カラーピッカー

A color picker is a button which when clicked displays a drop-down color palette. The user can select a specific color from the preset palette by clicking the color picker's drop-down arrow.

Color picker

Adding ColorPicker at Design-Time

The Ribbon ColorPicker can be added at design-time using the Ribbon Group Floating Toolbar or RibbonGroup Items Collection Editor. Also, you can customize the look of the Ribbon ColorPicker by using ColorPicker's Floating ToolBar or editing properties in the Properties Window. Refer this topic for detailed information on floating toolbars.

This image below shows the floating toolbar of ColorPicker.

Floating toolbar of ribbon colorpicker

Adding ColorPicker via Code

A ColorPicker can also be added to the C1Ribbon control through the code using the RibbonColorPicker class. This is depicted in the code below:

Visual Basic
C#

Visual Basic

Dim pathIcon = New C1PathIcon With {
    .AllowSmoothing = False,
    .Data = "M-2.7755575615628892e-17,18.89795939167988 h24 v5.142857098579968 h-24 z",
    .Size = New Size(16, 16),
    .Stroke = Color.Empty,
    .Color = Color.Red
}
Dim compositeIcon = New C1CompositeIcon()
compositeIcon.Icons.Add(New C1BitmapIcon("FontColor", New Size(16, 16), Color.Transparent, "Preset_SmallImages", -1))
compositeIcon.Icons.Add(pathIcon)
compositeIcon.Size = New Size(16, 16)
Dim colorPicker As RibbonColorPicker = New RibbonColorPicker()
colorPicker.IconSet.Add(compositeIcon)
colorPicker.ToolTip = "Color Picker"
ribbonGroup.Items.Add(colorPicker)

var pathIcon = new C1PathIcon
{
    AllowSmoothing = false,
    Data = "M-2.7755575615628892e-17,18.89795939167988 h24 v5.142857098579968 h-24 z",
    Size = new Size(16, 16),
    Stroke = Color.Empty,
    Color = Color.Red
};
var compositeIcon = new C1CompositeIcon();
compositeIcon.Icons.Add(new C1BitmapIcon("FontColor", new Size(16, 16), Color.Transparent, "Preset_SmallImages", -1));
compositeIcon.Icons.Add(pathIcon);
compositeIcon.Size = new Size(16, 16);
RibbonColorPicker colorPicker = new RibbonColorPicker();
colorPicker.IconSet.Add(compositeIcon);
colorPicker.ToolTip = "Color Picker";
ribbonGroup.Items.Add(colorPicker);

The following code shows how you can add a custom colorpicker icon.

Visual Basic
C#

Visual Basic

Dim pathIcon = New C1PathIcon With {
    .AllowSmoothing = False,
    .Data = "M-2.7755575615628892e-17,18.89795939167988 h24 v5.142857098579968 h-24 z",
    .Size = New Size(16, 16),
    .Stroke = Color.Empty,
    .Color = Color.Red
}
Dim compositeIcon = New C1CompositeIcon()
compositeIcon.Icons.Add(New C1BitmapIcon("FontColor", New Size(16, 16), Color.Transparent, Image.FromFile("images\fontcolor.png")))
compositeIcon.Icons.Add(pathIcon)
compositeIcon.Size = New Size(16, 16)
Dim colorPicker As RibbonColorPicker = New RibbonColorPicker()
colorPicker.IconSet.Add(compositeIcon)
colorPicker.ToolTip = "Color Picker"
ribbonGroup.Items.Add(colorPicker)

//RibbonForm にカスタム RibbonColorPicker を追加します。
var pathIcon = new C1PathIcon
{
    AllowSmoothing = false,
    Data = "M-2.7755575615628892e-17,18.89795939167988 h24 v5.142857098579968 h-24 z",
    Size = new Size(16, 16),
    Stroke = Color.Empty,
    Color = Color.Red
};
var compositeIcon = new C1CompositeIcon();
compositeIcon.Icons.Add(new C1BitmapIcon("FontColor", new Size(16, 16), Color.Transparent, Image.FromFile(@"images\fontcolor.png")));
compositeIcon.Icons.Add(pathIcon);
compositeIcon.Size = new Size(16, 16);            
RibbonColorPicker colorPicker = new RibbonColorPicker();
colorPicker.IconSet.Add(compositeIcon);
colorPicker.ToolTip = "Color Picker";
ribbonGroup.Items.Add(colorPicker);

You can also change the default color of the Ribbon ColorPicker:

Note how the appearance of the color picker has changed:

A snapshot of colorpicker in aquamarine color.

Changing ColorPicker Theme Colors

The RibbonColorPicker item has two sections the Theme Colors and Standard Colors. Note that by default, the Color Picker uses the 'Office' theme for the Theme Color section, while the Standard Color section remains the same. But the user can change the Theme Colors by modifying the OfficeColorPalette property in the Properties window at design-time.

Color palette

You can also change the theme programmatically using the OfficeColorPalette property of RibbonColorPicker class.

Visual Basic
C#