DataGridView图像文本单元格

为了美观，有时候我们需要文本单元格中带有图标，然而微软自带的DataGridView控件中没有类似的控件。下面的示例就是实现这样的一个控件。在文本前显示图像，显示出的图像如果太大，效果不好看，可以结合之前写过的C#图像缩放与裁剪，自己加以修改整合。

 

部分代码：

public class TextAndImageColumn : DataGridViewTextBoxColumn    {        private Image imageValue;        private Size imageSize;        public TextAndImageColumn()        {            this.CellTemplate = new TextAndImageCell();        }        public override object Clone()        {            TextAndImageColumn c = base.Clone() as TextAndImageColumn;            c.imageValue = this.imageValue;            c.imageSize = this.imageSize;            return c;        }        public Image Image        {            get { return this.imageValue; }            set            {                if (this.Image != value)                {                    this.imageValue = value;                    this.imageSize = value.Size;                    if (this.InheritedStyle != null)                    {                        Padding inheritedPadding = this.InheritedStyle.Padding;                        this.DefaultCellStyle.Padding = new Padding(imageSize.Width,                            inheritedPadding.Top, inheritedPadding.Right,                            inheritedPadding.Bottom);                    }                }            }        }        private TextAndImageCell TextAndImageCellTemplate        {            get { return this.CellTemplate as TextAndImageCell; }        }        internal Size ImageSize        {            get { return imageSize; }        }    }    public class TextAndImageCell : DataGridViewTextBoxCell    {        private Image imageValue;        private Size imageSize;        public override object Clone()        {            TextAndImageCell c = base.Clone() as TextAndImageCell;            c.imageValue = this.imageValue;            c.imageSize = this.imageSize;            return c;        }        public Image Image        {            get            {                if (this.OwningColumn == null || this.OwningTextAndImageColumn == null)                {                    return imageValue;                }                else if (this.imageValue != null)                {                    return this.imageValue;                }                else                {                    return this.OwningTextAndImageColumn.Image;                }            }            set            {                if (this.imageValue != value)                {                    this.imageValue = value;                    this.imageSize = value.Size;                    Padding inheritedPadding = this.InheritedStyle.Padding;                    this.Style.Padding = new Padding(imageSize.Width,                        inheritedPadding.Top, inheritedPadding.Right,                        inheritedPadding.Bottom);                }            }        }        protected override void Paint(Graphics graphics, Rectangle clipBounds,            Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState,            object value, object formattedValue, string errorText,            DataGridViewCellStyle cellStyle,            DataGridViewAdvancedBorderStyle advancedBorderStyle,            DataGridViewPaintParts paintParts)        {            // Paint the base content            base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState,                value, formattedValue, errorText, cellStyle,                advancedBorderStyle, paintParts);            if (this.Image != null)            {                // Draw the image clipped to the cell.                System.Drawing.Drawing2D.GraphicsContainer container =                graphics.BeginContainer();                graphics.SetClip(cellBounds);                graphics.DrawImageUnscaled(this.Image, cellBounds.Location);                graphics.EndContainer(container);            }        }        private TextAndImageColumn OwningTextAndImageColumn        {            get { return this.OwningColumn as TextAndImageColumn; }        }    }

 

 

 

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http://blog.csdn.net/stuqbx