VB.NET中的线性渐变画笔 [英] Linear Gradient Brush in VB.NET

问题描述

嗨



任何人都可以提供帮助。



我在WPF窗口上有几个按钮当我们使用属性框将它们放置在表单上时，我使用了水平线性渐变Bursh。



单击按钮时我想要渐变的颜色为了改变，我不再希望看到黄金到白色，点击之前的颜色，我现在想要从绿色变为白色。



我我正在尝试制作画笔时遇到实际问题，我正在导入System.Drawing和System.Drawing.Drawing2D，我正在尝试使用的代码如下。



< pre lang =vb> Dim linGrBrush As New LinearGradientBrush（ New System.Drawing.Point（ 0 ， 1 ），新 System.Drawing.Point（ 0 ， 0 ），System.Drawing.Color.ForestGreen，System.Drawing.Color.White）

如果 ntControl.IntroComp = True 那么
btnLesson1.Visibility = Windows.Visibility.Visible
btnIntroduction.Background = linGrBrush
End 如果

我得到的错误说类型System.Drawing.Drawing2D.LinearGradientBrush不能转换为System.Windows.MediaBrush。



如果我所犯的错误很简单，我很抱歉，我对WPF很新，我想做的就是改变按钮的背景。



任何帮助将不胜感激。



亲切的问候



Dave

解决方案

你好，



这里是一个链接这可以帮助你解决问题，因为它帮助了我。



http://www.ultimateprogrammingtutorials.info/2012/10/how-to-make-custom- button-in-vbnet.html



好​​运！

我不知道知道这个错误，但我在微软研究它，我找到了这个链接。它可能对你有用：

http://msdn.microsoft.com/en-us/library/system.drawing.drawing2d.lineargradientbrush%28v = vs.110％29.aspx？cs-save-lang = 1& cs-lang = vb＃code-snippet-1 [ ^ ]

问候，

Hi

Can anyone help.

I have a several buttons on a WPF window that I have used a horizontal Linear Gradient Bursh on when placing them on the form, using the property box.

When the button has been clicked I want the color of the gradient to change, I no longer want to to appear as Gold to White, the colour before it is clicked, I now want to to go from Green to White.

I am having real problems trying to make the brush, I am importing System.Drawing and System.Drawing.Drawing2D and the code I am trying to use is below.

Dim linGrBrush As New LinearGradientBrush(New System.Drawing.Point(0, 1), New System.Drawing.Point(0, 0), System.Drawing.Color.ForestGreen, System.Drawing.Color.White)

If ntControl.IntroComp = True Then
    btnLesson1.Visibility = Windows.Visibility.Visible
    btnIntroduction.Background = linGrBrush
End If

The error I am getting says that type System.Drawing.Drawing2D.LinearGradientBrush cannot be converted to System.Windows.MediaBrush.

I am sorry if the error I am making is simple but I am pretty new to WPF all I want to do is change the background of the button.

Any Help would be much appreciated.

Kind Regards

Dave

解决方案

Hello there,

Here is a link that may help you with your problem as it helped me.

http://www.ultimateprogrammingtutorials.info/2012/10/how-to-make-custom-button-in-vbnet.html

Good Luck!

Hi,
I do not know about this error, but i study about it in Microsoft, and i find this link. it might be useful for you:
http://msdn.microsoft.com/en-us/library/system.drawing.drawing2d.lineargradientbrush%28v=vs.110%29.aspx?cs-save-lang=1&cs-lang=vb#code-snippet-1[^]
Regards,

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