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//------------------------------------------------------------------------------
// <copyright file="DataGridViewImageColumn.cs" company="Microsoft">
// Copyright (c) Microsoft Corporation. All rights reserved.
// </copyright>
//------------------------------------------------------------------------------
namespace System.Windows.Forms
{
using System;
using System.Text;
using System.Drawing;
using System.Diagnostics;
using System.ComponentModel;
using System.Windows.Forms;
using System.Diagnostics.CodeAnalysis;
using System.Globalization;
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn"]/*' />
[ToolboxBitmapAttribute(typeof(DataGridViewImageColumn), "DataGridViewImageColumn.bmp")]
public class DataGridViewImageColumn : DataGridViewColumn
{
private static Type columnType = typeof(DataGridViewImageColumn);
private Image image;
private Icon icon;
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.DataGridViewImageColumn1"]/*' />
public DataGridViewImageColumn() : this(false /*valuesAreIcons*/)
{
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.DataGridViewImageColumn2"]/*' />
[
SuppressMessage("Microsoft.Usage", "CA2214:DoNotCallOverridableMethodsInConstructors") // Can't think of a workaround.
]
public DataGridViewImageColumn(bool valuesAreIcons)
: base(new DataGridViewImageCell(valuesAreIcons))
{
DataGridViewCellStyle defaultCellStyle = new DataGridViewCellStyle();
defaultCellStyle.AlignmentInternal = DataGridViewContentAlignment.MiddleCenter;
if (valuesAreIcons)
{
defaultCellStyle.NullValue = DataGridViewImageCell.ErrorIcon;
}
else
{
defaultCellStyle.NullValue = DataGridViewImageCell.ErrorBitmap;
}
this.DefaultCellStyle = defaultCellStyle;
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.CellTemplate"]/*' />
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public override DataGridViewCell CellTemplate
{
get
{
return base.CellTemplate;
}
set
{
if (value != null && !(value is System.Windows.Forms.DataGridViewImageCell))
{
throw new InvalidCastException(SR.GetString(SR.DataGridViewTypeColumn_WrongCellTemplateType, "System.Windows.Forms.DataGridViewImageCell"));
}
base.CellTemplate = value;
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.DefaultCellStyle"]/*' />
[
Browsable(true),
SRCategory(SR.CatAppearance),
SRDescription(SR.DataGridView_ColumnDefaultCellStyleDescr)
]
public override DataGridViewCellStyle DefaultCellStyle
{
get
{
return base.DefaultCellStyle;
}
set
{
base.DefaultCellStyle = value;
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.Description"]/*' />
[
Browsable(true),
DefaultValue(""),
SRCategory(SR.CatAppearance),
SRDescription(SR.DataGridViewImageColumn_DescriptionDescr)
]
public string Description
{
get
{
if (this.CellTemplate == null)
{
throw new InvalidOperationException(SR.GetString(SR.DataGridViewColumn_CellTemplateRequired));
}
return this.ImageCellTemplate.Description;
}
set
{
if (this.CellTemplate == null)
{
throw new InvalidOperationException(SR.GetString(SR.DataGridViewColumn_CellTemplateRequired));
}
this.ImageCellTemplate.Description = value;
if (this.DataGridView != null)
{
DataGridViewRowCollection dataGridViewRows = this.DataGridView.Rows;
int rowCount = dataGridViewRows.Count;
for (int rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
DataGridViewRow dataGridViewRow = dataGridViewRows.SharedRow(rowIndex);
DataGridViewImageCell dataGridViewCell = dataGridViewRow.Cells[this.Index] as DataGridViewImageCell;
if (dataGridViewCell != null)
{
dataGridViewCell.Description = value;
}
}
}
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.Icon"]/*' />
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public Icon Icon
{
get
{
return this.icon;
}
set
{
this.icon = value;
if (this.DataGridView != null)
{
this.DataGridView.OnColumnCommonChange(this.Index);
}
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.Image"]/*' />
[
DefaultValue(null),
SRCategory(SR.CatAppearance),
SRDescription(SR.DataGridViewImageColumn_ImageDescr)
]
public Image Image
{
get
{
return this.image;
}
set
{
this.image = value;
if (this.DataGridView != null)
{
this.DataGridView.OnColumnCommonChange(this.Index);
}
}
}
private DataGridViewImageCell ImageCellTemplate
{
get
{
return (DataGridViewImageCell) this.CellTemplate;
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.ImageLayout"]/*' />
[
DefaultValue(DataGridViewImageCellLayout.Normal),
SRCategory(SR.CatAppearance),
SRDescription(SR.DataGridViewImageColumn_ImageLayoutDescr)
]
public DataGridViewImageCellLayout ImageLayout
{
get
{
if (this.CellTemplate == null)
{
throw new InvalidOperationException(SR.GetString(SR.DataGridViewColumn_CellTemplateRequired));
}
DataGridViewImageCellLayout imageLayout = this.ImageCellTemplate.ImageLayout;
if (imageLayout == DataGridViewImageCellLayout.NotSet)
{
imageLayout = DataGridViewImageCellLayout.Normal;
}
return imageLayout;
}
set
{
if (this.ImageLayout != value)
{
this.ImageCellTemplate.ImageLayout = value;
if (this.DataGridView != null)
{
DataGridViewRowCollection dataGridViewRows = this.DataGridView.Rows;
int rowCount = dataGridViewRows.Count;
for (int rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
DataGridViewRow dataGridViewRow = dataGridViewRows.SharedRow(rowIndex);
DataGridViewImageCell dataGridViewCell = dataGridViewRow.Cells[this.Index] as DataGridViewImageCell;
if (dataGridViewCell != null)
{
dataGridViewCell.ImageLayoutInternal = value;
}
}
this.DataGridView.OnColumnCommonChange(this.Index);
}
}
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.ValuesAreIcons"]/*' />
[
Browsable(false),
DesignerSerializationVisibility(DesignerSerializationVisibility.Hidden)
]
public bool ValuesAreIcons
{
get
{
if (this.ImageCellTemplate == null)
{
throw new InvalidOperationException(SR.GetString(SR.DataGridViewColumn_CellTemplateRequired));
}
return this.ImageCellTemplate.ValueIsIcon;
}
set
{
if (this.ValuesAreIcons != value)
{
this.ImageCellTemplate.ValueIsIconInternal = value;
if (this.DataGridView != null)
{
DataGridViewRowCollection dataGridViewRows = this.DataGridView.Rows;
int rowCount = dataGridViewRows.Count;
for (int rowIndex = 0; rowIndex < rowCount; rowIndex++)
{
DataGridViewRow dataGridViewRow = dataGridViewRows.SharedRow(rowIndex);
DataGridViewImageCell dataGridViewCell = dataGridViewRow.Cells[this.Index] as DataGridViewImageCell;
if (dataGridViewCell != null)
{
dataGridViewCell.ValueIsIconInternal = value;
}
}
this.DataGridView.OnColumnCommonChange(this.Index);
}
if (value &&
this.DefaultCellStyle.NullValue is Bitmap &&
(Bitmap) this.DefaultCellStyle.NullValue == DataGridViewImageCell.ErrorBitmap)
{
this.DefaultCellStyle.NullValue = DataGridViewImageCell.ErrorIcon;
}
else if (!value &&
this.DefaultCellStyle.NullValue is Icon &&
(Icon) this.DefaultCellStyle.NullValue == DataGridViewImageCell.ErrorIcon)
{
this.DefaultCellStyle.NullValue = DataGridViewImageCell.ErrorBitmap;
}
}
}
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.Clone"]/*' />
public override object Clone()
{
DataGridViewImageColumn dataGridViewColumn;
Type thisType = this.GetType();
if (thisType == columnType) //performance improvement
{
dataGridViewColumn = new DataGridViewImageColumn();
}
else
{
// SECREVIEW : Late-binding does not represent a security thread, see bug#411899 for more info..
//
dataGridViewColumn = (DataGridViewImageColumn)System.Activator.CreateInstance(thisType);
}
if (dataGridViewColumn != null)
{
base.CloneInternal(dataGridViewColumn);
dataGridViewColumn.Icon = this.icon;
dataGridViewColumn.Image = this.image;
}
return dataGridViewColumn;
}
private bool ShouldSerializeDefaultCellStyle()
{
DataGridViewImageCell templateCell = this.CellTemplate as DataGridViewImageCell;
if (templateCell == null)
{
Debug.Fail("we can't compute the default cell style w/o a template cell");
return true;
}
if (!this.HasDefaultCellStyle)
{
return false;
}
object defaultNullValue;
if (templateCell.ValueIsIcon)
{
defaultNullValue = DataGridViewImageCell.ErrorIcon;
}
else
{
defaultNullValue = DataGridViewImageCell.ErrorBitmap;
}
DataGridViewCellStyle defaultCellStyle = this.DefaultCellStyle;
return (!defaultCellStyle.BackColor.IsEmpty ||
!defaultCellStyle.ForeColor.IsEmpty ||
!defaultCellStyle.SelectionBackColor.IsEmpty ||
!defaultCellStyle.SelectionForeColor.IsEmpty ||
defaultCellStyle.Font != null ||
!defaultNullValue.Equals(defaultCellStyle.NullValue) ||
!defaultCellStyle.IsDataSourceNullValueDefault ||
!String.IsNullOrEmpty(defaultCellStyle.Format) ||
!defaultCellStyle.FormatProvider.Equals(System.Globalization.CultureInfo.CurrentCulture) ||
defaultCellStyle.Alignment != DataGridViewContentAlignment.MiddleCenter ||
defaultCellStyle.WrapMode != DataGridViewTriState.NotSet ||
defaultCellStyle.Tag != null ||
!defaultCellStyle.Padding.Equals(Padding.Empty));
}
/// <include file='doc\DataGridViewImageColumn.uex' path='docs/doc[@for="DataGridViewImageColumn.ToString"]/*' />
public override string ToString()
{
StringBuilder sb = new StringBuilder(64);
sb.Append("DataGridViewImageColumn { Name=");
sb.Append(this.Name);
sb.Append(", Index=");
sb.Append(this.Index.ToString(CultureInfo.CurrentCulture));
sb.Append(" }");
return sb.ToString();
}
}
}
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