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C#實(shí)現(xiàn)DataGridView控件行列互換的方法

更新時(shí)間：2015年08月13日 16:36:49 作者：企鵝

這篇文章主要介紹了C#實(shí)現(xiàn)DataGridView控件行列互換的方法,涉及C#中DataGridView控件元素遍歷與添加操作的相關(guān)技巧,具有一定參考借鑒價(jià)值,需要的朋友可以參考下

本文實(shí)例講述了C#實(shí)現(xiàn)DataGridView控件行列互換的方法。分享給大家供大家參考。具體如下：

該示例程序是一個(gè)Windows窗體應(yīng)用程序，有左右兩個(gè)DataGridView控件：dgvLeft和dgvRight

dgvRight除時(shí)間外的每一行是dgvLeft的一列

private void Form1_Load(object sender, EventArgs e)
{
 //C#中確定控件DataGridView根據(jù)內(nèi)容自動(dòng)調(diào)整列寬長(zhǎng)度的屬性
 //是AutoSizeColumnsMode，將它的值設(shè)置為AllCells時(shí)可以達(dá)到該效果。
 //調(diào)整行每行頭部的寬度（可以更好地顯示出數(shù)字）
 this.dgvLeft.RowHeadersWidth = 50;
 this.dgvRight.RowHeadersWidth = 50;
 //左側(cè)數(shù)據(jù)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;
 //右側(cè)數(shù)據(jù)表，是左側(cè)數(shù)據(jù)表的轉(zhuǎn)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;
}

每一行的行號(hào)可以通過(guò)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();
 }
}

運(yùn)行效果如下圖所示：