ColorPalette.CreateGradientPalette(String, ColorCollection) Method
Returns a palette filled with gradient colors from specified base colors.
Namespace: DevExpress.Xpf.Editors
Assembly: DevExpress.Xpf.Core.v18.2.dll
Declaration
public static ColorPalette CreateGradientPalette(
string name,
ColorCollection source
)
Public Shared Function CreateGradientPalette(
name As String,
source As ColorCollection
) As ColorPalette
Parameters
Returns
The CreateGradientPalette method creates a new palette with the specified name and generates gradient colors for each base color in source.
Example
This example shows how to create custom palettes and display them within a ColorEdit control.
Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
Imports System.Configuration
Imports System.Data
Imports System.Linq
Imports System.Windows
Namespace DXEditors_ColorEdit
''' <summary>
''' Interaction logic for App.xaml
''' </summary>
Partial Public Class App
Inherits Application
End Class
End Namespace
<Window x:Class="DXEditors_ColorEdit.MainWindow" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" Title="MainWindow" Height="400" Width="497" xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors" xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/core">
<Grid>
<Grid.Resources>
<ResourceDictionary>
<dxc:ColorToBrushConverter x:Key="ColorToBrushConverter" />
</ResourceDictionary>
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto" />
<ColumnDefinition />
</Grid.ColumnDefinitions>
<GroupBox Header="Text Color" Grid.Column="0" HorizontalAlignment="Left" Margin="3" Name="groupBox1" VerticalAlignment="Top">
<Grid>
<dxe:ColorEdit Name="colorEdit1" Color="Green" />
</Grid>
</GroupBox>
<GroupBox HorizontalAlignment="Stretch" Header="Text Box" Grid.Column="1" Margin="3" Name="groupBox2" VerticalAlignment="Top">
<Grid>
<TextBox Text="Sample text..." Grid.Column="1" Foreground="{Binding Path=Color, ElementName=colorEdit1, Converter={StaticResource ColorToBrushConverter}}" Height="100" Margin="3" Name="textBox1" VerticalAlignment="Top" />
</Grid>
</GroupBox>
</Grid>
</Window>
<Application x:Class="DXEditors_ColorEdit.App" xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation" xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml" StartupUri="MainWindow.xaml">
<Application.Resources>
</Application.Resources>
</Application>
Imports Microsoft.VisualBasic
Imports System
Imports System.Collections.Generic
Imports System.Linq
Imports System.Text
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Data
Imports System.Windows.Documents
Imports System.Windows.Input
Imports System.Windows.Media
Imports System.Windows.Media.Imaging
Imports System.Windows.Navigation
Imports System.Windows.Shapes
Imports DevExpress.Xpf.Editors
Namespace DXEditors_ColorEdit
''' <summary>
''' Interaction logic for MainWindow.xaml
''' </summary>
Partial Public Class MainWindow
Inherits Window
Public Sub New()
InitializeComponent()
' Removes the 'Standard Colors' palette.
colorEdit1.Palettes.Remove(colorEdit1.Palettes("Standard Colors"))
' Adds a custom gradient palette.
colorEdit1.Palettes.Add(CustomPalette.CreateGradientPalette("Apex Colors", PredefinedColorCollections.Apex))
' Adds a new palette with three custom RGB colors.
Dim customColors As List(Of Color) = New List(Of Color)
customColors.Add(Color.FromRgb(150, 18, 30))
customColors.Add(Color.FromRgb(20, 40, 20))
customColors.Add(Color.FromRgb(88, 73, 29))
Dim palette As CustomPalette = New CustomPalette("Custom RGB Colors", customColors)
colorEdit1.Palettes.Add(palette)
End Sub
End Class
End Namespace
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
using System.Windows;
using System.Windows.Controls;
using System.Windows.Data;
using System.Windows.Documents;
using System.Windows.Input;
using System.Windows.Media;
using System.Windows.Media.Imaging;
using System.Windows.Navigation;
using System.Windows.Shapes;
using DevExpress.Xpf.Editors;
namespace DXEditors_ColorEdit {
/// <summary>
/// Interaction logic for MainWindow.xaml
/// </summary>
public partial class MainWindow : Window {
public MainWindow() {
InitializeComponent();
// Removes the 'Standard Colors' palette.
colorEdit1.Palettes.Remove(colorEdit1.Palettes["Standard Colors"]);
// Adds a custom gradient palette.
colorEdit1.Palettes.Add(CustomPalette.CreateGradientPalette("Apex Colors", PredefinedColorCollections.Apex));
// Adds a new palette with three custom RGB colors.
colorEdit1.Palettes.Add(
new CustomPalette("Custom RGB Colors",
new List<Color>() {
Color.FromRgb(150, 18, 30),
Color.FromRgb(20, 40, 20),
Color.FromRgb(88, 73, 29) }));
}
}
}
<Window x:Class="DXEditors_ColorEdit.MainWindow"
xmlns="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
xmlns:x="http://schemas.microsoft.com/winfx/2006/xaml"
Title="MainWindow" Height="400" Width="497"
xmlns:dxe="http://schemas.devexpress.com/winfx/2008/xaml/editors"
xmlns:dxc="http://schemas.devexpress.com/winfx/2008/xaml/core">
<Grid>
<Grid.Resources>
<ResourceDictionary>
<dxc:ColorToBrushConverter x:Key="ColorToBrushConverter"/>
</ResourceDictionary>
</Grid.Resources>
<Grid.ColumnDefinitions>
<ColumnDefinition Width="Auto"/>
<ColumnDefinition/>
</Grid.ColumnDefinitions>
<GroupBox Header="Text Color" Grid.Column="0" HorizontalAlignment="Left"
Margin="3" Name="groupBox1" VerticalAlignment="Top">
<Grid>
<dxe:ColorEdit Name="colorEdit1" Color="Green"/>
</Grid>
</GroupBox>
<GroupBox HorizontalAlignment="Stretch" Header="Text Box" Grid.Column="1"
Margin="3" Name="groupBox2" VerticalAlignment="Top">
<Grid>
<TextBox Text="Sample text..." Grid.Column="1"
Foreground="{Binding Path=Color, ElementName=colorEdit1, Converter={StaticResource ColorToBrushConverter}}"
Height="100" Margin="3"
Name="textBox1" VerticalAlignment="Top" />
</Grid>
</GroupBox>
</Grid>
</Window>
The following code snippets (auto-collected from DevExpress Examples) contain references to the CreateGradientPalette(String, ColorCollection) method.
Note
The algorithm used to collect these code examples remains a work in progress. Accordingly, the links and snippets below may produce inaccurate results. If you encounter an issue with code examples below, please use the feedback form on this page to report the issue.
See Also