ASP.Net recursive findControl for HTMLGenericControls

Script version:1.0
Language:ASP.Net
Rating:
10 (1 votes cast)
Category:Miscellanious
Description:The HtmlGenericControl in the System.Web.UI.HtmlControls namespace has a findControl() method, however this method only returns controls that are immediate children, and nested controls cannot be found using this method. If you are trying to access a child control that is more than 1 node deep, you need to use a foreach iteration (which can sometimes bring up an error if you try to modify the control within the foreach loop). To get round this, here is a bit of code to extend the functionality of the findControl method.

Instructions:This bit of code is an extension of the recursive Find Control method by Steve Smith here: http://stevesmithblog.com/blog/recursive-findcontrol/

This method and a few others including the isNumeric, are now available in the ASP.Net ToolBox file.

The toolbox file contains the following helper static functions:

<b>isNumeric</b> - evaluates whether a string is a number

<b>isDate</b> - tests whether a string is a valid date

<b>isValidEmail</b> - checks whether a string conforms to a valid email address format

<b>isValidURL</b> - checks whether a string is a valid url

<b>CreateRandomPassword</b> - generates a random password

<b>CountStringOccurrences</b> - counts the number of times a pattern appears in a string

<b>GetIP</b> - returns the ip address of a visitor

Download the toolbox helper file here:

http://www.mykeblack.com/data/files/mykeblack.cs

Code:




Comments



dotNetFollower
http://dotnetfollower.com
30 September 2011 06:29:48
Nice post! My own FindControlRecursive helped me out many times. Especially, when I deal with MasterPages. For example, one of such usage is shown in my post here – <a href="http://dotnetfollower.com/wordpress/2010/12/sharepoint-add-onchange-attribute-to-dropdownchoicefield/">http://dotnetfollower.com/wordpress/2010/12/sharepoint-add-onchange-attribute-to-dropdownchoicefield/</a>. Thank you!

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