خطادراجرا- ControlToValidate property of 'RequiredFieldValidator1' cannot be blank

[parisa_z]

سلام من وب سایتی که ساختم رو اجرا میکنم پیغام زیر رو میده چیکار کنـــــــم؟؟؟؟

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Server Error in '/Login' Application.

The ControlToValidate property of 'RequiredFieldValidator1' cannot be blank.

[FONT=Arial, Helvetica, Geneva, SunSans-Regular, sans-serif] 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: The ControlToValidate property of 'RequiredFieldValidator1' cannot be blank.

Source Error:

An unhandled exception was generated during the execution of the current web request. Information regarding the origin and location of the exception can be identified using the exception stack trace below.
Stack Trace:

[HttpException (0x80004005): The ControlToValidate property of 'RequiredFieldValidator1' cannot be blank.] System.Web.UI.WebControls.BaseValidator.ControlPropertiesValid() +1840534 System.Web.UI.WebControls.BaseValidator.OnPreRender(EventArgs e) +33 System.Web.UI.Control.PreRenderRecursiveInternal() +86 System.Web.UI.Control.PreRenderRecursiveInternal() +170 System.Web.UI.Control.PreRenderRecursiveInternal() +170 System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +2041
Version Information: Microsoft .NET Framework Version:2.0.50727.1433; ASP.NET Version:2.0.50727.1433 [/FONT]​