Wie kann eine bestimmte Spaltenüberschrift in DataGridView C# zusammengeführt werden?

Question

Ich würde gerne einen Spaltenüberschriftstext für Tow-Spalten nehmen. Wie würdest du das machen?

| VOLLER NAME |

| zuerst | letzte

---

zeige ich Erster & letzte in einer Spalte

Answer 1

public partial class MergeRowHeaderForm5 : Form 
{ 
    public MergeRowHeaderForm5() 
    { 
     InitializeComponent(); 
    } 

    private void MergeRowHeaderForm5_Load(object sender, EventArgs e) 
    { 
     this.dataGridView1.Columns.Add("JanWin", "Win"); 
     this.dataGridView1.Columns.Add("JanLoss", "Loss"); 
     this.dataGridView1.Columns.Add("FebWin", "Win"); 
     this.dataGridView1.Columns.Add("FebLoss", "Loss"); 
     this.dataGridView1.Columns.Add("MarWin", "Win"); 
     this.dataGridView1.Columns.Add("MarLoss", "Loss"); 
     this.dataGridView1.Columns.Add("AprWin", "Win"); 
     this.dataGridView1.Columns.Add("AprLoss", "Loss"); 
     this.dataGridView1.Columns.Add("MayWin", "Win"); 
     this.dataGridView1.Columns.Add("MayLoss", "Loss"); 

     for (int j = 0; j < this.dataGridView1.ColumnCount; j++) 
     { 
      this.dataGridView1.Columns[j].Width = 45; 
     } 

     this.dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing; 
     this.dataGridView1.ColumnHeadersHeight = this.dataGridView1.ColumnHeadersHeight * 2; 
     this.dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.BottomCenter; 
     this.dataGridView1.CellPainting += new DataGridViewCellPaintingEventHandler(dataGridView1_CellPainting); 
     this.dataGridView1.Paint += new PaintEventHandler(dataGridView1_Paint); 
     this.dataGridView1.Scroll += new ScrollEventHandler(dataGridView1_Scroll); 
     this.dataGridView1.ColumnWidthChanged += new DataGridViewColumnEventHandler(dataGridView1_ColumnWidthChanged); 
    } 


    private void dataGridView1_ColumnWidthChanged(object sender, DataGridViewColumnEventArgs e) 
    { 
     Rectangle rtHeader = this.dataGridView1.DisplayRectangle; 
     rtHeader.Height = this.dataGridView1.ColumnHeadersHeight/2; 
     this.dataGridView1.Invalidate(rtHeader); 
    } 

    private void dataGridView1_Scroll(object sender, ScrollEventArgs e) 
    { 
     Rectangle rtHeader = this.dataGridView1.DisplayRectangle; 
     rtHeader.Height = this.dataGridView1.ColumnHeadersHeight/2; 
     this.dataGridView1.Invalidate(rtHeader); 
    } 

    private void dataGridView1_Paint(object sender, PaintEventArgs e) 
    { 
     string[] monthes = { "Emp Info", "", "", "", "" }; 
     for (int j = 0; j < 10;) 
     { 
      Rectangle r1 = this.dataGridView1.GetCellDisplayRectangle(j, -1, true); 
      int w2 = this.dataGridView1.GetCellDisplayRectangle(j + 1, -1, true).Width; 
      r1.X += 1; 
      r1.Y += 1; 
      r1.Width = r1.Width + w2 - 2; 
      r1.Height = r1.Height/2 - 2; 
      e.Graphics.FillRectangle(new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.BackColor), r1); 
      StringFormat format = new StringFormat(); 
      format.Alignment = StringAlignment.Center; 
      format.LineAlignment = StringAlignment.Center; 
      e.Graphics.DrawString(monthes[j/2], 
      this.dataGridView1.ColumnHeadersDefaultCellStyle.Font, 
      new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor), 
      r1, 
      format); 
      j += 2; 
     } 
    } 

    private void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e) 
    { 
     if (e.RowIndex == -1 && e.ColumnIndex > -1) 
     { 
      Rectangle r2 = e.CellBounds; 
      r2.Y += e.CellBounds.Height/2; 
      r2.Height = e.CellBounds.Height/2; 
      e.PaintBackground(r2, true); 
      e.PaintContent(r2); 
      e.Handled = true; 
     } 
    } 
}