Question

I’m working on small web form,in C#/ASP.NET. I want to store the errors messages into variables of C# class; something like this:

public static class ErrorMessages { 
 public static string fooX = "baa"; 
 // etc..
}

And then concat it in some attribute of an ASP tag:

<asp:RegularExpressionValidator runat="server"
     ControlToValidate="baain"
     ErrorMessage= *ErrorMessages.fooX*
 />

Is it possible? if yes, how to do this?

Answer 1

In the aspx page you may try:

ErrorMessage='<%# ErrorMessages.fooX %>'

In your code behind on page load call DataBind();:

protected void Page_Load(object sender, EventArgs e)
{
    if (!Page.IsPostBack)
    {
        DataBind();
    }
}

I am not sure about concatenating the aspx part of the page, you can set the ErrorMessage property of your RegularExpressionValidator in the code behind. Something like:

RegularExpressionValidator1.ErrorMessage = "Your message";

or

RegularExpressionValidator1.ErrorMessage = ErrorMessages.fooX;