C# 使用带有LinearGradientBrush的动态前景

我第一次在做WPF应用程序

我有一个按钮，当点击将改变其前景颜色。 我觉得常规的颜色很无聊，所以我做了一些线性渐变来让它看起来更好

在C#上，我写道。 //在这里，我创建了一个线性渐变衬套，一组渐变停止点，以及我需要的渐变停止点和一个笔刷转换器，以将颜色代码#fxxx转换为颜色

        BrushConverter bc = new BrushConverter();
        public LinearGradientBrush MetallicBlue= new LinearGradientBrush();
        public GradientStopCollection BlueG = new GradientStopCollection();
        public GradientStop BGS1 = new GradientStop();
        public GradientStop BGS2 = new GradientStop();
        public GradientStop BGS3 = new GradientStop();
        public GradientStop BGS4 = new GradientStop();

//然后我定义每个渐变停止并将其添加到GradientStop集合中

            BGS1.Color = (Color)bc.ConvertFrom("#FF094AAD");
            BGS1.Offset = 0.244;
            BGS2.Color = (Color)bc.ConvertFrom("#FF0745AA");
            BGS2.Offset = 0.988;
            BGS3.Color = (Color)bc.ConvertFrom("#FF286ED1");
            BGS3.Offset = 0.5;
            BGS4.Color = (Color)bc.ConvertFrom("#FF094AAD");
            BGS4.Offset = 0.076;
            BlueG.Add(BGS1);
            BlueG.Add(BGS2);
            BlueG.Add(BGS3);
            BlueG.Add(BGS4);

//在这里，我设置了我的金属蓝属性

MetallicBlue.StartPoint = new Point(0.5, 0);
MetallicBlue.EndPoint = new Point(0.5, 1);
MetallicBlue.GradientStops = BlueG;

在我的点击事件中，当我设置前景颜色时，它将变为空白！文本消失

textBlock.Foreground = MetallicBlue;

有人能帮我吗。 我想在许多按钮上实现这一点，但它不太管用。

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我缺少什么。

A

BrushConverter

返回一个

Brush

。您应该使用

颜色转换器

。这对我来说很好：

ColorConverter cc = new ColorConverter();
LinearGradientBrush MetallicBlue = new LinearGradientBrush();
GradientStopCollection BlueG = new GradientStopCollection();
GradientStop BGS1 = new GradientStop();
GradientStop BGS2 = new GradientStop();
GradientStop BGS3 = new GradientStop();
GradientStop BGS4 = new GradientStop();

BGS1.Color = (Color)cc.ConvertFrom("#FF094AAD");
BGS1.Offset = 0.244;
BGS2.Color = (Color)cc.ConvertFrom("#FF0745AA");
BGS2.Offset = 0.988;
BGS3.Color = (Color)cc.ConvertFrom("#FF286ED1");
BGS3.Offset = 0.5;
BGS4.Color = (Color)cc.ConvertFrom("#FF094AAD");
BGS4.Offset = 0.076;
BGS4.Offset = 0.076;
BlueG.Add(BGS1);
BlueG.Add(BGS2);
BlueG.Add(BGS3);
BlueG.Add(BGS4);

MetallicBlue.StartPoint = new Point(0.5, 0);
MetallicBlue.EndPoint = new Point(0.5, 1);
MetallicBlue.GradientStops = BlueG;

textBlock.Foreground = MetallicBlue;
textBlock.Text = "Sample";
textBlock.FontSize = 40;

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A

BrushConverter

返回一个

Brush

。您应该使用

颜色转换器

。这对我来说很好：

ColorConverter cc = new ColorConverter();
LinearGradientBrush MetallicBlue = new LinearGradientBrush();
GradientStopCollection BlueG = new GradientStopCollection();
GradientStop BGS1 = new GradientStop();
GradientStop BGS2 = new GradientStop();
GradientStop BGS3 = new GradientStop();
GradientStop BGS4 = new GradientStop();

BGS1.Color = (Color)cc.ConvertFrom("#FF094AAD");
BGS1.Offset = 0.244;
BGS2.Color = (Color)cc.ConvertFrom("#FF0745AA");
BGS2.Offset = 0.988;
BGS3.Color = (Color)cc.ConvertFrom("#FF286ED1");
BGS3.Offset = 0.5;
BGS4.Color = (Color)cc.ConvertFrom("#FF094AAD");
BGS4.Offset = 0.076;
BGS4.Offset = 0.076;
BlueG.Add(BGS1);
BlueG.Add(BGS2);
BlueG.Add(BGS3);
BlueG.Add(BGS4);

MetallicBlue.StartPoint = new Point(0.5, 0);
MetallicBlue.EndPoint = new Point(0.5, 1);
MetallicBlue.GradientStops = BlueG;

textBlock.Foreground = MetallicBlue;
textBlock.Text = "Sample";
textBlock.FontSize = 40;

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是的，这正是我需要的！是的，这正是我需要的！