输入异常提示

<TextBox Grid.Column="0" Style="{StaticResource TextBoxStyle}" Height="30" Text="{Binding CodeBinding, Mode=TwoWay, ValidatesOnExceptions=True}" Validation.ErrorTemplate="{StaticResource errorTemplateStyle}"></TextBox> public string CodeBinding { get { return code; } set { SetProperty(ref code, value, () => CodeBinding); if (value==null) { return; } string sql = ""; //读取数据库，看看编码是否重复 var model=......; if (model!=null) { //编码重复，抛出异常 throw new Exception("人员编码重复"); } } }

调试会报错，运行会显示错误警告"人员编码重复"

转载于:https://www.cnblogs.com/Lulus/p/8158364.html