Hello Bruno,
Please se this sample. It gives you two options, a standard combo column, or the one I prefer is a GridViewMultiColumnCombo.
You can paste this directly into a new project
Designer File
partial class Form1
{
/// <summary>
/// Required designer variable.
/// </summary>
private System.ComponentModel.IContainer components;
/// <summary>
/// Clean up any resources being used.
/// </summary>
/// <param name="disposing">true if managed resources should be disposed; otherwise, false.</param>
protected override void Dispose(bool disposing)
{
if (disposing && (components != null))
{
components.Dispose();
}
base.Dispose(disposing);
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.radGridView1 = new Telerik.WinControls.UI.RadGridView();
((System.ComponentModel.ISupportInitialize)(this.radGridView1)).BeginInit();
this.SuspendLayout();
//
// radGridView1
//
this.radGridView1.Dock = System.Windows.Forms.DockStyle.Fill;
this.radGridView1.Location = new System.Drawing.Point(0, 0);
this.radGridView1.Name = "radGridView1";
this.radGridView1.Size = new System.Drawing.Size(469, 262);
this.radGridView1.TabIndex = 0;
this.radGridView1.Text = "radGridView1";
this.radGridView1.CellEditorInitialized += new Telerik.WinControls.UI.GridViewCellEventHandler(this.radGridView1_CellEditorInitialized);
//
// Form1
//
this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
this.ClientSize = new System.Drawing.Size(469, 262);
this.Controls.Add(this.radGridView1);
this.Name = "Form1";
this.Text = "Form1";
this.Load += new System.EventHandler(this.Form1_Load);
((System.ComponentModel.ISupportInitialize)(this.radGridView1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private Telerik.WinControls.UI.RadGridView radGridView1;
}
Form1.cs
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using Telerik.WinControls.UI;
public partial class Form1 : Form
{
private BindingList<Product> products = new BindingList<Product>();
private BindingList<Vat> vatRates = new BindingList<Vat>();
public Form1()
{
InitializeComponent();
vatRates.Add(new Vat("Standard", 20));
vatRates.Add(new Vat("Low Rate", 12));
vatRates.Add(new Vat("Zero Rate", 0));
products.Add(new Product("Paracetamol", 20));
products.Add(new Product("Ibuprohen", 12));
products.Add(new Product("Calpol", 0));
}
private void Form1_Load(object sender, EventArgs e)
{
this.radGridView1.AutoGenerateColumns = false;
this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
GridViewTextBoxColumn nameColumn = new GridViewTextBoxColumn();
nameColumn.HeaderText = "Name";
nameColumn.Name = "Name";
nameColumn.FieldName = "Name";
GridViewComboBoxColumn rateColumn = new GridViewComboBoxColumn();
rateColumn.HeaderText = "Vat Rate";
rateColumn.FieldName = "VatRate";
rateColumn.DataSource = vatRates;
rateColumn.DisplayMember = "VatRate";
rateColumn.ValueMember = "VatRate";
// or use a MultiComboColumn
GridViewMultiComboBoxColumn rateColumnCombo = new GridViewMultiComboBoxColumn();
rateColumnCombo.HeaderText = "Vat Rate";
rateColumnCombo.FieldName = "VatRate";
rateColumnCombo.DataSource = vatRates;
rateColumnCombo.DisplayMember = "VatRate";
rateColumnCombo.ValueMember = "VatRate";
this.radGridView1.Columns.Add(nameColumn);
this.radGridView1.Columns.Add(rateColumn);
this.radGridView1.Columns.Add(rateColumnCombo);
this.radGridView1.DataSource = products;
}
private void radGridView1_CellEditorInitialized(object sender, GridViewCellEventArgs e)
{
if (e.ActiveEditor is RadMultiColumnComboBoxElement)
{
RadMultiColumnComboBoxElement editor = (RadMultiColumnComboBoxElement)e.ActiveEditor;
editor.EditorControl.BestFitColumns();
}
}
}
public class Product
{
public Product(string name, decimal vatRate)
{
this.Name = name; this.VatRate = vatRate;
}
public string Name
{ get; set; }
public decimal VatRate
{ get; set; }
}
public class Vat
{
public Vat(string name, decimal vatRate)
{
this.Name = name; this.VatRate = vatRate;
}
public string Name
{ get; set; }
public decimal VatRate
{ get; set; }
}
Hope that helps
Richard