SilverLight.3-Validation:一、银光验证。ValidatesOnExpression和NotifyOnValidationError
ylbtech-SilverLight-DataBindings_BindingADataObjects_Validation:一、银光验证。ValidatesOnExpression和NotifyOnValidationError |
- 1.A,数据源返回顶部
- 1.B, ValidatesOnExpression
- 1.C, NotifyOnValidationError
1.A,数据源返回顶部 |
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using System; namespace SL3ValidationYlbtechApp.Access { /// <summary> /// 人类 /// </summary> public class Person { int _personId; /// <summary> /// 编号【PK】 /// </summary> public int PersonId { get { return _personId; } set { _personId = value; } } string _username; //长度 /// <summary> /// 姓名 /// </summary> public string Username { get { return _username; } set { _username = value; } } string _sex; //用户自定义 /// <summary> /// 性别【CK】男|女|未知 /// </summary> public string Sex { get { return _sex; } set { _sex = value; } } int _age; //范围 /// <summary> /// 年龄 /// </summary> public int Age { get { return _age; } set { _age = value; } } string _email; //正则 /// <summary> /// 电子邮箱 /// </summary> public string Email { get { return _email; } set { _email = value; } } DateTime _addedDate; /// <summary> /// 添加日期 /// </summary> public DateTime AddedDate { get { return _addedDate; } set { _addedDate = value; } } string _description; /// <summary> /// 描述 /// </summary> public string Description { get { return _description; } set { _description = value; } } /// <summary> /// 空参构造 /// </summary> public Person() { } /// <summary> /// 全参构造 /// </summary> /// <param name="personId"></param> /// <param name="username"></param> /// <param name="sex"></param> /// <param name="age"></param> /// <param name="email"></param> /// <param name="addedDate"></param> /// <param name="description"></param> public Person(int personId, string username, string sex, int age, string email , DateTime addedDate, string description) { _personId = personId; _username = username; _sex = sex; _age = age; _email = email; _addedDate = addedDate; _description = description; } /// <summary> /// GetModel /// </summary> /// <returns></returns> public static Person GetModel() { Person dal = new Person(1001, "rain", "男", 24, "ylbtech@qq.com" , new DateTime(2013, 11, 21), "静以修身,俭以养德"); return dal; } } }
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1.B, ValidatesOnExpression |
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<Grid x:Name="gridDetailPerson" Background="White"> <Grid.RowDefinitions> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="100"></ColumnDefinition> <ColumnDefinition Width="*"></ColumnDefinition> <ColumnDefinition Width="100"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBlock Grid.Row="0" Grid.Column="0" Margin="7" Text="姓名"></TextBlock> <TextBox Grid.Row="0" Grid.Column="1" Margin="5" Text="{Binding Username}"></TextBox> <TextBlock Grid.Row="1" Grid.Column="0" Margin="7" Text="年龄"></TextBlock> <TextBox Grid.Row="1" Grid.Column="1" Margin="5" Text="{Binding Age,Mode=TwoWay,ValidatesOnExceptions=True}"></TextBox> </Grid>
2.3/3,
using System.Windows.Controls; using SL3ValidationYlbtechApp.Access; namespace SL3ValidationYlbtechApp.DataBinding.BindingADataObjects.Validation { public partial class ValidatesOnExpression : UserControl { public ValidatesOnExpression() { InitializeComponent(); gridDetailPerson.DataContext = Person.GetModel(); } } }
2B, Person.cs
int _age; //范围 /// <summary> /// 年龄 /// </summary> public int Age { get { return _age; } set { if (value < 0) throw new ArgumentException("不能小于0"); _age = value; } }
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1.C, NotifyOnValidationError返回顶部 |
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<Grid x:Name="gridDetailPerson" Background="White" BindingValidationError="gridDetailPerson_BindingValidationError"> <Grid.RowDefinitions> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> <RowDefinition Height="Auto"></RowDefinition> </Grid.RowDefinitions> <Grid.ColumnDefinitions> <ColumnDefinition Width="100"></ColumnDefinition> <ColumnDefinition Width="*"></ColumnDefinition> <ColumnDefinition Width="100"></ColumnDefinition> </Grid.ColumnDefinitions> <TextBlock Grid.Row="0" Grid.Column="0" Margin="7" Text="姓名"></TextBlock> <TextBox Grid.Row="0" Grid.Column="1" Margin="5" Text="{Binding Username}"></TextBox> <TextBlock Grid.Row="1" Grid.Column="0" Margin="7" Text="年龄"></TextBlock> <TextBox Grid.Row="1" Grid.Column="1" Margin="5" Name="txtAge" Text="{Binding Age,Mode=TwoWay,ValidatesOnExceptions=True, NotifyOnValidationError=True}"></TextBox> <TextBlock Grid.Row="3" Grid.Column="0" Grid.ColumnSpan="2" Margin="7" Name="txtBlkTip" Text="" Foreground="Red"></TextBlock> </Grid>
2.3/3,
using System.Windows.Controls; using SL3ValidationYlbtechApp.Access; namespace SL3ValidationYlbtechApp.DataBinding.BindingADataObjects.Validation { public partial class NotifyOnValidationError : UserControl { public NotifyOnValidationError() { InitializeComponent(); gridDetailPerson.DataContext = Person.GetModel(); } private void gridDetailPerson_BindingValidationError(object sender, ValidationErrorEventArgs e) { //显示错误 txtBlkTip.Text = e.Error.Exception.Message; txtBlkTip.Text += "\n存储值:" + ((Person)gridDetailPerson.DataContext).Age; //建议用户再试一次 txtAge.Focus(); } } }
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1.D,返回顶部 |
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