private void txtName_KeyDown(object sender, KeyEventArgs e)
{
Regex rg = new Regex("^[\u4e00-\u9fa5\b]$"); //\b是退格键
if (!rg.IsMatch(e.Key.ToString()))
{
e.Handled = true;}
if (txtName.Text.Length >= 20)
{
txtName.Text = txtName.Text.Substring(0, 20);
EasySL.Controls.Window.Alert("请输入20内的名称", this.floatePanel);
}}
silverlight 文本框只能输入汉字,码迷,mamicode.com
时间: 2024-08-07 21:20:26