Question

C#怎么让窗体上所有的文本控件清空

Answer 1

private void ClearAllText()
{
foreach(Control ctr in Controls)
{
if(ctr is TextBox)//考虑是文本框的话
{
((TextBox)ctr).Text=String.Empty;
}
}
}

Answer 2

/// <summary>
/// 清空
/// </summary>
/// <param name="sender"></param>
/// <param name="e"></param>
private void btnDel_Click(object sender, EventArgs e)
{
foreach (var item in Controls)
{
if (item is TextBox)
{
((TextBox)item).Text = "";
}
}
}

Answer 3

全部控件选中 按 delete