Question

我需要在datagrid中显示值而不是id。我有两张桌子表1，具有empid，receivedby，releasebyid，此ID仅在表2中引用其中Table2具有id，name。

我需要在datagrid上显示Table1尊重NAME而不是ID。 ex表1 ID是1,3,3 表2数据是，1 - Name1,2 - Name2,3-Name3

输出应该是，

  Name1, Name3, Name3

Answer 1

对于C＃

         StringBuilder sb = new StringBuilder();
         sb.appendLine(" select b.name as EmpName,c.Name as Receivedby,d.name as releasedby from table1 as a ");
         sb.appendLine(" inner join table2 as b on a.empid = b.id ");
         sb.appendLine(" inner join table2 as c on a.receivedbyid = b.id ");
         sb.appendLine(" inner join table2 as d on a.releasebyid = b.id ");

         SqlConnection conn = new SqlConnection(MyConString);
         SqlCommand cmd = new SqlCommand(sb.tostring(), conn);
                conn.Open();
                DataTable dataTable = new DataTable();
                SqlDataAdapter da = new SqlDataAdapter(cmd);

                da.Fill(dataTable);


                GridVIew.DataSource = dataTable;
                GridVIew.DataBind();

对于vb

Dim sb As New StringBuilder()
sb.appendLine(" select b.name as EmpName,c.Name as Receivedby,d.name as releasedby from table1 as a ")
sb.appendLine(" inner join table2 as b on a.empid = b.id ")
sb.appendLine(" inner join table2 as c on a.receivedbyid = b.id ")
sb.appendLine(" inner join table2 as d on a.releasebyid = b.id ")

Dim conn As New SqlConnection(MyConString)
Dim cmd As New SqlCommand(sb.tostring(), conn)
conn.Open()
Dim dataTable As New DataTable()
Dim da As New SqlDataAdapter(cmd)

da.Fill(dataTable)


GridVIew.DataSource = dataTable
GridVIew.DataBind()

VB.net查询Datagrid视图

1 个答案: