winform 清空界面控件的小技巧

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// winform 清空界面控件的小技巧

private void btnClear_Click(object sender, EventArgs e)
{
ClearControlValue(this.panel);
}

/// <summary>
/// 清除容器里面某些控件的值
/// </summary>
/// <param name="parContainer">容器名称</param>
public void ClearControlValue(Control parContainer)
{
for (int index = 0; index < parContainer.Controls.Count; index++)
{
// 如果是容器内部控件，则递归调用自己
if (parContainer.Controls[index].HasChildren)
{
ClearControlValue(parContainer.Controls[index]);
}
else
{
switch (parContainer.Controls[index].GetType().Name)
{
case "TextBox":
(parContainer.Controls[index] as TextBox).Text = "";
break;

case "RadioButton":
(parContainer.Controls[index] as RadioButton).Checked = false;
break;

case "CheckBox":
(parContainer.Controls[index] as CheckBox).Checked = false;
break;

case "ComboBox":
(parContainer.Controls[index] as ComboBox).Text = "";
(parContainer.Controls[index] as ComboBox).SelectedIndex = -1;
break;

case "DataGridView":
(parContainer.Controls[index] as DataGridView).DataSource = null;
break;
}
}
}
}