将数据表绑定到数据网格

问题描述

大家好，
我写了一个返回DataTable的函数.并在按钮Click事件中调用了该函数，因此当引发该事件时，该函数将返回数据表，并且我能够将数据表绑定到数据网格.问题是当第二次引发按钮事件时，第二次引发按钮事件时，在数据网格中看不到第一次事件中绑定的数据，因此需要在数据网格中显示新旧信息，所有这些是COMPACT FRAMEWORK-> WINCE APPLICATION

此功能已定义

Hi everyone,
I wrote a function which returns DataTable. And called that function in button Click event so when the event is raised the function returns the data table and I am able to bind the data table to data grid. And the problem is when the button event is raised for the second time the data which is bound in the first event is not seen in datagrid when button event raised second time so need to display the old and new information in the data grid and all this is COMPACT FRAMEWORK->WINCE APPLICATION

THIS IS FUNCTION DEFINED

public DataTable getdetails(ComboBox descp, ComboBox veitype)
        {
            InitializeDB();
            SqlCeCommand scmd = new SqlCeCommand();
            DataTable dt = new DataTable();
            SqlCeDataReader sdr;
            try
            {
                scmd = con.CreateCommand();

                scmd.CommandText = "SELECT CHALLAN_CODE,CHALLAN_DESC,AMOUNT" + " FROM MB_MST_CHALLAN WHERE CHALLAN_DESC='" + descp.Text + "'AND (VEHICLE_TYPE='" + veitype.Text + "' OR VEHICLE_TYPE='A') AND STATUS='A'";
                SqlCeDataAdapter da = new SqlCeDataAdapter(scmd);
                da.Fill(dt);
            }
            catch (Exception ex)
            {
                MessageBox.Show(ex.Message);
            }
            finally
            {
                scmd.Dispose();
                CloseDbConnection();
            }
            return dt;
        }

推荐答案

<pre lang="vb">Dim dt1 As New DataTable
       dt1.Columns.Add("name")

       dt1.Rows.Add("NAME1")

       Dim dt2 As New DataTable
       dt2.Columns.Add("name")

       dt2.Rows.Add("NAME2")

       dt2.Merge(dt1)

但请确保两个表都具有相同的列名

but make sure that both table having same column names

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