Microsoft .NET Desktop Guide

https://learn.microsoft.com/en-us/dotnet/desktop/
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### Reflection Example Class Setup

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/painting-with-images-drawings-and-visuals

Initializes the page and stack panel for the reflection example in VB.NET.

```vbnet
Imports System.Windows
Imports System.Windows.Data
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Media.Effects
Imports System.Windows.Media.Imaging
Imports System.IO
Imports System.Collections.ObjectModel
Imports System.Windows.Shapes
Namespace SDKSample
    Partial Public Class ReflectionExample
        Inherits Page
        Public Sub New()
            ' Create a name scope for the page.
            NameScope.SetNameScope(Me, New NameScope())

            Me.Background = Brushes.Black
            Dim myStackPanel As New StackPanel()
            myStackPanel.Margin = New Thickness(50)
```

--------------------------------

### DataGridViewBand manipulation setup in C++/CLI

Source: https://learn.microsoft.com/en-us/dotnet/desktop/winforms/controls/how-to-manipulate-bands-in-the-windows-forms-datagridview-control

This example initializes a form with a DataGridView and several buttons to demonstrate band manipulation properties.

```cpp
#using <System.Drawing.dll>
#using <System.dll>
#using <system.windows.forms.dll>
#using <system.drawing.dll>

using namespace System::Drawing;
using namespace System::Windows::Forms;
using namespace System;
using namespace System::Collections;
public ref class DataGridViewBandDemo: public Form
{
private:

#pragma region S " form setup " 

public:
   DataGridViewBandDemo()
   {
      Button1 = gcnew Button;
      Button2 = gcnew Button;
      Button3 = gcnew Button;
      Button4 = gcnew Button;
      Button5 = gcnew Button;
      Button6 = gcnew Button;
      Button7 = gcnew Button;
      Button8 = gcnew Button;
      Button9 = gcnew Button;
      Button10 = gcnew Button;
      FlowLayoutPanel1 = gcnew FlowLayoutPanel;
      InitializeComponent();
      thirdColumnHeader = L"Main Ingredients";
      boringMeatloaf = L"ground beef";
      boringMeatloafRanking = L"*";
      AddButton( Button1, L"Reset", gcnew EventHandler( this, &DataGridViewBandDemo::Button1_Click ) );
      AddButton( Button2, L"Change Column 3 Header", gcnew EventHandler( this, &DataGridViewBandDemo::Button2_Click ) );
      AddButton( Button3, L"Change Meatloaf Recipe", gcnew EventHandler( this, &DataGridViewBandDemo::Button3_Click ) );
      AddAdditionalButtons();
      InitializeDataGridView();
   }

   DataGridView^ dataGridView;
   Button^ Button1;
   Button^ Button2;
   Button^ Button3;
   Button^ Button4;
   Button^ Button5;
   Button^ Button6;
   Button^ Button7;
   Button^ Button8;
   Button^ Button9;
   Button^ Button10;
   FlowLayoutPanel^ FlowLayoutPanel1;

private:
   void InitializeComponent()
   {
      FlowLayoutPanel1->Location = Point(454,0);
      FlowLayoutPanel1->AutoSize = true;
      FlowLayoutPanel1->FlowDirection = FlowDirection::TopDown;
      AutoSize = true;
      ClientSize = System::Drawing::Size( 614, 360 );
      FlowLayoutPanel1->Name = L"flowlayoutpanel";
      Controls->Add( this->FlowLayoutPanel1 );
      Text = this->GetType()->Name;
   }
```

--------------------------------

### SeekAlignedToLastTick VB.NET Setup

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/how-to-seek-a-clock-synchronously

This VB.NET example initializes a rectangle, creates an animation clock, and sets up control buttons for the storyboard.

```vbnet
Imports System.Windows
Imports System.Windows.Controls
Imports System.Windows.Media
Imports System.Windows.Media.Animation
Imports System.Windows.Navigation
Imports System.Windows.Shapes
Imports System.Data
Imports System.Xml
Imports System.Configuration



Namespace SDKSample
    ''' <summary>
    ''' Shows how to interactively control a clock.
    ''' </summary>

  Public Class SeekAlignedToLastTickExample
      Inherits Page

        Private myClock As AnimationClock
        Private currentTimeIndicator As TextBlock
        Private seekDestination As TextBox
        Private rectangleWidthIndicator As TextBlock
        Private myRectangle As Rectangle

        Public Sub New()



            Me.WindowTitle = "Controlling a Storyboard"
            Me.Background = Brushes.White

            Dim myStackPanel As New StackPanel()
            myStackPanel.Margin = New Thickness(20)

            ' Create a rectangle.
            myRectangle = New Rectangle()
            With myRectangle
                .Width = 100
                .Height = 20
                .Margin = New Thickness(12, 0, 0, 5)
                .Fill = New SolidColorBrush(Color.FromArgb(170, 51, 51, 255))
                .HorizontalAlignment = HorizontalAlignment.Left
            End With
            myStackPanel.Children.Add(myRectangle)

            '
            ' Create an animation and a storyboard to animate the
            ' rectangle.
            '
            Dim myDoubleAnimation As New DoubleAnimation(100, 500, New Duration(TimeSpan.FromSeconds(60)))
            myClock = myDoubleAnimation.CreateClock()
            myRectangle.ApplyAnimationClock(Rectangle.WidthProperty, myClock)
            myClock.Controller.Stop()


            '
            ' Create some buttons to control the storyboard
            ' and a panel to contain them.
            '
            Dim buttonPanel As New StackPanel()
            buttonPanel.Orientation = Orientation.Horizontal
            Dim beginButton As New Button()
            beginButton.Content = "Begin"
            AddHandler beginButton.Click, AddressOf beginButton_Clicked
            buttonPanel.Children.Add(beginButton)
            Dim pauseButton As New Button()
            pauseButton.Content = "Pause"
            AddHandler pauseButton.Click, AddressOf pauseButton_Clicked
            buttonPanel.Children.Add(pauseButton)
            Dim resumeButton As New Button()
            resumeButton.Content = "Resume"
            AddHandler resumeButton.Click, AddressOf resumeButton_Clicked
            buttonPanel.Children.Add(resumeButton)
            Dim skipToFillButton As New Button()
            skipToFillButton.Content = "Skip to Fill"
            AddHandler skipToFillButton.Click, AddressOf skipToFillButton_Clicked
            buttonPanel.Children.Add(skipToFillButton)
            Dim setSpeedRatioButton As New Button()
            setSpeedRatioButton.Content = "Triple Speed"
            AddHandler setSpeedRatioButton.Click, AddressOf setSpeedRatioButton_Clicked
            buttonPanel.Children.Add(setSpeedRatioButton)
            Dim stopButton As New Button()
            stopButton.Content = "Stop"
            AddHandler stopButton.Click, AddressOf stopButton_Clicked
            buttonPanel.Children.Add(stopButton)
            Dim removeButton As New Button()
            removeButton.Content = "Remove"
            AddHandler removeButton.Click, AddressOf removeButton_Clicked
            buttonPanel.Children.Add(removeButton)

            myStackPanel.Children.Add(buttonPanel)
```

--------------------------------

### WPF Path Elements for Caching Example

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/how-to-improve-rendering-performance-by-caching-an-element

This example demonstrates a series of Path elements within a nested Canvas structure, which can be used to test rendering performance improvements through caching.

```xml
<Path Canvas.Left='375.37' Canvas.Top='237.937' Fill='#67FFFFFF' Data='F1 M 0.0742493,0C 3.15698,1.11774 6.33755,2.4458 8.71234,4.70697C 10.9481,6.83575 12.3404,10.0646 12.5273,13.146C 12.5297,18.7859 9.11411,24.509 4.88687,28.2426L 4.27045,27.4565C 8.41269,24.0032 11.6613,18.5367 11.8177,13.146C 11.7116,10.382 10.6843,7.45734 8.83084,5.40411C 6.55069,2.87817 3.1976,1.4552 0,0.263977L 0.0742493,0'/>

                        <Path Canvas.Left='375.296' Canvas.Top='238.201' Fill='#B3FFFFFF' Data='F1 M 0.0743713,0C 3.26608,1.1889 6.62299,2.61188 8.90521,5.14014C 10.7586,7.19336 11.7859,10.118 11.8921,12.882C 11.7357,18.2727 8.48706,23.7393 4.34482,27.1926L 4.0372,26.7986L 3.72961,26.4043L 3.73715,26.3986C 7.79245,23.2343 10.8588,18.0156 11.1824,12.882C 11.146,10.246 10.3476,7.38568 8.6095,5.40356C 6.40591,2.89063 3.12152,1.45874 0,0.264221L 0.0372314,0.132019L 0.0743713,0'/>

                        <Path Canvas.Left='375.221' Canvas.Top='238.466' Fill='#67FFFFFF' Data='F1 M 0.074646,0C 3.19617,1.19452 6.48056,2.6264 8.68414,5.13934C 10.4222,7.12146 11.2207,9.98181 11.257,12.6178C 10.9334,17.7514 7.8671,22.97 3.8118,26.1344L 3.80426,26.1401L 3.189,25.3511L 3.21164,25.3342C 7.17935,22.4699 10.047,17.4857 10.5474,12.6178C 10.5787,10.2755 10.1143,7.71747 8.72659,5.83026C 6.68274,3.05066 3.21106,1.52643 0,0.264465L 0.074646,0'/>

                        <Path Name='Rectangle1' Canvas.Left='375.147' Canvas.Top='238.73' Fill='#34FFFFFF' Data='F1 M 0.0749207,0C 3.28598,1.26196 6.75766,2.78619 8.80151,5.5658C 10.1892,7.453 10.6536,10.011 10.6223,12.3533C 10.1219,17.2212 7.25427,22.2054 3.28656,25.0697L 3.26392,25.0867L 2.64868,24.2978L 2.6864,24.2695C 6.56754,21.7168 9.22403,16.9473 9.91266,12.3533C 10.0096,10.1268 9.74622,7.65833 8.48349,5.8219C 6.56812,3.03632 3.1348,1.52991 0,0.264587L 0.0749207,0'/>

                    </Canvas>
                </Canvas>
            </Canvas>
        </Canvas>
    </Canvas>
</Window>
```

--------------------------------

### Caching a Path Element with BitmapCache

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/how-to-improve-rendering-performance-by-caching-an-element

This example demonstrates how to apply a BitmapCache to a Path element to improve rendering performance.

```xml
<Path Canvas.Left='513.741' Canvas.Top='311.611' Fill='#0AFFFFFF' Data='F1 M 5.42715,0C 7.77554,3.69031 10.0325,7.44049 12.4724,11.071C 13.9953,13.3369 16.123,15.1382 18.0924,17.029C 21.591,20.3879 25.2619,23.5629 28.8092,26.8704C 32.9838,31.2312 37.2027,35.688 40.2959,40.8723C 45.5836,49.5515 52.0998,57.5822 56.2198,66.8727C 60.3911,76.2794 62.3145,87.2267 60.7883,97.403C 59.9024,103.122 57.8417,108.821 54.633,113.637C 51.8015,117.887 48.1749,121.664 44.1574,124.817C 42.6232,126.021 41.0275,127.149 39.394,128.214C 38.9862,128.48 38.572,128.736 38.1566,128.99C 38.0058,129.082 37.8518,129.169 37.6959,129.252C 37.4735,129.37 37.1319,129.65 36.9686,129.458C 36.5523,128.969 37.3015,128.217 37.5022,127.606C 37.8722,126.481 38.1357,125.314 38.2641,124.136C 34.4757,131.829 36.638,141.481 38.4588,149.861C 40.8167,160.712 43.8694,171.488 44.9118,182.544C 46.5804,202.607 45.4733,222.907 43.2741,242.919C 41.0929,262.767 37.6662,282.558 37.2992,302.522C 37.3384,319.827 38.2722,337.118 38.9135,354.411C 39.6041,373.028 40.1324,391.652 40.7488,410.272C 41.9358,446.13 43.9765,481.96 46.3463,517.759C 47.4458,534.367 48.0078,551.026 49.835,567.57C 51.4013,580.341 50.5407,593.385 49.0273,606.163C 47.7607,616.857 46.1447,627.524 43.9649,638.07C 40.3237,639.227 36.6602,640.314 32.9924,641.384C 35.8654,630.37 37.5072,619.049 38.9216,607.754C 40.5321,594.893 41.5671,581.748 39.978,568.884C 38.3843,555.104 37.9978,541.21 37.1662,527.363C 35.8705,505.787 34.6104,484.209 33.5208,462.621C 31.914,430.785 30.9577,398.919 29.8446,367.062C 29.0931,345.551 27.9134,324.046 27.7898,302.522C 28.1103,280.845 31.9794,259.364 34.4966,237.832C 36.6123,219.734 37.7839,201.366 36.3574,183.202C 35.2773,171.338 31.6491,159.844 29.1104,148.205C 27.2594,139.718 25.8563,130.472 28.3687,122.157C 28.3727,122.458 28.1325,123.025 28.4317,123.058C 28.8129,123.099 29.0606,122.618 29.3605,122.379C 29.8566,121.984 30.3553,121.591 30.8604,121.207C 33.1513,119.466 35.4839,117.771 37.656,115.883C 43.4176,110.877 48.0855,103.666 49.2166,96.1172C 50.3264,88.1945 48.6606,79.7019 45.3107,72.4369C 41.2782,63.6915 34.8741,56.2487 29.5879,48.1989C 26.2597,42.9709 22.6302,37.9194 18.6958,33.131C 13.8141,27.5779 8.33633,22.4648 4.22708,16.3181C 2.76846,14.1362 1.40903,11.8896 -3.05176e-005,9.67548L 5.42715,0'/>

<Path Canvas.Left='508.314' Canvas.Top='321.287' Fill='#13FFFFFF' Data='F1 M 5.42731,0C 6.83636,2.21417 8.1958,4.46075 9.65442,6.64258C 13.7637,12.7894 19.2414,17.9025 24.1232,23.4556C 28.0576,28.244 31.687,33.2954 35.0152,38.5234C 40.3015,46.5732 46.7055,54.016 50.738,62.7614C 54.0879,70.0264 55.7537,78.519 54.6439,86.4418C 53.5129,93.9904 48.845,101.202 43.0833,106.208C 41.3396,107.723 39.4891,109.112 37.646,110.505C 37.1931,110.847 36.7397,111.188 36.2878,111.532C 36.0953,111.678 35.9039,111.826 35.7129,111.974C 35.5452,112.104 35.3782,112.235 35.2117,112.366C 35.0699,112.478 34.929,112.591 34.7878,112.703C 34.48,112.949 34.1261,113.627 33.8195,113.38C 33.5862,113.192 33.8,112.781 33.7961,112.482C 31.2836,120.797 32.6867,130.043 34.5377,138.529C 37.0764,150.169 40.7046,161.662 41.7847,173.526C 43.2112,191.691 42.0396,210.059 39.924,228.156C 37.4067,249.689 33.5377,271.17 33.2172,292.846C 33.3408,314.37 34.5204,335.875 35.272,357.386C 36.385,389.243 37.3413,421.109 38.9482,452.946C 40.0378,474.533 41.2979,496.112 42.5936,517.688C 43.4251,531.535 43.8116,545.428 45.4053,559.208C 46.9944,572.072 45.9595,585.217 44.3489,598.078C 42.9346,609.373 41.2928,620.694 38.4197,631.709L 30.5485,633.953L 27.6094,634.76C 30.752,622.313 33.0142,609.625 34.5857,596.884C 36.0699,584.85 37.0491,572.554 35.5483,560.523C 33.8896,546.478 33.5692,532.306 32.8094,518.184C 31.5958,495.625 30.483,473.061 29.4592,450.493C 28.0187,418.742 26.8487,386.979 25.6879,355.217C 24.9283,334.43 23.8896,313.646 23.7078,292.846C 24.1653,253.168 36.1369,213.759 33.2303,174.184C 32.1237,161.468 27.8981,149.219 25.0453,136.778C 23.086,128.233 22.0533,119.073 23.9008,110.503C 25.1037,105.802 30.0197,102.902 33.6995,99.7398C 38.0822,95.9736 42.2833,90.8806 43.0723,85.1561C 43.7864,79.2531 42.2417,72.9573 39.5057,67.6782C 35.4262,59.8064 29.3246,53.1597 24.3071,45.85C 20.7829,40.5317 17.5952,34.9934 14.0098,29.7162C 9.31641,23.0524 4.37598,16.5519 0,9.67554L 5.42731,0'/>
```

--------------------------------

### Define a Path with CacheMode

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/how-to-improve-rendering-performance-by-caching-an-element

This example demonstrates how to define a Path element with a CacheMode set to BitmapCache to improve rendering performance.

```xml
<Path Canvas.Left='512.513' Canvas.Top='299.052' Fill='#1A353838' Data='F1 M 44.3448,61.106L 45.891,53.1749L 45.9276,53.036C 42.3353,48.4838 40.4018,42.6124 39.4414,36.8936C 37.4282,30.8375 35.8336,24.6449 34.3341,18.4417C 33.7685,16.863 33.1371,15.3079 32.5951,13.721C 32.3889,13.1175 32.185,12.5132 31.9945,11.9045C 31.838,11.4045 31.2738,10.6013 31.7358,10.3543C 31.9378,10.2464 32.0434,10.7025 32.1385,10.9108C 32.3371,11.3455 32.4674,11.8101 32.5841,12.2736C 32.888,13.4796 33.0031,14.7411 32.9726,15.9844C 32.878,19.8268 31.3316,23.7948 28.9012,26.7724C 24.7341,31.8775 16.302,34.3253 9.97458,32.4839C 8.41464,32.0805 6.90561,31.3831 5.58499,30.46C 4.82761,29.9306 4.26059,29.0691 3.37979,28.7731C 2.94327,28.7897 3.43411,29.6544 3.56894,30.0699C 3.78305,30.7297 4.00211,31.3881 4.23691,32.0408C 5.04257,34.2806 6.12656,36.4303 7.38766,38.4492C 10.577,44.3668 13.7625,50.287 16.8625,56.252L 17.1151,56.7484C 19.8871,61.786 22.5948,66.8625 25.5417,71.7999C 25.457,71.6817 25.4154,71.4989 25.2776,71.4528C 24.9951,71.3584 25.5111,72.0007 25.6369,72.2706C 25.7657,72.547 25.8933,72.8239 26.0238,73.0995C 26.3573,73.8046 26.6871,74.5115 27.0288,75.2126C 27.9297,77.061 28.8575,78.9007 29.9103,80.6669C 33.4829,86.6599 39.8266,91.6955 46.6244,93.2665C 53.5994,94.8784 61.9546,93.0002 67.5824,88.5757C 73.4707,83.9464 77.1446,75.7706 77.2283,68.2809C 77.2049,62.4897 75.583,56.5685 72.8315,51.4727C 71.9391,49.8198 70.9297,48.2296 69.8727,46.6768C 69.2592,45.7755 68.7633,44.7759 68.0084,43.9894C 67.8581,43.8328 68.1935,44.3822 68.2828,44.5801C 68.4396,44.9324 68.5915,45.2875 '/>
```

--------------------------------

### Caching a Path Element with BitmapCache

Source: https://learn.microsoft.com/en-us/dotnet/desktop/wpf/graphics-multimedia/how-to-improve-rendering-performance-by-caching-an-element

This example demonstrates how to define a Path element with a LinearGradientBrush and apply caching to improve rendering performance.

```xml
<Path Canvas.Left='357.949' Canvas.Top='210.203' Data='F1 M 0,46.1263L 2.25165,50.6733L 7.34521,55.0236L 8.74432,55.3953L 10.843,56.9911L 12.5918,57.7999L 13.6411,59.0679L 15.39,59.9205L 19.5873,62.6531L 24.1343,65.4512L 25.8832,66.0852L 31.8293,69.6485L 33.5782,70.2825L 38.1252,73.1681L 39.5243,73.6272L 40.9234,74.6109L 45.1207,75.223L 46.17,74.1081L 47.1537,68.162L 49.3179,62.5656L 51.0668,61.713L 52.1161,60.467L 61.9098,56.6413L 73.8021,56.532L 75.2012,55.2859L 82.8962,55.1985L 83.5957,54.1711L 88.1428,53.4278L 91.2907,51.2198L 92.6898,50.8482L 94.7885,49.2524L 101.434,46.3886L 110.528,42.1476L 119.622,37.9503L 130.115,32.8349L 130.815,30.7363L 129.066,27.5883L 127.317,26.7357L 122.836,21.6422L 122.77,19.1938L 121.021,18.3412L 113.676,13.4881L 112.277,13.0291L 110.178,11.4988L 108.43,10.6462L 105.981,9.3783L 102.833,8.65686L 98.9857,6.42706L 93.0396,4.9624L 88.4925,2.77631L 83.5957,2.71069L 82.1966,1.3772L 75.2012,1.28979L 73.8021,0L 59.8112,0.677673L 57.0129,3.41028L 54.9143,3.51959L 52.1161,6.07727L 49.6677,6.66754L 36.7261,13.7067L 35.327,14.1658L 32.5289,16.5486L 30.0804,17.2263L 29.0311,18.4942L 27.2823,19.3468L 19.937,24.1562L 17.8384,24.5715L 12.9416,29.1841L 11.5425,29.4683L 8.39453,32.8349L 7.54199,34.5838L 4.19727,37.7318L 0.349731,45.7765L 0,46.1263'>
                            <Shape.Fill>
                                <!-- black transparency -->
                                <LinearGradientBrush MappingMode='Absolute' StartPoint='165.385,3.7973' EndPoint='-39.6154,117.131'>
                                    <GradientBrush.GradientStops>
                                        <GradientStopCollection>
                                            <GradientStop Color='#00000000' Offset='0'/>
                                            <GradientStop Color='#80000000' Offset='1'/>
                                        </GradientStopCollection>
                                    </GradientBrush.GradientStops>
                                </LinearGradientBrush>
                            </Shape.Fill>
                        </Path>
```

```xml
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Tokens:
Raw