Are there any rules of thumb for deciding to go with a rendered vrs composite control? Are there times where you would definantly want to choose one over the other. What are the tradeoffs (Performance, additional overhead, etc), or is it mostly a matter of style or employer policy. ...more >>

I have written my own class that implements IExtenderProvider - it adds a couple of extra properties to all the WebControl controls on the page. The new property values are stored in a Collection within my extender class. In order to persist the property values in code, I wrote my own serialize...more >>

Hi I've spent the last 2 days searching the Net and Knowledge base for a "working" example of how to change the border properties of a DropDownList box. Can anyone tell me WHY ! Microsoft would miss out such a major thing like this ? No examples I have tried actually work, even though the option...more >>

Can this be done? The site has a few frames, some on top, some on the side, and the middle one. I want to be able to tell the one side frame containing the menu, to change the menu contents when a user logs in, and also the change the top banner (in another frame) to something targeted at this...more >>

Ok, I got three tables, company, comments and old_company. In company are all the current companies, in old_company are companies who have been suspended, and in comment, clients can make comments about the companies, regardless if they are current or suspended companies. I currently display...more >>

Should I create controls for a composite WebControl in the CreateChildControl or the Render method? It seems like CreateChildControl is not called at design time when the control is on a page being designed. Here's my situation. I'm making a composite WebControl that has a label and a RadioB...more >>

Hi All! I'm attempting to create a Designer for a Custom Server Control that I've designed. It doesn't have any interactivity, but I'm trying to spruce it up a bit by adding an image with my company logo, etc. to the design-time rendering. I've done quite a bit of research and have found ver...more >>

Hello, I have a custom control that works fine with it's viewstate when it is placed as a tag inside the aspx (I need to read if a Checkbox, rendered by the custom control, is checked). Problem is that I want to create it dynamically (in Page_Load or the OnInit of the aspx) and than add it to ...more >>

We designed a dynamic control loading framework that loads ASCX files into placeholders in a single ASPX page that inherits from a base page class. The framework consists of a controller device that is dragged out onto the ASPX page and "devices" that are dragged out onto the ASCX files. At ru...more >>

Hi, I have some trouble (again) with a WebControl, I've a some properties = that depends on other properties. The problem is when I change a = property which also changes another, the aspx file doesn't update the = last one. What's the trick to update the aspx file? Here is sample componen...more >>

Is it possible to make a custom WebControl reder itself at design time? I've made a WebControl that contains a Label and a RadioButtonList. It works fine at run time, but at design time it just draws a solid while box. Neither the Label nor the RadioButtonList render themself. Am I doing someth...more >>

If I've got a property on my web control that is a collection (of strings), how can I have it allow the user to edit those strings through the property window at design time? The property on my webcontrol is defined as: Private WithEvents m_Choices As ChoiceList Property Choices() As ...more >>

Hi all, I have created one base class (which derive from System.Web.UI.Page class) from which all my web pages will derive. In this class I override the OnInit method and create a HtmlForm on the fly: -------------------------------------------------------------------- protected override vo...more >>

I've problems using Color for a WebControl I've declared a property called TEST which is of the type Color. Comparing to existing Color properties, such as ForeColor I can spot the following difference; 1. Setting TEST to a custom color (#121212) then the property windows shows "18; 18; 18"...more >>

I have a server control that is declared in the top of the .aspx page. I want to use the control in many, many pages, but do not want to hand-modify every .aspx page template. How can I specify that a control be added/used in the codebehind ..aspx.cs only and *not* touch the .aspx page? ...more >>

Hi, there I'm trying to write a non-rendering component that is manipulated at design time in VS.Net By non-rendering I mean the component doesn't generate any HTML tags In fact, the component is supposed to be used both for windows applications and web applications just like the DataSet class ...more >>

Hi, I've problems with a custom WebControl. The control has properties for letting the user set the relative path to some images and a xml file that the controls need. In runtime the images are displayed and the control can load the xml file. In design time however, this fails because the curr...more >>

Hello, I created a custom struct called Automobile. This struct has various properties called "Ford", "Chevy", "Dodge", "Pontiac", .... This struct is pretty much the exact same format as the .Net System.Drawing.Color struct where "Ford", "Chevy", ... would equate to the Colors "Red", "PaleGold...more >>

Hi, I have a custom user control. In that custom control MyControl. I am exposing a property called MyItems. The MyItems is a strongly typed collection of MyItem. I am exposing a MyItems in the user control as a public property. I want to be able to add items to the MyItems collection at design...more >>