Hello all,

In web forms we need to use validation controls at many stages, and in a complete website we have many pages which need validations.

But at every page we have to use those validation controls with full definition. So isn't there a way to use validation controls as we do with css classes, just define once and use anywhere.

for ex, for textbox and ragular expression I want to write code like this

<asp:TextBox ID="TextBox1" runat="server" ValidationClass="Regular(Email)"></asp:TextBox>
<asp:TextBox ID="TextBox2" runat="server" ValidationClass="Regular(ContactNo)"></asp:TextBox>
if it is possible anyhow.

Please tell me if this/or similar method is possible.

Many thanks

You could build your own custom controls. In this case, you would need a composite control that contains a TextBox and a RegularExpressionValidator. For more details: http://msdn.microsoft.com/en-us/libr...(v=vs.71).aspx

Not necessarily an easy thing to do, but it could be worth it if you have the need for validatable TextBox controls as you described.

Cheers,

Imar

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Imar Spaanjaars
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Author of Beginning ASP.NET 4.5 : in C# and VB, Beginning ASP.NET Web Pages with WebMatrix
and Beginning ASP.NET 4 : in C# and VB.
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Thanks Imar,
I will dare to do that, and update when I would do.