我可以在遇到SQL超时的页面上显示global.asax发出的警报吗?

在global.asax.vb中

Sub Application_Error(ByVal sender As Object, ByVal e As EventArgs)

        If TypeOf (Context.Error.GetBaseException) Is System.Data.SqlClient.SqlException Then

            Dim ex As System.Data.SqlClient.SqlException = Context.Error.GetBaseException

            If (ex.Errors.Count = 1 And ex.Number = -2) Then

                Server.ClearError()

                Response.Redirect(Context.Request.Url.ToString() & "?error=MessageHere")

            End If


        End If

End Sub

在C中

public void Application_Error(object sender, EventArgs e)
{
    if ((Context.Error.GetBaseException) is System.Data.SqlClient.SqlException) {
        
        System.Data.SqlClient.SqlException ex = Context.Error.GetBaseException;
        
        if ((ex.Errors.Count == 1 & ex.Number == -2)) {
            
            Server.ClearError();
                
            Response.Redirect(Context.Request.Url.ToString() + "?error=MessageHere");
            
        }
    }
}

您可以使用web.config自定义错误 as explained here