C#实现DataGridView控件行列互换的方法

本文实例讲述了c#实现datagridview控件行列互换的方法。分享给大家供大家参考。具体如下：

该示例程序是一个windows窗体应用程序，有左右两个datagridview控件：dgvleft和dgvright

dgvright除时间外的每一行是dgvleft的一列

private void form1_load(object sender, eventargs e)
{
 //c#中确定控件datagridview根据内容自动调整列宽长度的属性
 //是autosizecolumnsmode，将它的值设置为allcells时可以达到该效果。
 //调整行每行头部的宽度（可以更好地显示出数字）
 this.dgvleft.rowheaderswidth = 50;
 this.dgvright.rowheaderswidth = 50;
 //左侧数据表
 datatable dtleft = new datatable();
 dtleft.columns.add("c1");
 dtleft.columns.add("c2");
 dtleft.columns.add("c3");
 dtleft.columns.add("time");
 dtleft.rows.add("1-1", "1-2", "1-3", datetime.now.toshorttimestring());
 dtleft.rows.add("2-1", "2-2", "2-3", datetime.now.toshorttimestring());
 dtleft.rows.add("3-1", "3-2", "3-3", datetime.now.toshorttimestring());
 dtleft.rows.add("4-1", "4-2", "4-3", datetime.now.toshorttimestring());
 dtleft.rows.add("5-1", "5-2", "5-3", datetime.now.toshorttimestring());
 dtleft.rows.add("6-1", "6-2", "6-3", datetime.now.toshorttimestring());
 dgvleft.datasource = dtleft;
 //右侧数据表，是左侧数据表的转置
 datatable dtright = new datatable();
 for (int i = 0; i < dtleft.rows.count; i++)
 {
  dtright.columns.add("c" + i);
 }
 dtright.columns.add("time");
 for (int i = 0; i < dtleft.columns.count - 1; i++)
 {
  object[] obj = new object[dtleft.rows.count + 1];
  for (int j = 0; j < dtleft.rows.count; j++)
  {
   obj[j] = dtleft.rows[j][i];
  }
  obj[obj.length - 1] = datetime.now.toshorttimestring();
  dtright.rows.add(obj);
 }
 dgvright.datasource = dtright;
}

每一行的行号可以通过下面的方法添加

//datagridview 控件 dgvleft 的 rowsadded 事件
private void dgvleft_rowsadded(object sender, datagridviewrowsaddedeventargs e)
{
 for (int i = 0; i < dgvleft.rows.count; i++)
 {
  this.dgvleft.rows[i].headercell.style.alignment = 
   datagridviewcontentalignment.middleright;
  this.dgvleft.rows[i].headercell.value = i.tostring();
 }
}
//datagridview 控件 dgvleft 的 rowsremoved 事件
private void dgvleft_rowsremoved(object sender, datagridviewrowsremovedeventargs e)
{
 for (int i = 0; i < dgvleft.rows.count; i++)
 {
  this.dgvleft.rows[i].headercell.style.alignment =
   datagridviewcontentalignment.middleright;
  this.dgvleft.rows[i].headercell.value = i.tostring();
 }
}
//datagridview 控件 dgvright 的 rowsadded 事件
private void dgvright_rowsadded(object sender, datagridviewrowsaddedeventargs e)
{
 for (int i = 0; i < dgvright.rows.count; i++)
 {
  this.dgvright.rows[i].headercell.style.alignment =
   datagridviewcontentalignment.middleright;
  this.dgvright.rows[i].headercell.value = i.tostring();
 }
}
//datagridview 控件 dgvright 的 rowsremoved 事件
private void dgvright_rowsremoved(object sender, datagridviewrowsremovedeventargs e)
{
 for (int i = 0; i < dgvright.rows.count; i++)
 {
  this.dgvright.rows[i].headercell.style.alignment = 
   datagridviewcontentalignment.middleright;
  this.dgvright.rows[i].headercell.value = i.tostring();
 }
}

运行效果如下图所示：

希望本文所述对大家的c#程序设计有所帮助。