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ASP .Net Datatable Problem

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  • R Rock Star

    Hi,    How can I filter two different datatables in a single datatable? like consider I have following two datatables DataTable A                           DataTable B PID   |   CID                     CID      |   FID 1      |   1                           1         |      1 2      |   2                           4         |      8 4      |   16                        16         |   32 So after filtering I can have a output like DataTable C PID   |   FID 1      |   1 4      |   32 So in my filtered dattable I can have only matching results of datatable A and Datatable C? How can I do this using .Net datatable?

    Rock Star

    N Offline
    N Offline
    Not Active
    wrote on last edited by
    #2

    This isn't an ASP.NET question, its a database question. You're best bet would be to construct the query to return the results appropriately.


    I know the language. I've read a book. - _Madmatt

    A 1 Reply Last reply
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    • N Not Active

      This isn't an ASP.NET question, its a database question. You're best bet would be to construct the query to return the results appropriately.


      I know the language. I've read a book. - _Madmatt

      A Offline
      A Offline
      Abhishek Sur
      wrote on last edited by
      #3

      I think he is asking to manipulate Application end DataTable, not Database tables. :sigh:

      Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.


      My Latest Articles-->** Windows7 API Code Pack
      Simplify Code Using NDepend
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      N 1 Reply Last reply
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      • R Rock Star

        Hi,    How can I filter two different datatables in a single datatable? like consider I have following two datatables DataTable A                           DataTable B PID   |   CID                     CID      |   FID 1      |   1                           1         |      1 2      |   2                           4         |      8 4      |   16                        16         |   32 So after filtering I can have a output like DataTable C PID   |   FID 1      |   1 4      |   32 So in my filtered dattable I can have only matching results of datatable A and Datatable C? How can I do this using .Net datatable?

        Rock Star

        A Offline
        A Offline
        Abhishek Sur
        wrote on last edited by
        #4

        You need to recreate the new DataTable. Create Column using DataTable.Columns.Add(new DataColumn() To add a column To add a new Row use DataTable.NewRow() then add the row as DataTable.Rows.Add:rose:

        Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.


        My Latest Articles-->** Windows7 API Code Pack
        Simplify Code Using NDepend
        Basics of Bing Search API using .NET

        R 1 Reply Last reply
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        • A Abhishek Sur

          I think he is asking to manipulate Application end DataTable, not Database tables. :sigh:

          Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.


          My Latest Articles-->** Windows7 API Code Pack
          Simplify Code Using NDepend
          Basics of Bing Search API using .NET

          N Offline
          N Offline
          Not Active
          wrote on last edited by
          #5

          I realize he is asking for that but it would be more effecient to do it at the database level.


          I know the language. I've read a book. - _Madmatt

          A 1 Reply Last reply
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          • N Not Active

            I realize he is asking for that but it would be more effecient to do it at the database level.


            I know the language. I've read a book. - _Madmatt

            A Offline
            A Offline
            Abhishek Sur
            wrote on last edited by
            #6

            Ok... No big deal buddy.. :thumbsup:

            Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.


            My Latest Articles-->** Windows7 API Code Pack
            Simplify Code Using NDepend
            Basics of Bing Search API using .NET

            1 Reply Last reply
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            • A Abhishek Sur

              You need to recreate the new DataTable. Create Column using DataTable.Columns.Add(new DataColumn() To add a column To add a new Row use DataTable.NewRow() then add the row as DataTable.Rows.Add:rose:

              Abhishek Sur **Don't forget to click "Good Answer" if you like this Solution.


              My Latest Articles-->** Windows7 API Code Pack
              Simplify Code Using NDepend
              Basics of Bing Search API using .NET

              R Offline
              R Offline
              Rock Star
              wrote on last edited by
              #7

              But I want only matching column of datatable A and datatable B in datatable C How can I do that?

              Rock Star

              1 Reply Last reply
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              • R Rock Star

                Hi,    How can I filter two different datatables in a single datatable? like consider I have following two datatables DataTable A                           DataTable B PID   |   CID                     CID      |   FID 1      |   1                           1         |      1 2      |   2                           4         |      8 4      |   16                        16         |   32 So after filtering I can have a output like DataTable C PID   |   FID 1      |   1 4      |   32 So in my filtered dattable I can have only matching results of datatable A and Datatable C? How can I do this using .Net datatable?

                Rock Star

                E Offline
                E Offline
                Ekvilibrium
                wrote on last edited by
                #8

                Copy all DataTable to arrays, manipulate or filtering and create new DataTable

                R 1 Reply Last reply
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                • E Ekvilibrium

                  Copy all DataTable to arrays, manipulate or filtering and create new DataTable

                  R Offline
                  R Offline
                  Rock Star
                  wrote on last edited by
                  #9

                  I was thinking of using select method. Is there any example for selecting data from two different datatables?

                  Rock Star

                  N 1 Reply Last reply
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                  • R Rock Star

                    I was thinking of using select method. Is there any example for selecting data from two different datatables?

                    Rock Star

                    N Offline
                    N Offline
                    Nishant Singh
                    wrote on last edited by
                    #10

                    If you are using dotNetFramework 3.5 using Linq would be the easiest way

                    A 1 Reply Last reply
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                    • N Nishant Singh

                      If you are using dotNetFramework 3.5 using Linq would be the easiest way

                      A Offline
                      A Offline
                      April Fans
                      wrote on last edited by
                      #11

                      Use the SQL sentence: SELECT A.PID,B.FID FROM A,B WHERE A.CID=B.CID, write it in Visual Studio or Procedure

                      April Comm100 - Leading Live Chat Software Provider

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                      • R Rock Star

                        Hi,    How can I filter two different datatables in a single datatable? like consider I have following two datatables DataTable A                           DataTable B PID   |   CID                     CID      |   FID 1      |   1                           1         |      1 2      |   2                           4         |      8 4      |   16                        16         |   32 So after filtering I can have a output like DataTable C PID   |   FID 1      |   1 4      |   32 So in my filtered dattable I can have only matching results of datatable A and Datatable C? How can I do this using .Net datatable?

                        Rock Star

                        A Offline
                        A Offline
                        April Fans
                        wrote on last edited by
                        #12

                        ???Do you want to get a datatable?? StringBuilder strSQL= new StringBuilder("select A.* from A a inner join B on A.CID = B.CID"); SqlCommand cmd = new SqlCommand(strSQL.ToString(), conn, transaction); DataTable C= new DataTable(); C.Load(cmd.ExecuteReader(), LoadOption.Upsert);

                        April Comm100 - Leading Live Chat Software Provider

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