions that are being called all say "goNext is not defined" which leads me to believe the JavaScript file is not being added correctly.

Some information on what my control looks like

I have the JavaScript File in a folder called Script. The namespace of the project is CustomControl, and the Name of the project is MaskedDateTextbox.

In my AssemblyInfo I have the following:

<Assembly: AssemblyVersion("1.0.*")>

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Custom Server Controls :: Client Side Functionality In A Custom Server Control Using Vb?

Oct 4, 2010

is it posible to add client side functionality to a custom server control in vb.net?i am looking at msdn library and there is no code for vb :/ http://msdn.microsoft.com/en-us/library/aa719700%28v=VS.71%29.aspxI fount this on MSDN Library Adding Client Capabilities to a Web Server ControlWhat i'm trying to do is to add some client functionality to my control, so that you can get or set some properties/values on client side. From the above link i see that this is doable with Ajax Server Control, but i don't have it, i have Custom Server Control. Can i do this with Custom Server Control and how?

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Custom Server Controls :: Implementing PostBackUrl Feature In A Custom Server Control?

Dec 20, 2010

I've build a custom server control inheriting from WebControl. Basically it is a kind of button. All is working perfectly except one thing: the PostBackUrl is inoperative.

I probably forgot to implement something. Actually I just added the property PostBackUrl. Probably I should also implement an interface of call something.

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Custom Server Controls :: Create C# Controls On Server Side For Posted Data That Had No Runat=server

Feb 4, 2010

HOWTO create ASP.NET C# controls on server side for posted data that had no runat=server on the client.

I have processes needing to post files to a ASP.NET application. These processes must post without runat=server as such:

<form ~~~~ to some ASP.NET/C#/aspx page>
<input type=file name=MY_FILE ~~~>
</form>

On the ASP.NET page, in the Page_Load I would code somethign like this:

[URL]

Here is the trick, the control "fileLIST_FILE" does not exist because the HTML does not have runat=server on it.

If the client did have runat=server the designer.cs would have somethign liek this:

System.Web.UI.HtmlControls.HtmlInputFile fileLIST_FILE;

With all that said, I want to make "fileLIST_FILE" on the fly inside Page_Load fromt he posted name of "MY_FILE".

do not focus on the fact that this is a file upload. I would like to know how to do this for any posted FORM data.

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Custom Server Controls :: Get Value Of Textboxes In Dynamic Custom Server Controls

Aug 4, 2010

how do i get the values of the textboxes of my dynamicly created user controls. I have somthing similar to the code below which adds many instance of the same user control to a panel but with diffrent properties value :

[Code]....

and here is the code-behind for the control

[Code]....

and this is the .ascx

[Code]....

And here is what the controls look like when thay are created

[URL]

I know that i have to recreate the controls on each postback but i need to know how to get the values of the entered text for each textbox

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