Combobox in DataGridView

Question

Hi I'm trying to setup a DataGridView with ComboBox but I can't manage to setup the selected value of the combobox. The ComboBox value & display members are from table[1] of a Dataset object and the rest of the datagrid columns are from Table[0] of the dataset. noseID (the primary key in Table[1] and the foreign key in Table[0]). How do I apply a selected value for the combobox? Here's my code: private void SetupDataGridView() { this.Controls.Add(afikimGrid); DataGridViewComboBoxColumn comboGrid = new DataGridViewComboBoxColumn(); comboGrid.DataSource = dsRisk.Tables[1]; comboGrid.DisplayMember = NoseDesc; comboGrid.ValueMember = NoseID; afikimGrid.DataSource = dsRisk.Tables[0]; afikimGrid.Columns.Add(comboGrid); } { this.Controls.Add(afikimGrid); DataGridViewComboBoxColumn comboGrid = new DataGridViewComboBoxColumn(); comboGrid.DataSource = dsRisk.Tables[1]; comboGrid.DisplayMember = NoseDesc; comboGrid.ValueMember = NoseID; afikimGrid.DataSource = dsRisk.Tables[0]; afikimGrid.Columns.Add(comboGrid); } Thanks Udi

Manikavelu Velayutham · Answer

You should write your code in OnItemDataBound event. In that event you need to find the combobox control and assign the selected value. On doing this you can assign the selected valud in the combo box. Below code will help you. protected void GridView1_RowDataBound(object sender GridViewRowEventArgs e) { if(e.Row.RowType == DataControlRowType.DataRow) { DataRowView drv=e.Row.DataItem as DataRowView ; String City=drv[City].ToString(); DropDownList ddl=(DropDownList)e.Row.FindControl(ddlCity); ddl.DataSource=dtCities; ddl.DataTextField=City; ddl.DataBind(); ddl.Items.FindByText(City).Selected=true; } } Note: If this post really helped you mark this answer as Accepted.