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//------------------------------------------------------------------------------
// <copyright file="DataGridViewColumnConverter.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
/*
*/
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;
internal class DataGridViewColumnConverter : ExpandableObjectConverter {
public override bool CanConvertTo(ITypeDescriptorContext context, Type destinationType) {
if (destinationType == typeof(InstanceDescriptor)) {
return true;
}
return base.CanConvertTo(context, destinationType);
}
/// <devdoc>
/// 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.
/// </devdoc>
public override object ConvertTo(ITypeDescriptorContext context, CultureInfo culture, object value, Type destinationType) {
if (destinationType == null) {
throw new ArgumentNullException("destinationType");
}
DataGridViewColumn dataGridViewColumn = value as DataGridViewColumn;
if (destinationType == typeof(InstanceDescriptor) && dataGridViewColumn != null) {
ConstructorInfo ctor;
// public DataGridViewColumn(Type cellType)
//
if (dataGridViewColumn.CellType != null) {
ctor = dataGridViewColumn.GetType().GetConstructor(new Type[] { typeof(Type) });
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[] { dataGridViewColumn.CellType }, false);
}
}
// public DataGridViewColumn()
//
ctor = dataGridViewColumn.GetType().GetConstructor(new Type[0]);
if (ctor != null) {
return new InstanceDescriptor(ctor, new object[0], false);
}
}
return base.ConvertTo(context, culture, value, destinationType);
}
}
}
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