hey coloco unda GridView1 conectado a una base en sql y me da este error me pueden ayudar
 
 
Server Error in '/mantenimiento' Application.
Unable to find the requested .Net Framework Data Provider.  It may not be installed.
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.ArgumentException: Unable to find the requested .Net Framework Data Provider.  It may not be installed.
 
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:
 
[ArgumentException: Unable to find the requested .Net Framework Data Provider.  It may not be installed.]
   System.Data.Common.DbProviderFactories.GetFactory(  String providerInvariantName) +1308959
   System.Web.UI.WebControls.SqlDataSource.GetDbProvi  derFactory() +67
   System.Web.UI.WebControls.SqlDataSource.GetDbProvi  derFactorySecure() +22
   System.Web.UI.WebControls.SqlDataSource.CreateConn  ection(String connectionString) +11
   System.Web.UI.WebControls.SqlDataSourceView.Execut  eSelect(DataSourceSelectArguments arguments) +89
   System.Web.UI.DataSourceView.Select(DataSourceSele  ctArguments arguments, DataSourceViewSelectCallback callback) +19
   System.Web.UI.WebControls.DataBoundControl.Perform  Select() +142
   System.Web.UI.WebControls.BaseDataBoundControl.Dat  aBind() +73
   System.Web.UI.WebControls.GridView.DataBind() +4
   System.Web.UI.WebControls.BaseDataBoundControl.Ens  ureDataBound() +82
   System.Web.UI.WebControls.CompositeDataBoundContro  l.CreateChildControls() +72
   System.Web.UI.Control.EnsureChildControls() +87
   System.Web.UI.Control.PreRenderRecursiveInternal() +44
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Control.PreRenderRecursiveInternal() +171
   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842
 
 
Version Information: Microsoft .NET Framework Version:2.0.50727.3053; ASP.NET Version:2.0.50727.3053 
   
 
 error aspx
 error aspx 


