Wpf XamlParseException数据网格
我得到了一个Wpf XamlParseException数据网格,wpf,xaml,mvvm,datagrid,Wpf,Xaml,Mvvm,Datagrid,我得到了一个XamlParseException,我不知道如何解决它。我希望能够控制输入 xaml 字典 <DataTemplate x:Key="ContactNameTemplate" > <TextBox HorizontalAlignment="Center" Validation.ErrorTemplate="{StaticResource validationTemplate}" Style="{StaticResource textBoxInError
XamlParseException
,我不知道如何解决它。我希望能够控制输入
xaml
字典
<DataTemplate x:Key="ContactNameTemplate" >
<TextBox HorizontalAlignment="Center" Validation.ErrorTemplate="{StaticResource validationTemplate}" Style="{StaticResource textBoxInError}">
<TextBox.Text>
<Binding Path="Name" Source="{Binding Name}" UpdateSourceTrigger="PropertyChanged">
<Binding.ValidationRules>
<c:Text Min="21" Max="130"/>
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
</TextBox>
</DataTemplate>
<DataTemplate x:Key="EditingContactNameTemplate">
<TextBox HorizontalAlignment="Center" Validation.ErrorTemplate="{StaticResource validationTemplate}" Style="{StaticResource textBoxInError}">
<TextBox.Text>
<Binding Path="Name" Source="{Binding Name}" UpdateSourceTrigger="PropertyChanged">
<Binding.ValidationRules>
<c:Text Min="21" Max="130"/>
</Binding.ValidationRules>
</Binding>
</TextBox.Text>
</TextBox>
</DataTemplate>
编辑
我的错误
PresentationFramework.dll中首次出现类型为“System.Windows.Markup.XamlParseException”的异常
其他信息:无法在Binding类型的源属性中设置绑定。绑定只能在DependencyObject的DependencyProperty中设置
<ControlTemplate x:Key="validationTemplate">
<DockPanel>
<TextBlock Foreground="Red" FontSize="20">!</TextBlock>
<AdornedElementPlaceholder/>
</DockPanel>
</ControlTemplate>
<Style x:Key="textBoxInError" TargetType="{x:Type TextBox}">
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self},Path=(Validation.Errors)[0].ErrorContent}"/>
</Trigger>
</Style.Triggers>
</Style>
public class Text : ValidationRule
{
private int _min;
private int _max;
public Text()
{
}
public int Min
{
get { return _min; }
set { _min = value; }
}
public int Max
{
get { return _max; }
set { _max = value; }
}
public override ValidationResult Validate(object value, System.Globalization.CultureInfo cultureInfo)
{
ValidationResult result;
string text;
if (((string)value).Length < Min || ((string)value).Length > Max)
{
text = value.ToString();
result = new ValidationResult(true, null);
}
else
{
text = "";
result = new ValidationResult(false, "De naam moet tss " + Min + " en " + Max);
}
return result;
}
}
!
公共类文本:ValidationRule
{
私人互联网;;
私人国际最大值;
公共文本()
{
}
公共int Min
{
获取{return\u min;}
设置{u min=value;}
}
公共整数最大值
{
获取{return\u max;}
设置{u max=value;}
}
公共覆盖验证结果验证(对象值,System.Globalization.CultureInfo CultureInfo)
{
验证结果;
字符串文本;
如果((字符串)值).LengthMax)
{
text=value.ToString();
结果=新的ValidationResult(真,空);
}
其他的
{
text=“”;
结果=新的验证结果(错误,“De naam moet tss”+最小值+“en”+最大值);
}
返回结果;
}
}
您已在另一个绑定的Source
属性中放置了一个绑定-如果DataContext
尚未包含所需的源,则源应该是应提供该值的目标对象:-Path
属性指定指向的对象上的绑定路径DataContext
或Source
。凭猜测我想说,您可能只是想从两个绑定中删除Source
属性。我删除了它,并且在PresentationFramework.dll中出现了“System.Windows.Markup.XamlParseException”类型的第一次异常。其他信息:指定的值System.Windows.Markup.StaticResourceHolder引发了异常。听起来您的资源出现了问题-您是否可以显示validationTemplate资源和textBoxInError资源-或者您的模板的datacontext不正确-您是否在运行时检查了datacontext?
<ControlTemplate x:Key="validationTemplate">
<DockPanel>
<TextBlock Foreground="Red" FontSize="20">!</TextBlock>
<AdornedElementPlaceholder/>
</DockPanel>
</ControlTemplate>
<Style x:Key="textBoxInError" TargetType="{x:Type TextBox}">
<Style.Triggers>
<Trigger Property="Validation.HasError" Value="true">
<Setter Property="ToolTip" Value="{Binding RelativeSource={x:Static RelativeSource.Self},Path=(Validation.Errors)[0].ErrorContent}"/>
</Trigger>
</Style.Triggers>
</Style>
public class Text : ValidationRule
{
private int _min;
private int _max;
public Text()
{
}
public int Min
{
get { return _min; }
set { _min = value; }
}
public int Max
{
get { return _max; }
set { _max = value; }
}
public override ValidationResult Validate(object value, System.Globalization.CultureInfo cultureInfo)
{
ValidationResult result;
string text;
if (((string)value).Length < Min || ((string)value).Length > Max)
{
text = value.ToString();
result = new ValidationResult(true, null);
}
else
{
text = "";
result = new ValidationResult(false, "De naam moet tss " + Min + " en " + Max);
}
return result;
}
}