DataGridView控件的使用

创建dataGridView1控件

private System.Windows.Forms.DataGridView dataGridView1;
this.dataGridView1 = new System.Windows.Forms.DataGridView();
1
2

1、创建列

dataGridView1.ColumnCount = 2;
dataGridView1.Columns[0].Name = "StartAddressColumn";
 dataGridView1.Columns[0].HeaderText = "开始地址";
dataGridView1.Columns[1].Name = "EndAddressColumn";
 dataGridView1.Columns[1].HeaderText = "结束地址";
1
2
3
4
5

2、添加序号

SolidBrush solidBrush;
StringFormat stringFormat = new StringFormat();
solidBrush = new SolidBrush(dataGridView1.RowHeadersDefaultCellStyle.ForeColor);
stringFormat.Alignment = StringAlignment.Center;
stringFormat.LineAlignment = StringAlignment.Center;
stringFormat.FormatFlags = StringFormatFlags.NoWrap;
private void dataGridView1_RowPostPaint(object sender, DataGridViewRowPostPaintEventArgs e)
{
    e.Graphics.DrawString((e.RowIndex + 1).ToString(), e.InheritedRowStyle.Font, solidBrush, new Rectangle(e.RowBounds.X, e.RowBounds.Y, dataGridView1.RowHeadersWidth, e.RowBounds.Height), stringFormat);
}
1
2
3
4
5
6
7
8
9
10

3、设置行头宽度

SetRowHeadersWidth();
private void SetRowHeadersWidth()
{
   int line = dataGridView1.Rows.Count;
   Size size = TextRenderer.MeasureText(line.ToString(),     dataGridView1.RowHeadersDefaultCellStyle.Font);
   dataGridView1.RowHeadersWidth = size.Width + 50;
}
1
2
3
4
5
6
7

4、行数限制

dataGridView1.AllowUserToAddRows = false;
private void RowsCountChanged()
{
    if (dataGridView1.Rows != null && dataGridView1.Rows.Count > 8)
    {
       dataGridView1.AllowUserToAddRows = false;
    }
    else if (!dataGridView1.AllowUserToAddRows)
    {
       dataGridView1.AllowUserToAddRows = true;
    }
}

private void dataGridView1_UserAddedRow(object sender, DataGridViewRowEventArgs e)
{
   RowsCountChanged();
}

private void dataGridView1_UserDeletedRow(object sender, DataGridViewRowEventArgs e)
{
   RowsCountChanged();
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22

5、数字输入校验

this.dataGridView1.EditingControlShowing += new DataGridViewEditingControlShowingEventHandler(Dgv_storageEditingControlShowing);

public void Dgv_storageEditingControlShowing(object sender, DataGridViewEditingControlShowingEventArgs e)
{
     Control control = new TextBox();
     control = (TextBox)e.Control;
     if (control.Name == "")
       {
          control.KeyPress += new KeyPressEventHandler(dataGridView1_KeyPress);
       }
}

private void dataGridView1_KeyPress(object sender, KeyPressEventArgs e)
{
     if ((e.KeyChar >= '0' && e.KeyChar <= '9') || (e.KeyChar >= 'a' && e.KeyChar <= 'f') || (e.KeyChar >= 'A' && e.KeyChar <= 'F') || e.KeyChar == '\b')
    {
         if (e.KeyChar >= 'a' && e.KeyChar <= 'f')
        {
            e.KeyChar = Convert.ToChar(e.KeyChar.ToString().ToUpper());
        }
        e.Handled = false;
    }
    else
    {
        e.Handled = true;
    }
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27

6、添加行

private void btAddSelectedRow_Click(object sender, EventArgs e)
{
     if (dataGridView1.Rows != null && dataGridView1.Rows.Count < 8)
         dataGridView1.Rows.Add();
 }
1
2
3
4
5

7、删除选定行

private void btDeleteSelectedRow_Click(object sender, EventArgs e)
{
      int selectedRowsCount = dataGridView1.SelectedRows.Count;
      int[] ia = new int[selectedRowsCount];
      for(int i = 0; i < selectedRowsCount; i++)
       {
           int id = dataGridView1.SelectedRows[i].Index;
           ia[i] = id;   
       }
       for(int i = 0; i < ia.Length; i++)
      {
         dataGridView1.Rows.RemoveAt(ia[i]);
     }
}
1
2
3
4
5
6
7
8
9
10
11
12
13
14

8、读取数据

private void button2_Click(object sender, EventArgs e)
{
   List<string> str = new List<string>();
   for(int i=0;i< dataGridView1.Rows.Count; i++)
   {
      string s = dataGridView1.Rows[i].Cells[0].Value.ToString() + " " + dataGridView1.Rows[i].Cells[1].Value.ToString();
      str.Add(s);
   }          
}
1
2
3
4
5
6
7
8
9