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Item Type: NewsGroup Date Entered: 1/20/2005 8:55:16 PM Date Modified: Subscribers: 0 Subscribe Alert
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ste810
Asp.Net User
Difference between overriding WebControl.RenderBeginTag() and Control.TagName1/20/2005 8:55:16 PM

0

Hi,

I am not sure if I completely grasp the difference in meaning of overriding WebControl.RenderBeginTag(HtmlTextWriter) and overriding Control.TagName.

For a custom control that inherits from an existing .NET server control, it has access to both of them. So if I want to change the beginning of the rendering of my custom control, which one should I override? Should they be mutually exclusive where you should only use one but not both at one time in your custom control?

I understand that when I write my own own MyCustomControl : .NET Server Control, if I don't like it being wrapped with a <span> tag, I can override TagKey.

If I cannot find my tag in HtmlTextWriterTag, ie. I have a weird begin tag, I can override TagName, meaning TagKey and TagName should be mutually exclusive.

But I struggle the difference between RenderBeginTag() and TagName... Experts please?
llangleyben
Asp.Net User
Re: Difference between overriding WebControl.RenderBeginTag() and Control.TagName1/30/2005 12:27:22 PM

0

Hi,
You are right, RenderBeginTag implementation of WebControl use RenderBeginTag method of HtmlTextWriter to render opening tag by TagKey or, if it is not recognized, by TagName. It adds attributes and styles to HTML element in process. Usually it is enough to override TagKey or TagName in custom control. You should override RenderBeginTag only if very unusual, odd rendering required.
Leon Langleyben

MCSD, ASP.NET MVP

Blog
master4eva
Asp.Net User
Re: Difference between overriding WebControl.RenderBeginTag() and Control.TagName2/6/2005 6:11:04 AM

0

Yes, whatever he said :-) .

The difference is, well... which one is easier to determine the tags in your code? Of course it will be with the overriding of the TagKey property... the RenderBeginTag method is there only for extreme cases.
-- Justin Lovell
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Difference between overriding WebControl.RenderBeginTag() and ... RenderBeginTag(HtmlTextWriter) and overriding Control.TagName. ... But I struggle the difference between RenderBeginTag() and TagName. ...
ASPRunner.NET. Articles. Basics of creating server controls. Part ... Since I will not discuss saving data between postbacks and using .... WebControl class exists, which has basic set of properties for control style customization. ... public virtual void RenderBeginTag(HtmlTextWriter writer ) ... If necessary, we need to override TagKey or TagName properties (WebControl uses tag by ...
Overview of user controls vs. custom controls Describes the differences between user controls and custom controls. ... <%@ Register TagPrefix="UC" TagName="TestControl" Src="test.ascx" %> ... WebControls .WebControl if you want the control to render HTML that ..... However, if you still want to override the Render method, you must override the RenderBeginTag ...
The WebControl Base Class and Control Styles require that we override the Render() method of the base Control class to emit ... WebControl constructor or by setting either the TagKey or TagName ... RenderBeginTag() method of WebControl. The WebControl version of ..... about the differences, which makes developing cross-browser-friendly web pages as well as ...
A Crash Course on ASP.NET Control Development: Deriving New ... There's no real structural difference between the two families; ... The button Web control, though, provides a slightly richer programming interface representing a .... NET controls and overridden only in a few cases. The RenderBeginTag ... Basically, each list control maintains a tag name internally (it's Select) ...

Difference between overriding WebControl.RenderBeginTag() and ... Difference between overriding WebControl.RenderBeginTag() and Control.TagName, > ROOT > NEWSGROUP > Asp.Net Forum ...
Difference between user control and master page ? - ng.asp-net ... You then declare a user control PageUtil object in MasterPage class ... difference between overriding webcontrol.renderbegintag() and control.tagname . ...
Repeater with multiple itemtemplates - ng.asp-net-forum.windows ... setting sub properties in visualstudio property browser. difference between overriding webcontrol.renderbegintag() and control.tagname ...






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