[英]How to bold & add “*” to TextBlock when Tab Can be saved
I have tabs representing documents, something like in Word. 我有代表文档的标签,就像在Word中一样。 My
TabControl
is bound to an ObservableCollection<TabViewModel>
. 我的
TabControl
绑定到ObservableCollection<TabViewModel>
。 TabViewModel
has a property CanSave
indicating whether a document can be save. TabViewModel
有一个属性CanSave
指示文件是否可以保存。 When it can be saved, I want to bold it and prefix it with an "*". 当可以保存它时,我想将其加粗并以“ *”作为前缀。 How can I do this?
我怎样才能做到这一点? I think I need to 1st make
CanSave
a DependencyProperty
. 我认为我需要1使
CanSave
一个DependencyProperty
。 And add a trigger. 并添加一个触发器。 But what about prefix the "*"?
但是前缀“ *”呢?
You don't need to make a DependencyProperty
; 您不需要创建
DependencyProperty
; you just need to implement INotifyPropertyChanged
. 您只需要实现
INotifyPropertyChanged
。
You can bind the property to the Visibility
of a separate <TextBlock>*</TextBlock>
and to the weight of the title using triggers. 您可以使用触发器将属性绑定到单独的
<TextBlock>*</TextBlock>
的“ Visibility
”,以及标题的权重。
A simple (maybe ugly, but should definitely work): 一个简单的(可能很难看,但绝对可以工作):
void CanSave(....)
{
bool canSave = GetValueBlahBlah();
if (tb.IsVisible != canSave)
tb.Visibility = canSave ? Visibility.Visible : Visibility.Collapsed;
}
tb
represents the TextBlock you wanna show and hide according to the CanSave state. tb
表示您要根据CanSave状态显示和隐藏的TextBlock。
You might also wanna create a DependencyProperty as you said and set the TextBlock
s (you will have to use a separate TextBlock for the star - or use Run
s which are bindable in WPF 4+) Visibility
/ FontWeight
according to it via DataTrigger
s. 你也可能想创建一个DependencyProperty如你所说,并设置
TextBlock
S(你将不得不使用的星级单独的TextBlock -或使用Run
,这种是在WPF绑定4+) Visibility
/ FontWeight
根据通过它DataTrigger
秒。
You could also set the titles of your tabs via binding.... 您还可以通过绑定设置选项卡的标题。
<TabControl >
<TabItem >
<TabItem.Header>
<TextBlock Text="{Binding TabTitle1}" />
<TabItem.Header>
</TabControl>
and then set the title on your data model 然后在数据模型上设置标题
Tab1Title="* " + "some nice tab title";
you could also use binding to set the font to bold.... 您还可以使用绑定将字体设置为粗体。
FontWeight="{Binding Tab1FontWeight}"
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