Question

我想在DataGridView的一个单元格中显示2个变量。

Icon stockIcon; Int stockStatus;

我已经看过http://msdn.microsoft.com/en-us/library/7tas5c80.aspx但我认为它很复杂，并没有显示如何在一个单元格中显示变量。

我不需要编辑功能，只显示两个变量。

有人能为我提供一个小例子吗？

我使用的是C＃4.0及其System.Windows.Forms.DataGridView

Answer 1

这是我自己的解决方案。只需将Column类型设置为LagerStatusColumn即可完成工作。

 public class LagerStatusColumn : DataGridViewColumn
{
    public LagerStatusColumn()
    {
        CellTemplate =
            new LagerStatusCell();
        ReadOnly = true;
    }
}
 public class LagerStatusCell : DataGridViewTextBoxCell
{
    protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, DataGridViewElementStates cellState, object value, object formattedValue, string errorText, DataGridViewCellStyle cellStyle, DataGridViewAdvancedBorderStyle advancedBorderStyle, DataGridViewPaintParts paintParts)
    {
        base.Paint(graphics, clipBounds, cellBounds, rowIndex, cellState, value, "", errorText, cellStyle,
                   advancedBorderStyle, paintParts);

        var cellValue = Convert.IsDBNull(value) ? 0 : Convert.ToDecimal(value);

        const int horizontaloffset = 2;

        var parent = (LagerStatusColumn)this.OwningColumn;

        var fnt = parent.InheritedStyle.Font;

        var icon = Properties.Resources.lager;
        if (cellValue == 0)
            icon = Properties.Resources.rest;
        else if (cellValue < 0)
            icon = Properties.Resources.question_white;

        const int vertoffset = 0;
        graphics.DrawIcon(icon, cellBounds.X + horizontaloffset,
             cellBounds.Y + vertoffset);

        var cellText = formattedValue.ToString();
        var textSize =
            graphics.MeasureString(cellText, fnt);

        //  Calculate the correct color:
        var textColor = parent.InheritedStyle.ForeColor;
        if ((cellState &
             DataGridViewElementStates.Selected) ==
            DataGridViewElementStates.Selected)
        {
            textColor = parent.InheritedStyle.
                SelectionForeColor;
        }

        // Draw the text:
        using (var brush = new SolidBrush(textColor))
        {
            graphics.DrawString(cellText, fnt, brush,
                                cellBounds.X + icon.Width + 2,
                                cellBounds.Y + 0);
        }
    }
}

在DataGridView中的Cell内显示图标和字符串

1 个答案: