Hi,
I also got error when register a new user.
error as per below:-
Server Error in '/forum_discussion' Application.
Page.IsValid cannot be called before validation has taken place. It should be queried in the event handler for a control that has CausesValidation=True and initiated the postback, or after a call to Page.Validate.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Web.HttpException: Page.IsValid cannot be called before validation has taken place. It should be queried in the event handler for a control that has CausesValidation=True and initiated the postback, or after a call to Page.Validate.
Source Error:
Line 59: protected void ForumRegisterClick([NotNull] object sender, [NotNull] EventArgs e)
Line 60: {
Line 61: if (!this.Page.IsValid)
Line 62: {
Line 63: return;
Source File: C:\inetpub\wwwroot\YAFNET-master\YAFNET-master\yafsrc\YetAnotherForum.NET\pages\admin\reguser.ascx.cs Line: 61