Listboxes with Databindings

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  • Joerg
    #1

    Listboxes with Databindings

    Hi!
    I've two list boxes, both bind to different datasources (Datatable),
    but showing the same MemberValue (UserID)
    The listboxes are placed in a form which shows detail information from
    a datagrid about the actual selected row. The left box shows the
    avaible users, the right one the users added to actual selected row in
    the datagrid.
    When I select an Item in the left box and then click on a button, I
    want that the Item is added to the right. On the left it should not be
    anymore avaible.
    Showing the items in the right box is not a problem, because it's a
    related table to the datagrid. But how can I show only the users that
    are not in the right box, when this box is bounded to whole user
    datable (which has now relation)?

    Thanks for help!

    Tags: None
    • Morten Wennevik [C# MVP]
      #2
      Re: Listboxes with Databindings

      On Fri, 27 Jul 2007 07:55:11 +0200, Joerg <joerg.baas@s cs-software.chwrot e:
      Hi!
      I've two list boxes, both bind to different datasources (Datatable),
      but showing the same MemberValue (UserID)
      The listboxes are placed in a form which shows detail information from
      a datagrid about the actual selected row. The left box shows the
      avaible users, the right one the users added to actual selected row in
      the datagrid.
      When I select an Item in the left box and then click on a button, I
      want that the Item is added to the right. On the left it should not be
      anymore avaible.
      Showing the items in the right box is not a problem, because it's a
      related table to the datagrid. But how can I show only the users that
      are not in the right box, when this box is bounded to whole user
      datable (which has now relation)?
      >
      Thanks for help!
      >
      >
      Hi Joerg,

      I'm not sure I completely follow you, if you move a user from the left ListBox to the right one, can't you just delete that entry from the left DataSource (or set a value on some column that you can filter by)?

      --
      Happy coding!
      Morten Wennevik [C# MVP]

        Comment

        • JagdPanther
          #3
          Re: Listboxes with Databindings

          On 27 Juli, 07:55, Joerg <joerg.b...@s cs-software.chwrot e:
          Hi!
          I've two list boxes, both bind to different datasources (Datatable),
          but showing the same MemberValue (UserID)
          The listboxes are placed in a form which shows detail information from
          a datagrid about the actual selected row. The left box shows the
          avaible users, the right one the users added to actual selected row in
          the datagrid.
          When I select an Item in the left box and then click on a button, I
          want that the Item is added to the right. On the left it should not be
          anymore avaible.
          Showing the items in the right box is not a problem, because it's a
          related table to the datagrid. But how can I show only the users that
          are not in the right box, when this box is bounded to whole user
          datable (which has now relation)?
          >
          Thanks for help!
          Hello Joerg,

          I'm not sure I follow you either, and I'm also kind of new to .NET
          programming..! But I just wanted to mention that I spent many hours
          trying to figure out how to use ListBox:es as well, when I suddenly
          realised that the ListView component offers much more flexibility =)
          So I was just thinking, maybe you want to use two ListView:s instead??

          /JagdPanther

            Comment

            • Joerg
              #4
              Re: Listboxes with Databindings

              No I can't delete the entry from the data source, because when I move
              to the next record in the datagrid, I mus refresh the values,
              depending what is shown on the right.
              but a filter could be a good idea

              On 27 Jul., 09:14, "Morten Wennevik [C# MVP]"
              <MortenWenne... @hotmail.comwro te:
              On Fri, 27 Jul 2007 07:55:11 +0200, Joerg <joerg.b...@s cs-software.chwrot e:
              Hi!
              I've two list boxes, both bind to different datasources (Datatable),
              but showing the same MemberValue (UserID)
              The listboxes are placed in a form which shows detail information from
              a datagrid about the actual selected row. The left box shows the
              avaible users, the right one the users added to actual selected row in
              the datagrid.
              When I select an Item in the left box and then click on a button, I
              want that the Item is added to the right. On the left it should not be
              anymore avaible.
              Showing the items in the right box is not a problem, because it's a
              related table to the datagrid. But how can I show only the users that
              are not in the right box, when this box is bounded to whole user
              datable (which has now relation)?
              >
              Thanks for help!
              >
              Hi Joerg,
              >
              I'm not sure I completely follow you, if you move a user from the left ListBox to the right one, can't you just delete that entry from the left DataSource (or set a value on some column that you can filter by)?
              >
              --
              Happy coding!
              Morten Wennevik [C# MVP]- Zitierten Text ausblenden -
              >
              - Zitierten Text anzeigen -

                Comment

                • Joerg
                  #5
                  Re: Listboxes with Databindings

                  Thanks JagdPanterh
                  No, the listview is not the correct control tho show the items I have
                  in the datasource. I only want show users and move them from on box to
                  the other.

                  On 27 Jul., 11:41, JagdPanther <david.rundqv.. .@gmail.comwrot e:
                  On 27 Juli, 07:55, Joerg <joerg.b...@s cs-software.chwrot e:
                  >
                  >
                  >
                  >
                  >
                  Hi!
                  I've two list boxes, both bind to different datasources (Datatable),
                  but showing the same MemberValue (UserID)
                  The listboxes are placed in a form which shows detail information from
                  a datagrid about the actual selected row. The left box shows the
                  avaible users, the right one the users added to actual selected row in
                  the datagrid.
                  When I select an Item in the left box and then click on a button, I
                  want that the Item is added to the right. On the left it should not be
                  anymore avaible.
                  Showing the items in the right box is not a problem, because it's a
                  related table to the datagrid. But how can I show only the users that
                  are not in the right box, when this box is bounded to whole user
                  datable (which has now relation)?
                  >
                  Thanks for help!
                  >
                  Hello Joerg,
                  >
                  I'm not sure I follow you either, and I'm also kind of new to .NET
                  programming..! But I just wanted to mention that I spent many hours
                  trying to figure out how to use ListBox:es as well, when I suddenly
                  realised that the ListView component offers much more flexibility =)
                  So I was just thinking, maybe you want to use two ListView:s instead??
                  >
                  /JagdPanther- Zitierten Text ausblenden -
                  >
                  - Zitierten Text anzeigen -

                    Comment

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