datagridviewcombobox event

Question

Hi,

i have a datagridview with datagridviewcombobox. How do i insert a event when user selects a value from the datagridviewcombobox? trying to bounddata for 2nd column of the datagridview based on what user selects from the datagridviewcombobox which is in the 1st column.

Kirtan Patel · Answer

Friend , Here is your Solution please check "Do you like this answer" check box if it helps you :) you need to build your Own Event Delegate to Handle this Combobox Changed Event in DataGridView as it Does not have that event private DataGridView _dataGridView; private EventHandler _comboBoxSelectDelegate; public Example() { // setup the datagridview here. // hook up editing control showing event _dataGridView.EditingControlShowing += new DataGridViewEditingControlShowingEventHandler (_dataGridView_EditingControlShowing); // create a delegate for the method that will handle the event _comboBoxSelectDelegate = new EventHandler (combo_SelectionChangeCommitted); } void _dataGridView_EditingControlShowing( object sender, DataGridViewEditingControlShowingEventArgs e) { // get the control from the event args. ComboBox combo = e.Control as ComboBox ; if (combo != null ) { // remove the event subscription if it exists. combo.SelectionChangeCommitted -= comboSelectDelegate; // add a subscription to the event combo.SelectionChangeCommitted += comboSelectDelegate; } } void combo_SelectionChangeCommitted( object sender, EventArgs e) { // handle the event. ComboBox combo = sender as ComboBox ; if (combo != null ) { MessageBox .Show( string .Format( "The combobox selected index is: {0}" , combo.SelectedIndex) ); } }

Aaron · Answer

hi its still blank.. here's how i declare my datagridview: // gridEquipment (Datagridview) // this.gridEquipment.AutoSizeColumnsMode = System.Windows.Forms.DataGridViewAutoSizeColumnsMode.Fill; this.gridEquipment.ClipboardCopyMode = System.Windows.Forms.DataGridViewClipboardCopyMode.EnableWithoutHeaderText; this.gridEquipment.ColumnHeadersHeightSizeMode = System.Windows.Forms.DataGridViewColumnHeadersHeightSizeMode.AutoSize; this.gridEquipment.Columns.AddRange(new System.Windows.Forms.DataGridViewColumn[] { this.EquipmentTag, this.Desc, this.EquipmentCode, this.EquipmentCodeDesc, this.SpecCode, this.ROQty, this.UOM}); this.gridEquipment.Cursor = System.Windows.Forms.Cursors.Arrow; this.gridEquipment.EditMode = System.Windows.Forms.DataGridViewEditMode.EditOnEnter; this.gridEquipment.Enabled = false; this.gridEquipment.ImeMode = System.Windows.Forms.ImeMode.Off; this.gridEquipment.Location = new System.Drawing.Point(9, 177); this.gridEquipment.MultiSelect = false; this.gridEquipment.Name = "gridEquipment"; this.gridEquipment.ScrollBars = System.Windows.Forms.ScrollBars.None; this.gridEquipment.SelectionMode = System.Windows.Forms.DataGridViewSelectionMode.FullRowSelect; this.gridEquipment.ShowEditingIcon = false; this.gridEquipment.Size = new System.Drawing.Size(992, 331); this.gridEquipment.TabIndex = 6; this.gridEquipment.EditingControlShowing+= new System.Windows.Forms.DataGridViewEditingControlShowingEventHandler(gridEquip_EditingControlShowing); // // EquipmentTag (datagridviewcomboboxColumn) // this.EquipmentTag.AutoComplete = false; this.EquipmentTag.DisplayStyle = System.Windows.Forms.DataGridViewComboBoxDisplayStyle.ComboBox; this.EquipmentTag.HeaderText = "Equipment Tag"; this.EquipmentTag.Name = "EquipmentTag"; i binded a data from sql to EquipmentTag which has combo box. the name EquipmentTag belongs to the column. but the combobox in the cell is not name. is there a way to name it?

Kirtan Patel · Answer

ok try like this ComboBox x = ( ComboBox )sender; if (combo != null ) { MessageBox .Show(x.Name); } let me know what you get in msg box ..

Aaron · Answer

ya i did this: private void comBoxEquipSelectionChange(object sender, EventArgs e) { ComboBox combo = sender as ComboBox; if (combo != null) { MessageBox.Show(string.Format("The combobox selected index is: {0}", combo.SelectedIndex)); MessageBox.Show(combo.Name); } } the popup is blank.

Kirtan Patel · Answer

I n following Write Code to check which combo box is Accessed void combo_SelectionChangeCommitted( object sender, EventArgs e) { // handle the event. ComboBox combo = sender as ComboBox ; if (combo != null ) { MessageBox .Show( string .Format( "The combobox selected index is: {0}" , combo.SelectedIndex) ); //Write it Like Below if(combo.Name == "somthing") { // do somthing ; } else if(combo.Name == "another") { // do somthing ; } } }

Aaron · Answer

thanks again. i'm using dataGridViewComboBoxColumn for my combo boxes (using design view to generate). i did a combo.name like what you mention it appears to be blank.

Kirtan Patel · Answer

in SelectionChangeCommitted we are also getting Sender Object you can differentiate which combo box fired event by if(combo.Name == somthing) { // do somthing ; } else if(combo.Name == "another") { // do somthing ; }

Aaron · Answer

Thanks for the help. I have a few combo boxes on the grid and different columns. how do i differentiate which combo box i click?