You can add a dialog box launcher button to the Ribbon group using the smart designer, Properties window, or Code Editor.

To Add a Launcher Button Using the Smart Designer

Complete the following steps:

1. Using your mouse pointer, click the Ribbon group and hover over the group's caption area to enable the following floating toolbar:
   
2. Click the Add Launcher Button button.

To Add a Launcher Button Using the Properties Window

Optionally, you can add a launcher button to the Ribbon group using the Properties window. Click the group on the Form to reveal the group properties in the Properties window. Locate the RibbonGroup.HasLauncherButton property's drop-down arrow and select True from the drop-down list.

To Add a Launcher Button Programmatically:

To add a launcher button to the group (RibbonGroup1), add the following code to your project:

To write code in Visual Basic

' type the Imports directive for the namespace
Imports C1.Win.C1Ribbon
 
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
    ' add launcher button
    Me.RibbonGroup1.HasLauncherButton = True
End Sub

To write code in C#

// type the using directive for the namespace
using C1.Win.C1Ribbon;
 
private void Form1_Load(object sender, System.EventArgs e)
{
    // add launcher button
    this.ribbonGroup1.HasLauncherButton = true;
}