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Modernize C# snippets #13053

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3c06b12
Modernize c# snippets
gewarren Sep 3, 2026
6ce88cb
respond to CCR
gewarren Sep 3, 2026
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38 changes: 19 additions & 19 deletions snippets/csharp/System.Drawing.Design/BitmapEditor/Overview/usercontrol1.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -2,16 +2,16 @@
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Data;
using System.Drawing;
using System.Drawing.Design;
using System.Data;
using System.Windows.Forms;

namespace BitmapEditorExample
{
public class UserControl1 : System.Windows.Forms.UserControl
{
private System.ComponentModel.Container components = null;
public class UserControl1 : System.Windows.Forms.UserControl
{
private System.ComponentModel.Container components = null;

//<Snippet1>
[EditorAttribute(typeof(System.Drawing.Design.BitmapEditor),
Expand All @@ -31,20 +31,20 @@ public Bitmap testBitmap
private Bitmap testBmp;
//</Snippet1>

public UserControl1()
{
InitializeComponent();
}
public UserControl1()
{
InitializeComponent();
}

#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
}
#endregion
}
#region Component Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
components = new System.ComponentModel.Container();
}
#endregion
}
}
4 changes: 2 additions & 2 deletions ...harp/System.Drawing.Design/CategoryNameCollection/Overview/toolboxcategorynamescontrol.cs
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Original file line number Diff line number Diff line change
Expand Up @@ -3,15 +3,15 @@
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Data;
using System.Drawing;
using System.Drawing.Design;
using System.Data;
using System.Windows.Forms;

namespace ToolboxCategoryNamesControl
{
public class ToolboxCategoryNamesControl : System.Windows.Forms.UserControl
{
{
private System.Drawing.Design.IToolboxService toolboxService;
private System.Drawing.Design.CategoryNameCollection categoryNames;

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28 changes: 11 additions & 17 deletions ...pets/csharp/System.Drawing.Design/IPropertyValueUIService/Overview/propertyuicomponent.cs
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Expand Up @@ -10,8 +10,8 @@ namespace PropertyValueUIServiceExample
// This component obtains the IPropertyValueUIService and adds a
// PropertyValueUIHandler that provides PropertyValueUIItem objects,
// which provide an image, ToolTip, and invoke event handler to
// any properties named HorizontalMargin and VerticalMargin,
// such as the example integer properties on this component.
// any properties named HorizontalMargin and VerticalMargin,
// such as the example integer properties on this component.
public class PropertyUIComponent : System.ComponentModel.Component
{
// Example property for which to provide a PropertyValueUIItem.
Expand All @@ -22,14 +22,10 @@ public class PropertyUIComponent : System.ComponentModel.Component
[DesignerSerializationVisibility(DesignerSerializationVisibility.Visible)]
public int VerticalMargin { get; set; }

// Field storing the value of the VerticalMargin property.
private int vMargin;

// Constructor.
public PropertyUIComponent(System.ComponentModel.IContainer container)
{
if (container != null)
container.Add(this);
container?.Add(this);
HorizontalMargin = 0;
VerticalMargin = 0;
}
Expand All @@ -48,10 +44,10 @@ private void marginPropertyValueUIHandler(
{
// A PropertyValueUIHandler added to the IPropertyValueUIService
// is queried once for each property of a component and passed
// a PropertyDescriptor that represents the characteristics of
// the property when the Properties window is set to a new
// component. A PropertyValueUIHandler can determine whether
// to add a PropertyValueUIItem for the object to its ValueUIItem
// a PropertyDescriptor that represents the characteristics of
// the property when the Properties window is set to a new
// component. A PropertyValueUIHandler can determine whether
// to add a PropertyValueUIItem for the object to its ValueUIItem
// list depending on the values of the PropertyDescriptor.
if (propDesc.DisplayName.Equals("HorizontalMargin"))
{
Expand All @@ -67,15 +63,15 @@ private void marginPropertyValueUIHandler(
}
//</Snippet2>

// Invoke handler associated with the PropertyValueUIItem objects
// Invoke handler associated with the PropertyValueUIItem objects
// provided by the marginPropertyValueUIHandler.
private void marginInvoke(System.ComponentModel.ITypeDescriptorContext context, System.ComponentModel.PropertyDescriptor propDesc, PropertyValueUIItem item)
{
MessageBox.Show("Test invoke message box");
}

// Component.Site override to add the marginPropertyValueUIHandler
// when the component is sited, and to remove it when the site is
// when the component is sited, and to remove it when the site is
// set to null.
public override System.ComponentModel.ISite Site
{
Expand All @@ -89,14 +85,12 @@ public override System.ComponentModel.ISite Site
{
base.Site = value;
IPropertyValueUIService uiService = (IPropertyValueUIService)this.GetService(typeof(IPropertyValueUIService));
if (uiService != null)
uiService.AddPropertyValueUIHandler(new PropertyValueUIHandler(this.marginPropertyValueUIHandler));
uiService?.AddPropertyValueUIHandler(new PropertyValueUIHandler(this.marginPropertyValueUIHandler));
}
else
{
IPropertyValueUIService uiService = (IPropertyValueUIService)this.GetService(typeof(IPropertyValueUIService));
if (uiService != null)
uiService.RemovePropertyValueUIHandler(new PropertyValueUIHandler(this.marginPropertyValueUIHandler));
uiService?.RemovePropertyValueUIHandler(new PropertyValueUIHandler(this.marginPropertyValueUIHandler));
base.Site = value;
}
}
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