silverlight客户端验证控件ValidationSummary及DescriptionViewer
代码
1
using
System;
2
using
System.Collections.Generic;
3
using
System.Linq;
4
using
System.Net;
5
using
System.Windows;
6
using
System.Windows.Controls;
7
using
System.Windows.Documents;
8
using
System.Windows.Input;
9
using
System.Windows.Media;
10
using
System.Windows.Media.Animation;
11
using
System.Windows.Shapes;
12
using
System.ComponentModel;
13
using
System.ComponentModel.DataAnnotations;
14
namespace
ValidateTest
15
{
16
public
partial
class
MainPage : UserControl
17
{
18
ViewModel data;
19
public
MainPage()
20
{
21
InitializeComponent();
22
data
=
new
ViewModel() { Id
=
3
, Name
=
"
gaoshengjie
"
, Age
=
20
};
23
this
.DataContext
=
data;
24
25
}
26
27
private
void
Button_Click(
object
sender, RoutedEventArgs e)
28
{
29
MessageBox.Show(data.Id.ToString());
30
}
31
}
32
public
class
ViewModel:INotifyPropertyChanged
33
{
34
public
event
PropertyChangedEventHandler PropertyChanged;
35
public
void
NotifyPropertyChanged(
string
propertyName)
36
{
37
if
(
this
.PropertyChanged
!=
null
)
38
{
39
this
.PropertyChanged(
this
,
new
PropertyChangedEventArgs(propertyName));
40
}
41
}
42
private
int
id;
43
private
string
name;
44
private
int
age;
45
[Display(Name
=
"
年龄
"
, Description
=
"
必须在18以上
"
)]
46
[Range(
18
,
150
,ErrorMessage
=
"
不能小于18岁!
"
)]
47
[Required(ErrorMessage
=
"
不能为空!
"
)]
48
public
int
Age
49
{
50
get
51
{
52
return
age;
53
}
54
set
55
{
56
Validator.ValidateProperty(value,
new
ValidationContext(
this
,
null
,
null
) { MemberName
=
"
Age
"
});
57
age
=
value;
58
this
.NotifyPropertyChanged(
"
Age
"
);
59
}
60
}
61
[Display(Name
=
"
姓名
"
, Description
=
"
不能为空
"
)]
62
[RegularExpression(
@"
^gao[a-zA-Z]{1,50}$
"
, ErrorMessage
=
"
必须以gao开头!
"
)]
63
[Required(ErrorMessage
=
"
不能为空!
"
)]
64
public
string
Name
65
{
66
get
67
{
68
return
name;
69
}
70
set
71
{
72
Validator.ValidateProperty(value,
new
ValidationContext(
this
,
null
,
null
) { MemberName
=
"
Name
"
});
73
name
=
value;
74
this
.NotifyPropertyChanged(
"
Name
"
);
75
}
76
}
77
[Display(Name
=
"
编号
"
, Description
=
"
唯一标识,必须大于1!
"
)]
78
[Range(
1
,
9999
, ErrorMessage
=
"
范围在1-9999
"
)]
79
[Required(ErrorMessage
=
"
不能为空!
"
)]
80
public
int
Id
81
{
82
get
83
{
84
return
id;
85
}
86
set
87
{
88
Validator.ValidateProperty(value,
new
ValidationContext(
this
,
null
,
null
) { MemberName
=
"
Id
"
});
89
id
=
value;
90
this
.NotifyPropertyChanged(
"
Id
"
);
91
}
92
}
93
}
94
}
95
代码
1
<
UserControl
xmlns:sdk
="http://schemas.microsoft.com/winfx/2006/xaml/presentation/sdk"
2
x:Class
="ValidateTest.MainPage"
3
xmlns
="http://schemas.microsoft.com/winfx/2006/xaml/presentation"
4
xmlns:x
="http://schemas.microsoft.com/winfx/2006/xaml"
5
xmlns:d
="http://schemas.microsoft.com/expression/blend/2008"
6
xmlns:mc
="http://schemas.openxmlformats.org/markup-compatibility/2006"
7
mc:Ignorable
="d"
8
9
d:DesignHeight
="300"
d:DesignWidth
="400"
>
10
11
<
StackPanel
x:Name
="LayoutRoot"
Background
="White"
>
12
<
StackPanel
Orientation
="Horizontal"
>
13
<
TextBox
x:Name
="txtId"
Text
="
{Binding Id,Mode=TwoWay,ValidatesOnExceptions=true, NotifyOnValidationError=true}
"
></
TextBox
>
14
<
sdk:DescriptionViewer
Target
="
{Binding ElementName=txtId}
"
/>
15
</
StackPanel
>
16
<
StackPanel
Orientation
="Horizontal"
>
17
<
TextBox
x:Name
="txtName"
Text
="
{Binding Name,Mode=TwoWay,ValidatesOnExceptions=true, NotifyOnValidationError=true}
"
></
TextBox
>
18
<
sdk:DescriptionViewer
Target
="
{Binding ElementName=txtName}
"
/>
19
</
StackPanel
>
20
<
StackPanel
Orientation
="Horizontal"
>
21
<
TextBox
x:Name
="txtAge"
Text
="
{Binding Age,Mode=TwoWay,ValidatesOnExceptions=true, NotifyOnValidationError=true}
"
></
TextBox
>
22
<
sdk:DescriptionViewer
Target
="
{Binding ElementName=txtAge}
"
/>
23
</
StackPanel
>
24
<
Button
Content
="提交"
Click
="Button_Click"
/>
25
<
sdk:ValidationSummary
/>
26
</
StackPanel
>
27
</
UserControl
>
28
需要注意的是:
1.命名空间的引用
using System.ComponentModel;
using System.ComponentModel.DataAnnotations;
引用以后才可以使用以下内容
[Display(Name = "年龄", Description = "必须在18以上")]
[Range(18, 150,ErrorMessage="不能小于18岁!")]
[Required(ErrorMessage="不能为空")]s
[RegularExpression(@"^gao[a-zA-Z]{1,50}$", ErrorMessage = "必须以gao开头!")]
Validator.ValidateProperty(value, new ValidationContext(this, null, null) { MemberName = "Age" });2.DescriptionViewerValidationSummary这两个控件如果没有有工具箱中找到则可以"右键-选择项"在弹出的对话框中找到对应的选中后点确定即可.