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Merge pull request #9107 from dotnet/main
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@BillWagner
BillWagner committed Jun 27, 2023
2 parents 2ff5ac2 + 70e0be5 commit 3db1b15
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77 changes: 28 additions & 49 deletions .../csharp/System.ComponentModel/ComponentEditor/Overview/componenteditorexamplecomponent.cs
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Expand Up @@ -2,13 +2,8 @@
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Collections;
using System.Drawing;
using System.IO;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows.Forms;
using System.Windows.Forms.Design;

// This example demonstrates how to implement a component editor that hosts
// component pages and associate it with a component. This example also
Expand All @@ -23,65 +18,62 @@ public class ExampleComponentEditor : System.Windows.Forms.Design.WindowsFormsCo
// This method override returns an type array containing the type of
// each component editor page to display.
protected override Type[] GetComponentEditorPages()
{
return new Type[] { typeof(ExampleComponentEditorPage),
typeof(ExampleComponentEditorPage) };
{
return new Type[] { typeof(ExampleComponentEditorPage),
typeof(ExampleComponentEditorPage) };
}
//</Snippet2>

//<Snippet3>
// This method override returns the index of the page to display when the
// component editor is first displayed.
protected override int GetInitialComponentEditorPageIndex()
{
return 1;
{
return 1;
}
//</Snippet3>
}

//<Snippet6>
// This example component editor page type provides an example
// ComponentEditorPage implementation.
internal class ExampleComponentEditorPage : System.Windows.Forms.Design.ComponentEditorPage
{
Label l1;
Button b1;
Label l1;
Button b1;
PropertyGrid pg1;

// Base64-encoded serialized image data for the required component editor page icon.
string icon = "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";

public ExampleComponentEditorPage()
{
// Initialize the page, which inherits from Panel, and its controls.
this.Size = new Size( 400, 250 );
this.Icon = DeserializeIconFromBase64Text(icon);
this.Size = new Size(400, 250);
this.Icon = new Icon("myicon.ico");
this.Text = "Example Page";

b1 = new Button();
b1.Size = new Size(200, 20);
b1.Location = new Point(200, 0);
b1.Text = "Set a random background color";
b1.Click += new EventHandler(this.randomBackColor);
this.Controls.Add( b1 );
this.Controls.Add(b1);

l1 = new Label();
l1.Size = new Size(190, 20);
l1.Location = new Point(4, 2);
l1.Text = "Example Component Editor Page";
this.Controls.Add( l1 );
this.Controls.Add(l1);

pg1 = new PropertyGrid();
pg1.Size = new Size(400, 280);
pg1.Location = new Point(0,30);
this.Controls.Add( pg1 );
pg1.Location = new Point(0, 30);
this.Controls.Add(pg1);
}

// This method indicates that the Help button should be enabled for this
// component editor page.
public override bool SupportsHelp()
{
return true;
{
return true;
}

//<Snippet4>
Expand All @@ -95,9 +87,9 @@ public override void ShowHelp()

// Retrieve the Site of the component, and return if null.
ISite componentSite = selectedComponent.Site;
if(componentSite == null)
if (componentSite == null)
return;

// Acquire the IHelpService to display a help topic using a indexed keyword lookup.
IHelpService helpService = (IHelpService)componentSite.GetService(typeof(IHelpService));
if (helpService != null)
Expand All @@ -107,10 +99,10 @@ public override void ShowHelp()

// The LoadComponent method is raised when the ComponentEditorPage is displayed.
protected override void LoadComponent()
{
this.pg1.SelectedObject = this.Component;
{
this.pg1.SelectedObject = this.Component;
}

// The SaveComponent method is raised when the WindowsFormsComponentEditor is closing
// or the current ComponentEditorPage is closing.
protected override void SaveComponent()
Expand All @@ -121,32 +113,19 @@ protected override void SaveComponent()
// This method is invoked by the button on this ComponentEditorPage.
private void randomBackColor(object sender, EventArgs e)
{
if( typeof(System.Windows.Forms.Control).IsAssignableFrom( this.Component.GetType() ) )
if (typeof(System.Windows.Forms.Control).IsAssignableFrom(this.Component.GetType()))
{
// Sets the background color of the Control associated with the
// WindowsFormsComponentEditor to a random color.
Random rnd = new Random();
((System.Windows.Forms.Control)this.Component).BackColor =
((System.Windows.Forms.Control)this.Component).BackColor =
Color.FromArgb(rnd.Next(255), rnd.Next(255), rnd.Next(255));
pg1.Refresh();
}
}

// This method can be used to retrieve an Icon from a block
// of Base64-encoded text.
private Icon DeserializeIconFromBase64Text(string text)
{
Icon img = null;
byte[] memBytes = Convert.FromBase64String(text);
IFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream(memBytes);
img = (Icon)formatter.Deserialize(stream);
stream.Close();
return img;
}
}
//</Snippet6>

//<Snippet5>
// This example control is associated with the ExampleComponentEditor
// through the following EditorAttribute.
Expand All @@ -156,4 +135,4 @@ public class ExampleUserControl : System.Windows.Forms.UserControl
}
//</Snippet5>
}
//</Snippet1>
//</Snippet1>
27 changes: 2 additions & 25 deletions snippets/csharp/System.ComponentModel/PropertyTabAttribute/Overview/class1.cs
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@@ -1,17 +1,10 @@
//<Snippet1>
using System;
using System.ComponentModel;
using System.ComponentModel.Design;
using System.Drawing;
using System.IO;
using System.Reflection;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.Windows.Forms;
using System.Windows.Forms.Design;

namespace TypeCategoryTabExample
{
{
// This component adds a TypeCategoryTab to the property browser
// that is available for any components in the current design mode document.
[PropertyTabAttribute(typeof(TypeCategoryTab), PropertyTabScope.Document)]
Expand All @@ -26,10 +19,6 @@ public TypeCategoryTabComponent()
// category of the type of each property.
public class TypeCategoryTab : PropertyTab
{
[BrowsableAttribute(true)]
// This string contains a Base-64 encoded and serialized example property tab image.
private string img = "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";

public TypeCategoryTab()
{
}
Expand Down Expand Up @@ -75,22 +64,10 @@ public override System.Drawing.Bitmap Bitmap
{
get
{
Bitmap bmp = new Bitmap(DeserializeFromBase64Text(img));
Bitmap bmp = new Bitmap(@"myproperty.bmp", true);
return bmp;
}
}

// This method can be used to retrieve an Image from a block of Base64-encoded text.
private Image DeserializeFromBase64Text(string text)
{
Image img = null;
byte[] memBytes = Convert.FromBase64String(text);
IFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream(memBytes);
img = (Image)formatter.Deserialize(stream);
stream.Close();
return img;
}
}
}
//</Snippet1>
20 changes: 1 addition & 19 deletions snippets/csharp/System.Data/EntityKey/Overview/Program.cs
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@@ -1,22 +1,4 @@
using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
using System.Data;
using System.Data.Common;
using System.Data.Objects;
using System.Data.Objects.DataClasses;
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Xml.Serialization;
using System.Data.Common.CommandTrees;
using System.Data.Metadata.Edm;
using System.Data.EntityClient;
using System.ComponentModel;
using System.Data.SqlClient;

namespace ObjectServicesConceptsCS
namespace ObjectServicesConceptsCS
{
class Program
{
Expand Down
114 changes: 7 additions & 107 deletions snippets/csharp/System.Data/EntityKey/Overview/Source.cs
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@@ -1,26 +1,22 @@
//<snippetUsingSerialization>
//<snippetUsing>
using System;
using System.Linq;
using System.Collections.Generic;
using System.Text;
//<snippetUsingEvents>
using System.ComponentModel;
using System.Data;
using System.Data.Common;
using System.Data.EntityClient;
using System.Data.Metadata.Edm;
using System.Data.Objects;
using System.Data.Objects.DataClasses;
//</snippetUsingEvents>
using System.Data.SqlClient;
//</snippetUsing>
using System.Runtime.Serialization;
using System.Runtime.Serialization.Formatters.Binary;
using System.IO;
using System.Linq;
//</snippetUsingSerialization>
using System.Xml.Serialization;
using System.Data.Common.CommandTrees;
using System.Data.Metadata.Edm;
using System.Data.EntityClient;
//<snippetUsingEvents>
using System.ComponentModel;
//</snippetUsingEvents>
using System.Data.SqlClient;

namespace ObjectServicesConceptsCS
{
Expand Down Expand Up @@ -1581,102 +1577,6 @@ public static void SerializeToXml()
Console.WriteLine(writer.ToString());
}
}
#region StreamToBinary
//<snippetStreamToBinary>
public static void ReadFromBinaryStream()
{
BinaryFormatter formatter = new BinaryFormatter();
using (AdventureWorksEntities context = new AdventureWorksEntities())
{
try
{
// Get the object graph for the selected customer
// as a binary stream.
MemoryStream stream = SerializeToBinaryStream(@"Adams");

// Read from the begining of the stream.
stream.Seek(0, SeekOrigin.Begin);

// Deserialize the customer graph from the binary stream
// and attach to an ObjectContext.
Contact contact = (Contact)formatter.Deserialize(stream);
context.Attach(contact);

// Display information for each item
// in the orders that belong to the first contact.
foreach (SalesOrderHeader order in contact.SalesOrderHeaders)
{
Console.WriteLine(String.Format("PO Number: {0}",
order.PurchaseOrderNumber));
Console.WriteLine(String.Format("Order Date: {0}",
order.OrderDate.ToString()));
Console.WriteLine("Order items:");
foreach (SalesOrderDetail item in order.SalesOrderDetails)
{
Console.WriteLine(String.Format("Product: {0} "
+ "Quantity: {1}", item.ProductID.ToString(),
item.OrderQty.ToString()));
}
}
}

catch (SerializationException ex)
{
Console.WriteLine("The object graph could not be deserialized from "
+ "the binary stream because of the following error:");
Console.WriteLine(ex.ToString());
}
}
}
private static MemoryStream SerializeToBinaryStream(string lastName)
{
BinaryFormatter formatter = new BinaryFormatter();
MemoryStream stream = new MemoryStream();

using (AdventureWorksEntities context = new AdventureWorksEntities())
{
//<snippetQueryTimeout>
// Specify a timeout for queries in this context, in seconds.
context.CommandTimeout = 120;
//</snippetQueryTimeout>

// Define a customer contact.
Contact customer;

// Create a Contact query with a path that returns
// orders and items for a contact.
ObjectQuery<Contact> query =
context.Contacts.Include("SalesOrderHeaders.SalesOrderDetails");

try
{
// Return the first contact with the specified last name
// along with its related orders and items.
customer = query.Where("it.LastName = @lastname",
new ObjectParameter("lastname", lastName)).First();

// Serialize the customer object graph.
formatter.Serialize(stream, customer);
}
catch (EntitySqlException ex)
{
throw new InvalidOperationException("The object query failed", ex);
}
catch (EntityCommandExecutionException ex)
{
throw new InvalidOperationException("The object query failed", ex);
}
catch (SerializationException ex)
{
throw new InvalidOperationException("The object graph could not be serialized", ex);
}

// Return the streamed object graph.
return stream;
}
}
//</snippetStreamToBinary>
#endregion

public static Boolean CleanupOrders()
{
Expand Down
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