GridViewComboBoxColumn: Missing data fields: DataSource, DisplayMember, ValueMember

[Sandi Markon]

Following data fields are missing in GridViewComboBoxColumn properties: DataSource, DisplayMember, ValueMember.
Also GridViewComboBoxColumn doesn't function when I set these values programmatically in Designer.cs.

[Richard Slade]

Hello Sandi,

These properties are members of the GridViewComboBoxColumn in the latest version of the controls. Please take a look at this documentation which should help.
If you need further assistance, please let me know.
Richard

[Stefan]

Hello Sandi Markon,

Thank you for writing.

Yes, I confirm that you cannot set these properties when using the Property Builder. However, they are still available when navigating the RadGridView smart tag or when using the Visual Studio property grid. In addition, you can change them with code.

I hope this helps.

Kind regards,
Stefan
the Telerik team

[subbarayan]

hi,

   In my GridViewComboBoxColumn have displaymember = "Name", valuemember="Id"
   My problem is, i want to store the displaymember's text (Name) to the db.  but is shows only the value member (id). How to get?
help me.

[Richard Slade]

Hello,

In this cae you could make the ValueMember the "Name" also. If I have misunderstood your query please let me know.
Regards,
Richard

[subbarayan]

hi ,

     Thanks your immediate reply. I did already the same. but my requirement both valueMember(id), Displaymember (Name). what to do?

[Richard Slade]

Hello,

Here is an example for you of binding to a GridViewMultiComboColumn and then getting the changed text.

Form1 Designer File

namespace RadControlsWinFormsApp1
{
    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(284, 262);
            this.radGridView1.TabIndex = 0;
            this.radGridView1.Text = "radGridView1";
            //
            // Form1
            //
            this.AutoScaleDimensions = new System.Drawing.SizeF(6F, 13F);
            this.AutoScaleMode = System.Windows.Forms.AutoScaleMode.Font;
            this.ClientSize = new System.Drawing.Size(284, 262);
            this.Controls.Add(this.radGridView1);
            this.Name = "Form1";
            this.Text = "Form1";
            ((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;

namespace RadControlsWinFormsApp1
{
    public partial class Form1 : Form
    {
        private BindingList<Person> people = new BindingList<Person>();
        private BindingList<MyObject> myObjects = new BindingList<MyObject>();

        public Form1()
        {
            InitializeComponent();

            myObjects.Add(new MyObject(1, "My Object 1"));
            myObjects.Add(new MyObject(2, "My Object 2"));
            myObjects.Add(new MyObject(3, "My Object 3"));

            people.Add(new Person(1, "Richard", 1));
            people.Add(new Person(2, "Chris", 2));
            people.Add(new Person(3, "Peter", 3));

            this.radGridView1.AutoGenerateColumns = false;

            GridViewDecimalColumn idColumn = new GridViewDecimalColumn();
            idColumn.Name = "IdColumn";
            idColumn.HeaderText = "Id";
            idColumn.FieldName = "Id";

            GridViewTextBoxColumn nameColumn = new GridViewTextBoxColumn();
            nameColumn.Name = "nameColumn";
            nameColumn.HeaderText = "Name";
            nameColumn.FieldName = "Name";

            GridViewMultiComboBoxColumn multiColumn = new GridViewMultiComboBoxColumn();
            multiColumn.Name = "multiColumn";
            multiColumn.HeaderText = "My Object";
            multiColumn.FieldName = "MyObjectId";
            multiColumn.DataSource = myObjects;
            multiColumn.DisplayMember = "MyObjectName";
            multiColumn.ValueMember = "Id";

            this.radGridView1.Columns.Add(idColumn);
            this.radGridView1.Columns.Add(nameColumn);
            this.radGridView1.Columns.Add(multiColumn);

            this.radGridView1.DataSource = people;
            this.radGridView1.AutoSizeColumnsMode = GridViewAutoSizeColumnsMode.Fill;
            foreach (GridViewDataColumn column in this.radGridView1.Columns)
            { column.BestFit(); }

            this.radGridView1.RowsChanged += new GridViewCollectionChangedEventHandler(radGridView1_RowsChanged);
        }

        void radGridView1_RowsChanged(object sender, GridViewCollectionChangedEventArgs e)
        {
            if (e.Action == Telerik.WinControls.Data.NotifyCollectionChangedAction.ItemChanged && this.radGridView1.CurrentCell.ColumnInfo.Name == "multiColumn")
            {
                MessageBox.Show("New Text is: " + this.radGridView1.CurrentCell.Text);
            }
        }
    }

    class Person
    {
        public Person()
        { }

        public Person(int id, string name, int myObjectId)
        {
            this.Id = id;
            this.Name = name;
            this.MyObjectId = myObjectId;
        }

        public int Id { get; set; }
        public string Name { get; set; }
        public int MyObjectId { get; set; }
    }

    class MyObject
    {
        public MyObject()
        { }

        public MyObject(int id, string myObjectName)
        {
            this.Id = id;
            this.MyObjectName = myObjectName;
        }

        public int Id { get; set; }
        public string MyObjectName { get; set; }
    }
}

Hope that helps
Richard