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[英]'SolidBrush' parameter type is not valid for formatting property 'Foreground'. Parameter name: value
[英]Using WinForms ColorDialog in WPF is giving error: 'Color' parameter type is not valid for formatting property 'Background'
此问题已在网上得到解答,我正在尝试按照这些答案进行操作,但仍然出现以下错误。 问题:我在这里可能做错了什么,我们该如何解决?
笔记:
Windows Form
ColorDialog 类来实现wpf
的类似功能WPF相关代码:
Using ....
using System.Windows.Forms; //for winforms' ColorDialog
......
private void BtnTest_Click(object sender, RoutedEventArgs e)
{
ColorDialog MyDialog = new ColorDialog(); //from Winform
MyDialog.AllowFullOpen = false;
MyDialog.ShowHelp = true;
if (MyDialog.ShowDialog() == System.Windows.Forms.DialogResult.OK)
{
try
{
TextSelection textSelection = mainRTB.Selection;
if (!textSelection.IsEmpty)
{
//Use the WPF System.Windows.Media.Brushes class instead of System.Drawing.Brushes from WinForms:
textSelection.ApplyPropertyValue(TextElement.BackgroundProperty, ColorHelper.ToSWMColor(MyDialog.Color)); //error occurs at this line
}
}
catch (Exception ex)
{
System.Diagnostics.Debug.WriteLine(ex.Message);
}
}
}
ColorHelper 类(我在同一个项目中创建):
using SDColor = System.Drawing.Color;
using SWMColor = System.Windows.Media.Color;
namespace ColorDialog_for_WPF
{
public static class ColorHelper
{
public static SWMColor ToSWMColor(this SDColor color) => SWMColor.FromArgb(color.A, color.R, color.G, color.B);
public static SDColor ToSDColor(this SWMColor color) => SDColor.FromArgb(color.A, color.R, color.G, color.B);
}
}
错误:
“颜色”参数类型对格式属性“背景”无效
Background
属性的类型是Brush
,而不是Color
。
您需要创建一个SolidColorBrush
。
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