WPF 精修篇 动态资源

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动态资源 使用 DynamicResource 关键字

静态 就是 StaticResource

原则上是 能用静态就用静态 动态会让前台界面压力很大~

动态资源引用 就是可以在后台改变资源 显示不同的样式  资源是一样的 就看关键字用什么

效果 

   




        "RectFill" EndPoint="0.5,1" StartPoint="0.5,0">




            "BurlyWood" Offset="0"/>




            "White" Offset="1"/>




        



    



    




        "{ DynamicResource RectFill}" HorizontalAlignment="Left" Height="76" Margin="85,70,0,0" Stroke="Black" VerticalAlignment="Top" Width="243">




       



        



        "R" Content="R" HorizontalAlignment="Left" Margin="377,70,0,0" VerticalAlignment="Top" Click="R_Click"/>




        "G" Content="G" HorizontalAlignment="Left" Margin="377,98,0,0" VerticalAlignment="Top" Click="G_Click"/>




        "B"  Content="B" HorizontalAlignment="Left" Margin="377,130,0,0" VerticalAlignment="Top" Click="B_Click"/>




 



    

        private void R_Click(object sender, RoutedEventArgs e)




        {



            var bursh = Resources["RectFill"];



            if (bursh is LinearGradientBrush) 



            {



                LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;



                Ibursh = new LinearGradientBrush()



                {



                    GradientStops = new GradientStopCollection() 



                    {



                        new  GradientStop(Colors.BurlyWood,0),



                        new GradientStop(Colors.Red,1)



 



                    }



                };



                Resources["RectFill"] = Ibursh;



            }



      



        }



 



        private void G_Click(object sender, RoutedEventArgs e)




        {



            var bursh = Resources["RectFill"];



            if (bursh is LinearGradientBrush)



            {



                LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;



                Ibursh = new LinearGradientBrush()



                {



                    GradientStops = new GradientStopCollection() 



                    {



                        new  GradientStop(Colors.BurlyWood,0),



                        new GradientStop(Colors.Green,1)



 



                    }



                };



                Resources["RectFill"] = Ibursh;



            }



   



        }



 



        private void B_Click(object sender, RoutedEventArgs e)




        {



            var bursh = Resources["RectFill"];



            if (bursh is LinearGradientBrush)



            {



                LinearGradientBrush Ibursh = (LinearGradientBrush)bursh;



                Ibursh = new LinearGradientBrush()



                {



                    GradientStops = new GradientStopCollection() 



                    {



                        new  GradientStop(Colors.BurlyWood,0),



                        new GradientStop(Colors.Blue,1)



 



                    }



                };



                Resources["RectFill"] = Ibursh;



            }



      



        }

WPF 精修篇 动态资源

标签：oid   object   code   word   fill   onclick   near   width   class   

原文地址：https://www.cnblogs.com/lonelyxmas/p/12075517.html