Code:
/ 4.0 / 4.0 / DEVDIV_TFS / Dev10 / Releases / RTMRel / ndp / fx / src / WinForms / Managed / System / WinForms / ListItemConverter.cs / 1305376 / ListItemConverter.cs
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms {
using System.Runtime.Serialization.Formatters;
using System.Runtime.Remoting;
using System.Runtime.InteropServices;
using Microsoft.Win32;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Drawing;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
///
/// ListViewItemConverter is a class that can be used to convert
/// ListViewItem objects from one data type to another. Access this
/// class through the TypeDescriptor.
///
public class ListViewItemConverter : ExpandableObjectConverter {
///
/// Gets a value indicating whether this converter can
/// convert an object to the given destination type using the context.
///
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(InstanceDescriptor)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
///
/// Converts the given object to another type. The most common types to convert
/// are to and from a string object. The default implementation will make a call
/// to ToString on the object if the object is valid and if the destination
/// type is string. If this cannot convert to the desitnation type, this will
/// throw a NotSupportedException.
///
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(InstanceDescriptor) && value is ListViewItem) {
ListViewItem item = (ListViewItem)value;
ConstructorInfo ctor;
// Should we use the subitem constructor?
//
for(int i=1; i < item.SubItems.Count; ++i) {
if (item.SubItems[i].CustomStyle) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] { typeof(ListViewItem.ListViewSubItem[]), typeof(string)});
if (ctor != null) {
ListViewItem.ListViewSubItem[] subItemArray = new ListViewItem.ListViewSubItem[item.SubItems.Count];
((ICollection)item.SubItems).CopyTo(subItemArray, 0);
return new InstanceDescriptor(ctor, new object[] {subItemArray, item.ImageKey}, false);
}
else {
break;
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] { typeof(ListViewItem.ListViewSubItem[]), typeof(int)});
if (ctor != null) {
ListViewItem.ListViewSubItem[] subItemArray = new ListViewItem.ListViewSubItem[item.SubItems.Count];
((ICollection)item.SubItems).CopyTo(subItemArray, 0);
return new InstanceDescriptor(ctor, new object[] {subItemArray, item.ImageIndex}, false);
}
else {
break;
}
}
}
}
// Convert SubItem array to string array
//
string[] subItems = new string[item.SubItems.Count];
for(int i=0; i < subItems.Length; ++i) {
subItems[i] = item.SubItems[i].Text;
}
// ForeColor, BackColor or ItemFont set
//
if (item.SubItems[0].CustomStyle) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(string),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
subItems,
item.ImageKey,
item.SubItems[0].CustomForeColor ? item.ForeColor : Color.Empty,
item.SubItems[0].CustomBackColor ? item.BackColor : Color.Empty,
item.SubItems[0].CustomFont ? item.Font : null
}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(int),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
subItems,
item.ImageIndex,
item.SubItems[0].CustomForeColor ? item.ForeColor : Color.Empty,
item.SubItems[0].CustomBackColor ? item.BackColor : Color.Empty,
item.SubItems[0].CustomFont ? item.Font : null
}, false);
}
}
}
// Text
//
if (item.ImageIndex == -1 && String.IsNullOrEmpty(item.ImageKey) && item.SubItems.Count <= 1) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text}, false);
}
}
// Text and Image
//
if (item.SubItems.Count <= 1) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string),
typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text, item.ImageKey}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string),
typeof(int)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text, item.ImageIndex}, false);
}
}
}
// Text, Image and SubItems
//
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {subItems, item.ImageKey}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(int)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {subItems, item.ImageIndex}, false);
}
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
internal class ListViewSubItemConverter : ExpandableObjectConverter {
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(InstanceDescriptor)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(InstanceDescriptor) && value is ListViewItem.ListViewSubItem) {
ListViewItem.ListViewSubItem item = (ListViewItem.ListViewSubItem)value;
ConstructorInfo ctor;
// Subitem has custom style
//
if (item.CustomStyle) {
ctor = typeof(ListViewItem.ListViewSubItem).GetConstructor(new Type[] {
typeof(ListViewItem),
typeof(string),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
null,
item.Text,
item.ForeColor,
item.BackColor,
item.Font}, true);
}
}
// Otherwise, just use the text constructor
//
ctor = typeof(ListViewItem.ListViewSubItem).GetConstructor(new Type[] {typeof(ListViewItem), typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {null, item.Text}, true);
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
//------------------------------------------------------------------------------
//
// Copyright (c) Microsoft Corporation. All rights reserved.
//
//-----------------------------------------------------------------------------
/*
*/
namespace System.Windows.Forms {
using System.Runtime.Serialization.Formatters;
using System.Runtime.Remoting;
using System.Runtime.InteropServices;
using Microsoft.Win32;
using System.Collections;
using System.ComponentModel;
using System.ComponentModel.Design.Serialization;
using System.Drawing;
using System.Diagnostics;
using System.Globalization;
using System.Reflection;
///
/// ListViewItemConverter is a class that can be used to convert
/// ListViewItem objects from one data type to another. Access this
/// class through the TypeDescriptor.
///
public class ListViewItemConverter : ExpandableObjectConverter {
///
/// Gets a value indicating whether this converter can
/// convert an object to the given destination type using the context.
///
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(InstanceDescriptor)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
///
/// Converts the given object to another type. The most common types to convert
/// are to and from a string object. The default implementation will make a call
/// to ToString on the object if the object is valid and if the destination
/// type is string. If this cannot convert to the desitnation type, this will
/// throw a NotSupportedException.
///
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(InstanceDescriptor) && value is ListViewItem) {
ListViewItem item = (ListViewItem)value;
ConstructorInfo ctor;
// Should we use the subitem constructor?
//
for(int i=1; i < item.SubItems.Count; ++i) {
if (item.SubItems[i].CustomStyle) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] { typeof(ListViewItem.ListViewSubItem[]), typeof(string)});
if (ctor != null) {
ListViewItem.ListViewSubItem[] subItemArray = new ListViewItem.ListViewSubItem[item.SubItems.Count];
((ICollection)item.SubItems).CopyTo(subItemArray, 0);
return new InstanceDescriptor(ctor, new object[] {subItemArray, item.ImageKey}, false);
}
else {
break;
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] { typeof(ListViewItem.ListViewSubItem[]), typeof(int)});
if (ctor != null) {
ListViewItem.ListViewSubItem[] subItemArray = new ListViewItem.ListViewSubItem[item.SubItems.Count];
((ICollection)item.SubItems).CopyTo(subItemArray, 0);
return new InstanceDescriptor(ctor, new object[] {subItemArray, item.ImageIndex}, false);
}
else {
break;
}
}
}
}
// Convert SubItem array to string array
//
string[] subItems = new string[item.SubItems.Count];
for(int i=0; i < subItems.Length; ++i) {
subItems[i] = item.SubItems[i].Text;
}
// ForeColor, BackColor or ItemFont set
//
if (item.SubItems[0].CustomStyle) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(string),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
subItems,
item.ImageKey,
item.SubItems[0].CustomForeColor ? item.ForeColor : Color.Empty,
item.SubItems[0].CustomBackColor ? item.BackColor : Color.Empty,
item.SubItems[0].CustomFont ? item.Font : null
}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(int),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
subItems,
item.ImageIndex,
item.SubItems[0].CustomForeColor ? item.ForeColor : Color.Empty,
item.SubItems[0].CustomBackColor ? item.BackColor : Color.Empty,
item.SubItems[0].CustomFont ? item.Font : null
}, false);
}
}
}
// Text
//
if (item.ImageIndex == -1 && String.IsNullOrEmpty(item.ImageKey) && item.SubItems.Count <= 1) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text}, false);
}
}
// Text and Image
//
if (item.SubItems.Count <= 1) {
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string),
typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text, item.ImageKey}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string),
typeof(int)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {item.Text, item.ImageIndex}, false);
}
}
}
// Text, Image and SubItems
//
if (!String.IsNullOrEmpty(item.ImageKey)) {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {subItems, item.ImageKey}, false);
}
} else {
ctor = typeof(ListViewItem).GetConstructor(new Type[] {
typeof(string[]),
typeof(int)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {subItems, item.ImageIndex}, false);
}
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
internal class ListViewSubItemConverter : ExpandableObjectConverter {
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(InstanceDescriptor)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
if (destinationType == typeof(InstanceDescriptor) && value is ListViewItem.ListViewSubItem) {
ListViewItem.ListViewSubItem item = (ListViewItem.ListViewSubItem)value;
ConstructorInfo ctor;
// Subitem has custom style
//
if (item.CustomStyle) {
ctor = typeof(ListViewItem.ListViewSubItem).GetConstructor(new Type[] {
typeof(ListViewItem),
typeof(string),
typeof(Color),
typeof(Color),
typeof(Font)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {
null,
item.Text,
item.ForeColor,
item.BackColor,
item.Font}, true);
}
}
// Otherwise, just use the text constructor
//
ctor = typeof(ListViewItem.ListViewSubItem).GetConstructor(new Type[] {typeof(ListViewItem), typeof(string)});
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] {null, item.Text}, true);
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
}
// File provided for Reference Use Only by Microsoft Corporation (c) 2007.
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