DataBox中的TextBox列

Question

我TextBox在网格中添加了控件:我希望我的DataGridView TextBox列保存没有任何小数值的数字.我该怎么做？

Answer 1

来自：http://social.msdn.microsoft.com/forums/en-US/winformsdatacontrols/thread/919b059c-dba9-40d2-bac7-608a9b120336

在要限制输入的列中进行编辑时，可以处理 DataGridView.EditingControlShowing 事件将编辑控件投射到 TextBox，并将 KeyPress 事件附加到 TextBox，在 KeyPress 事件处理函数中，我们可以调用 char.IsNumber( ) 方法来限制键盘输入，如下所示：

private void Form1_Load(object sender, EventArgs e)
{
   DataTable dt = new DataTable();
   dt.Columns.Add("c1", typeof(int));
   dt.Columns.Add("c2");
   for (int j = 0; j < 10; j++)
   {
      dt.Rows.Add(j, "aaa" + j.ToString());
   }

   this.dataGridView1.DataSource = dt;
   this.dataGridView1.EditingControlShowing +=
      new DataGridViewEditingControlShowingEventHandler(
         dataGridView1_EditingControlShowing);
}

private bool IsHandleAdded;

void dataGridView1_EditingControlShowing(object sender,
    DataGridViewEditingControlShowingEventArgs e)
{
   if (!IsHandleAdded &&
       this.dataGridView1.CurrentCell.ColumnIndex == 0)
   {
      TextBox tx = e.Control as TextBox;
      if (tx != null)
      {
         tx.KeyPress += new KeyPressEventHandler(tx_KeyPress);
         this.IsHandleAdded = true;
      }
   }
}

void tx_KeyPress(object sender, KeyPressEventArgs e)
{
   if (!(char.IsNumber(e.KeyChar) || e.KeyChar == '\b'))
   {
      e.Handled = true;
   }
}