ComboBox in Datagrid view

cocoonwls

Hi all, Basically i have 2 question in this message.I am using DataGridViewComboBoxColumn to insert a ComboBox into my datagridview.Code as below:

        dataGridView1.Columns.Remove("Seqence\_Number");  <----remove the original column first before add the combo box
        DataGridViewComboBoxColumn dgvComboBox = new DataGridViewComboBoxColumn();
        dgvComboBox.DataPropertyName = "Seqence\_Number";
        dgvComboBox.HeaderText = "Sequence (Stage)";
        dgvComboBox.DropDownWidth = 100;
        dgvComboBox.Width = 100;
        dgvComboBox.MaxDropDownItems = 10;  
        dgvComboBox.FlatStyle = FlatStyle.System;

        dsTemp = singleton.ProdetailsDataset.Copy();  <-----dataset will copy from my singleton class
        dgvComboBox.DataSource = dsTemp.Tables\[0\];
        dgvComboBox.ValueMember = "Stage\_Name";
        dgvComboBox.DisplayMember = "Stage\_Name";
     
        dataGridView1.Columns.Insert(1,dgvComboBox);

The first question is, how can i display more than one value member in ComboBox? The second qeustion is, how can i do a selected event for that ComboBox in datagridview? what i wanna do is when user select the value in ComboBox, some event will fire to validate the value which selected by user. Any tips are welcome, Thanks in advance

Gopal S

Hi, 1) Concatnate the two column values (in a query) and assign as a value member. 2) You can use "EditingControlShowing" event to access the "SelectedIndexChanged" event for combobox cell. Here is the Code Snipet: private void Form1_Load(object sender, EventArgs e) { this.dataGridView1.EditingControlShowing += new System.Windows.Forms.DataGridViewEditingControlShowingEventHandler(this.dataGridView1_EditingControlShowing); } private void dataGridView1_EditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e) { ComboBox ctl = e.Control as ComboBox; if(ctl!=null) ctl.SelectedIndexChanged+=new EventHandler(ctl_SelectedIndexChanged); } private void ctl_SelectedIndexChanged(object sender, EventArgs args) { MessageBox.Show("Selected Index Changed Event"); } Thanks,

Gopal.S

cocoonwls

Hi Gopal.S Thanks for your suggestion. I am just figure out how to do it, but seem you have a better suggestion :) 1) I just simple Concatnate the columns after i get the dataset, something like below: string s = dsTemp.Tables[0].Rows[1][2].ToString() + dsTemp.Tables[0].Rows[1][3].ToString(); 2) I am using CellEndEdit,as below;

this.dataGridView1.CellEndEdit += new DataGridViewCellEventHandler(dataGridView1_CellEndEdit);

private void dataGridView1_CellEndEdit(object sender, DataGridViewCellEventArgs e)
{
 string cellvalue;
 if (e.ColumnIndex == 1)
 {
  cellvalue = dataGridView1.Rows[e.RowIndex].Cells[1].Value.ToString();
  if (cellvalue != null && cellvalue != "")
  {
   //some coding here
  }
}

I will try you suggestion too, Thanks :laugh: