loading DB data in to a combobox in a DataGridView

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how can i load DB data in to a combobox in a DataGridView.

i tried following code..

private void edit_res_per_Load(object sender, EventArgs e)
       {
           mycon = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=D:\\ETMSetms.accdb");
           string query = "Select resid as ID, resname as Person_Name, resorg as Organisation, orgadd as Office_Address, resdesg as Designation, resdept as Department,resadd as Residential_Address,resph as Phone_no, reseid as Email_Id  From resperson order By resid ";
           da = new OleDbDataAdapter(query, mycon);
           OleDbCommandBuilder cb = new OleDbCommandBuilder(da);
           dt = new DataTable();
           da.Fill(dt);

           dgv1.DataSource = dt;

           DataGridViewComboBoxColumn c = new DataGridViewComboBoxColumn();
           c.HeaderText = "Designation";
           c.DataSource = "resperson";
           c.DisplayMember = "resperson.resdesg";
           c.ValueMember = "resperson.resdesg";
           dgv1.Columns.Insert(4,c);



           mycon.Close();
       }

But nothing is working...
Can any one help me......

Posted 14-Jun-11 20:49pm

Ragi Gopi

Updated 14-Jun-11 20:52pm

v3

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Dave Kreskowiak · Answer 1 · 2011-06-15T04:28:00

Look at the column names you're returning from your SQL query. The names you're putting in the AS clauses are the ones the columns are going to have in the datatable. Your code should be more like:

c.DataSource = dt;
c.DisplayMember = "Designation";
c.ValueMember = "Designation"

Though, you're not returning a table of Designations to choose from, so what you're doing is kind of pointless.

Prerak Patel · Answer 2 · 2011-06-14T20:52:00

Solution 1

Use following

c.DataSource = dt;
c.DisplayMember = "Designation";
c.ValueMember = "Designation";

Posted 14-Jun-11 20:52pm

Prerak Patel

Updated 15-Jun-11 18:08pm

v2

Comments

Ragi Gopi 15-Jun-11 2:55am

@Prerak Patel
not working..

Prerak Patel 15-Jun-11 7:59am

What is the error? While debugging check the data in dt.

Prerak Patel 16-Jun-11 0:09am

Did you try what Dave said? That should work.