VB.net 对 Datagridview 的查询

Question

我需要在数据网格中显示值而不是 id。 我有两张桌子 表1，有empid，receivebyid，releasebyid，这个ID只参考表2 其中 Table2 具有 id、name。

我需要在 datagrid Table1 上显示尊重 NAME 而不是 ID。 ex Table1 ID 是 1,3,3 Table2数据为，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()