DataGridView中的文本框列

本文关键字：文本 DataGridView | 更新日期: 2023-09-27 18:10:01

我已经在网格中添加了TextBox控件:我希望我的DataGridView TextBox列保存没有任何十进制值的数字。我该怎么做呢?

DataGridView中的文本框列

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

可以处理DataGridView。editingcontrol正在显示要转换的事件在要编辑的列中编辑时，将编辑控件设置为"文本框"限制输入，并将KeyPress事件附加到文本框KeyPress事件处理函数，我们可以调用char.IsNumber()方法来限制键盘输入，像这样:

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;
   }
}

public Form1()
{
   InitializeComponent();
   dataGridView1.EditingControlShowing += dataGridView1_EditingControlShowing;
}
private void dataGridView1_EditingControlShowing(object sender , DataGridViewEditingControlShowingEventArgs e)
{
   // Convert the editing control to a TextBox to register for KeyPress event
   TextBox txt_edit = e.Control as TextBox;
   if(txt_edit != null)
   {
      // Remove any existing handler
      txt_edit.KeyPress -= TextBoxKeyPressed;
      // Add the new handler
      txt_edit.KeyPress += TextBoxKeyPressed;
   }
}
private void TextBoxKeyPressed(object sender, System.Windows.Forms.KeyPressEventArgs e)
{
   // Test for numeric value or backspace in first column
   // Change this to whatever column you only want digits for
   if (dataGridView1.CurrentCell.ColumnIndex == 0)
   {
      // If its a numeric or backspace, display it.  Not a numeric, ignore it
      e.Handled = (!Char.IsDigit(e.KeyChar) && (e.KeyChar != (char)Keys.Back));
   }
}

试试这个:

Convert.ToInt32(textBox1.Text)
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