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LinearGradientBrush Constructor

Initializes a new instance of the LinearGradientBrush class.

This member is overloaded. For complete information about this member, including syntax, usage, and examples, click a name in the overload list.

  Name Description
Public method LinearGradientBrush() Initializes a new instance of the LinearGradientBrush class.
Public method LinearGradientBrush(GradientStopCollection) Initializes a new instance of the LinearGradientBrush class that has the specified gradient stops.
Public method LinearGradientBrush(GradientStopCollection, Double) Initializes a new instance of the LinearGradientBrush class that has the specified GradientStopCollection and angle.
Public method LinearGradientBrush(Color, Color, Double) Initializes a new instance of the LinearGradientBrush class that has the specified start Color, end Color, and angle.
Public method LinearGradientBrush(GradientStopCollection, Point, Point) Initializes a new instance of the LinearGradientBrush class that has the specified gradient stops, StartPoint, and EndPoint.
Public method LinearGradientBrush(Color, Color, Point, Point) Initializes a new instance of the LinearGradientBrush class that has the specified start Color, end Color, StartPoint, and EndPoint.
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The MappingMode of the brush is initialized to RelativeToBoundingBox.

This example shows how to use the LinearGradientBrush class to paint an area with a linear gradient. In the following example, the Fill of a Rectangle is painted with a diagonal linear gradient that transitions from yellow to red to blue to lime green.

<!-- This rectangle is painted with a diagonal linear gradient. -->
<Rectangle Width="200" Height="100">
  <Rectangle.Fill>
    <LinearGradientBrush StartPoint="0,0" EndPoint="1,1">
      <GradientStop Color="Yellow" Offset="0.0" />
      <GradientStop Color="Red" Offset="0.25" />
      <GradientStop Color="Blue" Offset="0.75" />
      <GradientStop Color="LimeGreen" Offset="1.0" />
    </LinearGradientBrush>
  </Rectangle.Fill>
</Rectangle>
Rectangle diagonalFillRectangle = new Rectangle();
diagonalFillRectangle.Width = 200;
diagonalFillRectangle.Height = 100;

// Create a diagonal linear gradient with four stops.   
LinearGradientBrush myLinearGradientBrush =
    new LinearGradientBrush();
myLinearGradientBrush.StartPoint = new Point(0,0);
myLinearGradientBrush.EndPoint = new Point(1,1);
myLinearGradientBrush.GradientStops.Add(
    new GradientStop(Colors.Yellow, 0.0));
myLinearGradientBrush.GradientStops.Add(
    new GradientStop(Colors.Red, 0.25));                
myLinearGradientBrush.GradientStops.Add(
    new GradientStop(Colors.Blue, 0.75));        
myLinearGradientBrush.GradientStops.Add(
    new GradientStop(Colors.LimeGreen, 1.0));

// Use the brush to paint the rectangle.
diagonalFillRectangle.Fill = myLinearGradientBrush;

The following illustration shows the gradient created by the previous example.

Diagonal linear gradient

To create a horizontal linear gradient, change the StartPoint and EndPoint of the LinearGradientBrush to (0,0.5) and (1,0.5). In the following example, a Rectangle is painted with a horizontal linear gradient.

<!-- This rectangle is painted with a horizontal linear gradient. -->
<Rectangle Width="200" Height="100">
  <Rectangle.Fill>
    <LinearGradientBrush StartPoint="0,0.5" EndPoint="1,0.5">
      <GradientStop Color="Yellow" Offset="0.0" />
      <GradientStop Color="Red" Offset="0.25" />
      <GradientStop Color="Blue" Offset="0.75" />
      <GradientStop Color="LimeGreen" Offset="1.0" />
    </LinearGradientBrush>
  </Rectangle.Fill>
</Rectangle>
            Rectangle horizontalFillRectangle = new Rectangle();
            horizontalFillRectangle.Width = 200;
            horizontalFillRectangle.Height = 100;

            // Create a horizontal linear gradient with four stops.   
            LinearGradientBrush myHorizontalGradient =
                new LinearGradientBrush();
            myHorizontalGradient.StartPoint = new Point(0,0.5);
            myHorizontalGradient.EndPoint = new Point(1,0.5);
            myHorizontalGradient.GradientStops.Add(
                new GradientStop(Colors.Yellow, 0.0));
            myHorizontalGradient.GradientStops.Add(
                new GradientStop(Colors.Red, 0.25));                
            myHorizontalGradient.GradientStops.Add(
                new GradientStop(Colors.Blue, 0.75));        
            myHorizontalGradient.GradientStops.Add(
                new GradientStop(Colors.LimeGreen, 1.0));

            // Use the brush to paint the rectangle.
            horizontalFillRectangle.Fill = myHorizontalGradient; 

The following illustration shows the gradient created by the previous example.

A horizontal linear gradient

To create a vertical linear gradient, change the StartPoint and EndPoint of the LinearGradientBrush to (0.5,0) and (0.5,1). In the following example, a Rectangle is painted with a vertical linear gradient.

<!-- This rectangle is painted with a vertical gradient. -->
<Rectangle Width="200" Height="100">
  <Rectangle.Fill>
    <LinearGradientBrush StartPoint="0.5,0" EndPoint="0.5,1">
      <GradientStop Color="Yellow" Offset="0.0" />
      <GradientStop Color="Red" Offset="0.25" />
      <GradientStop Color="Blue" Offset="0.75" />
      <GradientStop Color="LimeGreen" Offset="1.0" />
    </LinearGradientBrush>
  </Rectangle.Fill>
</Rectangle>
Rectangle verticalFillRectangle = new Rectangle();
verticalFillRectangle.Width = 200;
verticalFillRectangle.Height = 100;

// Create a vertical linear gradient with four stops.   
LinearGradientBrush myVerticalGradient =
    new LinearGradientBrush();
myVerticalGradient.StartPoint = new Point(0.5,0);
myVerticalGradient.EndPoint = new Point(0.5,1);
myVerticalGradient.GradientStops.Add(
    new GradientStop(Colors.Yellow, 0.0));
myVerticalGradient.GradientStops.Add(
    new GradientStop(Colors.Red, 0.25));                
myVerticalGradient.GradientStops.Add(
    new GradientStop(Colors.Blue, 0.75));        
myVerticalGradient.GradientStops.Add(
    new GradientStop(Colors.LimeGreen, 1.0));

// Use the brush to paint the rectangle.
verticalFillRectangle.Fill = myVerticalGradient;  

The following illustration shows the gradient created by the previous example.

Vertical linear gradient
Note Note

The examples in this topic use the default coordinate system for setting start points and end points. The default coordinate system is relative to a bounding box: 0 indicates 0 percent of the bounding box, and 1 indicates 100 percent of the bounding box. You can change this coordinate system by setting the MappingMode property to the value BrushMappingMode.Absolute. An absolute coordinate system is not relative to a bounding box. Values are interpreted directly in local space.

For additional examples, see Brushes Sample. For more information about gradients and other types of brushes, see Painting with Solid Colors and Gradients Overview.

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