我是Winform C#的新手。我有一个问题:有没有办法为DataGridView的单元格中的第一个字符设置颜色? 谢谢!
答案 0 :(得分:0)
处理CellPainting事件是正确的方法。以下是将您的需求应用于除网格列标题之外的特定单元格的代码段。
private void DataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.Value != null && !string.IsNullOrEmpty(e.Value.ToString()) && e.RowIndex != -1)
{
// Current cell pending to be painted.
var currentCell = dataGridView1.Rows[e.RowIndex].Cells[e.ColumnIndex];
// Cell that needs to be painted. In this case the first cell of the first row.
var cellToBePainted = dataGridView1.Rows[0].Cells[0];
if (currentCell == cellToBePainted)
{
using (Brush customColor = new SolidBrush(Color.Red))
using (Brush cellDefaultBrush = new SolidBrush(e.CellStyle.ForeColor))
{
string fullText = e.Value.ToString();
string firstChar = fullText[0].ToString();
string restOfTheText = fullText.Substring(1);
e.PaintBackground(e.CellBounds, true);
Rectangle cellRect = new Rectangle(e.CellBounds.Location, e.CellBounds.Size);
Size entireTextSize = TextRenderer.MeasureText(fullText, e.CellStyle.Font);
Size firstCharSize = TextRenderer.MeasureText(fullText[0].ToString(), e.CellStyle.Font);
e.Graphics.DrawString(fullText[0].ToString(), e.CellStyle.Font, customColor, cellRect);
if (!string.IsNullOrEmpty(restOfTheText))
{
Size restOfTheTextSize = TextRenderer.MeasureText(restOfTheText, e.CellStyle.Font);
cellRect.X += (entireTextSize.Width - restOfTheTextSize.Width);
cellRect.Width = e.CellBounds.Width;
e.Graphics.DrawString(restOfTheText, e.CellStyle.Font, cellDefaultBrush, cellRect);
}
e.Handled = true;
}
}
}
}