multiple selection in a combobox

Question

4.00/5 (1 vote)

See more:

Hi
I have combobox that is filled by a linq query
I want to have the choice to do multiple selection in this ComboBox

this is what I have done:

private void cmbECUType_SelectedIndexChanged(object sender, EventArgs e)
{
    string cmbVal = cmbModel.SelectedValue.ToString();
    string Id = cmbVal.Substring(0, 3);
    string Model = cmbVal.Substring(4, cmbVal.Length - 4);
    string fileName = string.Empty;
    string Val = cmbECUType.SelectedValue.ToString();

    LINQSQLDataContext db = new LINQSQLDataContext();
    cmbECUPartNumber.DataSource = (from a in db.InfoProg_wiTECH_Associas
                                   where
                                       a.Model == Model &&
                                       a.ModelID == Id &&
                                       a.Acr == Val
                                   join g in db.InfoProg_wiTECH_Globals
                                    on a.KeyJoined equals g.NomeFile
                                   select (g.a+ " - " + g.b+ " - "
                                          + g.c+ " - " + g.d)
                                          ).Distinct();
    cmbECUPartNumber.Text = "     - Choose... -";
}

now I have my combox filled,but how can I add checkboxes?

Posted 5-May-15 2:32am

Lalyka

Updated 5-May-15 2:42am

Tomas Takac

v2

Add a Solution

3 solutions

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

CHill60 · Accepted Answer · 2015-05-05T02:41:00

Solution 1

See solution 1 on this post - Multi Selection inside a combo box!!![^] and this CP article CheckBox ComboBox Extending the ComboBox Class and Its Items[^]

Posted 5-May-15 2:41am

CHill60

Comments

Sergey Alexandrovich Kryukov 5-May-15 11:34am

5ed.
—SA

Sascha Lefèvre 5-May-15 11:47am

Thank you, Sergey.

Sascha Lefèvre 7-May-15 3:18am

lol :-))) just imagine my previous reply-comment one answer below

CHill60 7-May-15 3:59am

I did chuckle - at least SA got his thank you ;-p

Sascha Lefèvre 7-May-15 4:24am

Glad I could entertain you ;-)

Sergey Alexandrovich Kryukov 7-May-15 9:10am

Thank you. :-)
—SA

Maciej Los 7-May-15 2:13am

5ed!

Sergey Alexandrovich Kryukov 7-May-15 9:08am

Thank you, Maciej.
—SA

Sascha Lefèvre · Accepted Answer · 2015-05-05T02:45:00

The standard ComboBox doesn't offer the functionality of CheckBoxes. You need to either build your own custom control or search for an available solution. Here are two Codeproject-articles presenting solutions for this:

CheckBox ComboBox Extending the ComboBox Class and Its Items[^]
A ComboBox with a CheckedListBox as a Dropdown[^]

If none of these should fit your needs, you should see what else Google can offer you:
https://www.google.com/search?q=c%23+combobox+with+checkboxes&ie=utf-8&oe=utf-8[^]

Mantu Singh · Accepted Answer · 2015-05-05T02:57:00

You can use Checkboxlist control a small demo below modify it a/c to ur requirement

C#

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;

namespace EgApp
{
    public partial class Form1 : Form
    {
        public Form1()
        {
            InitializeComponent();
        }

        private void button1_Click(object sender, EventArgs e)
        {

            checkedListBox1.Items.Add(textBox1.Text);
        }


    }
}

multiple selection in a combobox

3 solutions

Solution 1

Solution 2

Solution 3

Add your solution here

Preview 0