/// <summary>
/// 获取数字的格式化字符串
/// </summary>
/// <param name="num"></param>
/// <returns></returns>
private string GetNumberString(decimal num)
{
DataGridViewPercentColumn col = this.OwningColumn as DataGridViewPercentColumn;
string format = col.ValueForamt;
if (string.IsNullOrEmpty(format))
{
return(num.ToString());
}
return(num.ToString(format));
}
protected override void Paint(System.Drawing.Graphics graphics, System.Drawing.Rectangle clipBounds, System.Drawing.Rectangle cellBounds, int rowIndex, System.Windows.Forms.DataGridViewElementStates cellState, object value, object formattedValue, string errorText, System.Windows.Forms.DataGridViewCellStyle cellStyle, System.Windows.Forms.DataGridViewAdvancedBorderStyle advancedBorderStyle, System.Windows.Forms.DataGridViewPaintParts paintParts)
{
bool canParse = true;
decimal val = 0m;
try
{
val = Convert.ToDecimal(value);
}
catch
{
canParse = false;
}
DataGridViewPercentColumn col = this.OwningColumn as DataGridViewPercentColumn;
if (canParse && col.TotalCount > 0)
{
decimal decv = val / col.TotalCount;
if (decv > 1)
{
decv = 1;
}
if (decv < 0)
{
decv = 0;
}
Brush bs = new SolidBrush(cellStyle.BackColor);
//Brush bs2 = new SolidBrush(Color.YellowGreen);
Brush bs2 = new SolidBrush(Color.Red);
Brush bsstring = new SolidBrush(cellStyle.ForeColor);
if ((cellState & System.Windows.Forms.DataGridViewElementStates.Selected) == System.Windows.Forms.DataGridViewElementStates.Selected)
{
bs = new SolidBrush(cellStyle.SelectionBackColor);
bsstring = new SolidBrush(cellStyle.SelectionForeColor);
}
//if (decv < 0.75m)
//{
// if (decv < 0.2m)
// {
// bs2 = new SolidBrush(Color.Red);
// }
// else
// {
// bs2 = new SolidBrush(Color.Orange);
// }
//}
Pen p = new Pen(DataGridView.GridColor, 1);
graphics.FillRectangle(bs, cellBounds.X, cellBounds.Y, cellBounds.Width, cellBounds.Height);
graphics.FillRectangle(bs2, cellBounds.X + 1, cellBounds.Y + 1, (float)((cellBounds.Width - 3) * decv), cellBounds.Height - 3);
graphics.DrawLine(p, cellBounds.X, cellBounds.Y + cellBounds.Height - 1, cellBounds.X + cellBounds.Width - 1, cellBounds.Y + cellBounds.Height - 1);
graphics.DrawLine(p, cellBounds.X + cellBounds.Width - 1, cellBounds.Y, cellBounds.X + cellBounds.Width - 1, cellBounds.Y + cellBounds.Height - 1);
if (cellBounds.Width > cellStyle.Font.Size * 4)
{
string showString = null;
if (col.ShowTotal)
{
showString = GetNumberString(val) + "/" + GetNumberString(col.TotalCount);
}
else
{
showString = GetNumberString(val);
}
graphics.DrawString(showString, cellStyle.Font, bsstring, cellBounds.X + 4, cellBounds.Y + 4);
}
}
else
{
Brush bs = new SolidBrush(cellStyle.BackColor);
if ((cellState & System.Windows.Forms.DataGridViewElementStates.Selected) == System.Windows.Forms.DataGridViewElementStates.Selected)
{
bs = new SolidBrush(cellStyle.SelectionBackColor);
}
graphics.FillRectangle(bs, cellBounds.X, cellBounds.Y, cellBounds.Width, cellBounds.Height);
}
}