Control attributes in asp.net page?

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C#

ASP.NET

I am trying to create a custom attribute for a control and have access to it in my asp.net page. All I need to do is store a simple string and have its value visable in my asp page (for clarity).

One example of what I am doing is using a validation control and I need two values. The first value is what is displayed on the page for the control using the "Error Message" attribute. I then iterate through the controls to create a summary text file with detailed info. I am currenty using the tooltip field to store the details.

ErrorMessage="Required"
ToolTip="The validation error you have encountered..."

then

for each validator...
if (!validator.IsValid)
... concatenate ToolTip + CHAR(13)...

I would like to create additional attributes I can set in the asp page like:

<asp:textbox id=... runat=... MyAttribute1=... MyAttribute2=

I know I can manage custom attributes from C# using the .attribute collection, but the attributes are not available in the asp page (from what I have seen). I have also seen (somewhat) complex approaches using [Attribute... on classes with overrides Both approaches seem complex for my needs.

THanks