Improve company productivity with a Business Account.Sign Up

x
  • Status: Solved
  • Priority: Medium
  • Security: Public
  • Views: 711
  • Last Modified:

ASP.NET SQL Select a record based on Membership UserID

I have the code shown below in an ASP.NET Web site.  I am trying to select a record from a table in an SQL database (Membership with added tables) where two fields match my selection criteria.  I can select on only the Fair_ID (an integer) but can not figure out how to set up the types to get the selection on the Master_UserId (SQL type uniqueidentifier - the same as Membership 'UserId'). I get casting errors.'
How do I set this up so that I can select the record(s) where the UserId is the same as the SQL Membership UserId?  
ASPX Page Code:
 <asp:SqlDataSource ID="SqlDataSource1" runat="server" 
    ConnectionString="<%$ ConnectionStrings:aspnetdbConnectionString %>" 
    
        SelectCommand="SELECT * FROM [Fairs] WHERE (([Fair_ID] = @Fair_ID) AND   ([Master_UserId] = @Master_UserId))">
    <SelectParameters>
        <asp:Parameter Name="Fair_ID" Type="Int32" />
        <asp:Parameter Name="Master_UserId" Type="Object" />
    </SelectParameters>
 </asp:SqlDataSource>
 
VB Code
  Protected Sub SqlDataSource1_Selecting(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.SqlDataSourceSelectingEventArgs) Handles SqlDataSource1.Selecting
        Dim myObject As MembershipUser
        myObject = Membership.GetUser()
        Dim userid As String  ' this just to test my code
        userid = myObject.ProviderUserKey.ToString()   
        TextBox1.Text = userid   ' This shows the correct user ID
        e.Command.Parameters("@Fair_ID").Value = 100  ' This line works
' next line fails in debug with error:
 ' Unable to cast object of type 'System.Guid' to type 'System.Data.Common.DbParameter'.
        e.Command.Parameters("@Master_UserId") = myObject.ProviderUserKey()
        ' the next line will not compile
        ' e.Command.Parameters("@Master_UserId") = myObject.ProviderUserKey.ToString()
    End Sub

Open in new window

0
newtovista
Asked:
newtovista
1 Solution
 
newtovistaAuthor Commented:
http://www.asp.net/learn/security/tutorial-08-vb.aspx has the answer which is:
        ' Get a reference to the currently logged on user
        Dim currentUser As MembershipUser = Membership.GetUser()
        ' Determine the currently logged on user's UserId value
        Dim currentUserId As Guid = CType(currentUser.ProviderUserKey, Guid)
        ' Assign the currently logged on user's UserId to the @Master_UserId parameter
        e.Command.Parameters("@Master_UserId").Value = currentUserId
 
0
Question has a verified solution.

Are you are experiencing a similar issue? Get a personalized answer when you ask a related question.

Have a better answer? Share it in a comment.

Join & Write a Comment

Featured Post

Improve Your Query Performance Tuning

In this FREE six-day email course, you'll learn from Janis Griffin, Database Performance Evangelist. She'll teach 12 steps that you can use to optimize your queries as much as possible and see measurable results in your work. Get started today!

Tackle projects and never again get stuck behind a technical roadblock.
Join Now