先上圖吧：
為了便于看清楚，我的MyGridView的SelectionMode= "Multiple".可以可按到第二個(gè)選項(xiàng)是灰色的，不能點(diǎn)擊了。
1. 首先，在你的數(shù)據(jù)源中添加一個(gè)bool類型的標(biāo)識(shí)，假設(shè)我們的數(shù)據(jù)源為DataItem類型：
1 1 public ref class DataItem
2 2 {
3 3 public:
4 4 DataItem();
5 5 property bool Disabled;
6 6 };
2. 重新寫一個(gè)新類，基類為GridView，重寫它的
PrepareContainerForItemOverride方法
1 public ref class MyGridView sealed: GridView
2 {
3 public:
4 protected:
5 virtual void PrepareContainerForItemOverride( DependencyObject^ element,Platform::Object^ item ) override
6 {
7 GridView::PrepareContainerForItemOverride(element, item);
8 //獲得數(shù)據(jù)
9 auto viewMode = (DataItem^)(item);
10 //可以轉(zhuǎn)換成UIElement
11 UIElement^ uiElement = safe_cast<UIElement^>(element);
12 //也可以轉(zhuǎn)換成GridViewItem類型，為了使用IsEnable屬性，我們暫時(shí)轉(zhuǎn)換為GridViewItem類型
13 GridViewItem^ gridViewItem = safe_cast<GridViewItem^>(element);
14 //設(shè)置該項(xiàng)的GridView的IsEnable屬性
15 gridViewItem->IsEnabled = viewMode->Disabled;
16
17 //下面的代碼是實(shí)現(xiàn)一個(gè)可變尺寸的GridView
18 Binding^ colBinding = ref new Binding();
19 colBinding->Source = viewMode;
20 colBinding->Path = ref new PropertyPath(this->ColumnSpanProperty);
21 BindingOperations::SetBinding(uiElement,Windows::UI::Xaml::Controls::VariableSizedWrapGrid::ColumnSpanProperty, colBinding);
22
23 Binding^ rowBinding = ref new Binding();
24 rowBinding->Source = viewMode;
25 rowBinding->Path = ref new PropertyPath(this->RowSpanProperty);
26 BindingOperations::SetBinding(uiElement, Windows::UI::Xaml::Controls::VariableSizedWrapGrid::RowSpanProperty, rowBinding);
27 }
28 }
29 }；
然后只要在跟我們的MyGridView綁定的數(shù)據(jù)源中設(shè)置Disabled屬性就可以了
MainPage::MainPage()
{
//保存了一個(gè)DataItem的Vector
DataItemVector^ databox = ref new DataItemVector();
for(int i = 0; i < 10; i++)
{
DataItem^ myData = ref new DataItem();
if(i == 1)
myData->Disabled = true;
databox->ItemVector->Append(myData);
}
//MyGridView的對(duì)象，在XAML文件中初始化的
myGridView->ItemSource = databox;
}
posted on 2013-01-10 11:02
Dino-Tech 閱讀(1370)
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Windows 8