silverlight项目小结
最近又用silverlight做了一个小的东西,如图:
主要就是下边的导航,点击了后上边的大图和文字简介都跟着做相应的变化。
界面设计的思路:整个silverlight采用Grid布局,分为四个层,由下至上分别为:背景层、导航层、简介层、rss按钮层。其中简介层也为grid布局分两个部分,一个大图一个右边的文本区域,由于文本区域分四个部分而且文本长度不固定,所以这个区域选用StackPanel做布局。
导航部分用了“Silverlight Contrib”这个控件库中的“CoolMenu”控件。其自带的demo中是直接把各个Item写好在xaml中。这里我是需要从我的配置文件中读取数据后在加载到导航中。动态加载的方法如下:
在xaml中先实例化一个控件:
<sc:CoolMenu x:Name="xCoolMenu">
<sc:CoolMenu.Items>
<sc:CoolMenuItemCollection>
</sc:CoolMenuItemCollection>
</sc:CoolMenu.Items>
</sc:CoolMenu>
<sc:CoolMenu.Items>
<sc:CoolMenuItemCollection>
</sc:CoolMenuItemCollection>
</sc:CoolMenu.Items>
</sc:CoolMenu>
在再后台代码中加载:
foreach (DataModel dm in listData)
{
StreamResourceInfo sri = Application.GetResourceStream(new Uri("Heros;component/assets/" + dm.spic, UriKind.Relative));
BitmapImage bi = new BitmapImage();
bi.SetSource(sri.Stream);
Image img = new Image();
img.Source = bi;
img.Margin = new Thickness(15);
img.Cursor = Cursors.Hand;
img.DataContext = dm;
CoolMenuItem it = new CoolMenuItem();
it.Content = img;
it.Content.Width = 89;
it.Content.Height = 76;
xCoolMenu.Items.Add(it);
}
{
StreamResourceInfo sri = Application.GetResourceStream(new Uri("Heros;component/assets/" + dm.spic, UriKind.Relative));
BitmapImage bi = new BitmapImage();
bi.SetSource(sri.Stream);
Image img = new Image();
img.Source = bi;
img.Margin = new Thickness(15);
img.Cursor = Cursors.Hand;
img.DataContext = dm;
CoolMenuItem it = new CoolMenuItem();
it.Content = img;
it.Content.Width = 89;
it.Content.Height = 76;
xCoolMenu.Items.Add(it);
}
这里我的配置文件和所使用到的所有的图片是直接放到了silverlight项目中 。
所以再在这里顺便提上一个小技巧:从xap文件中读取文件
读取图片文件:
StreamResourceInfo sri = Application.GetResourceStream(new Uri("Heros;component/assets/" + dm.spic, UriKind.Relative));
BitmapImage bi = new BitmapImage();
bi.SetSource(sri.Stream);
Image img = new Image();
img.Source = bi;
BitmapImage bi = new BitmapImage();
bi.SetSource(sri.Stream);
Image img = new Image();
img.Source = bi;
读取XML文件并用Linq来初始化数据:
public void InitDataModel() {
StreamResourceInfo sri = Application.GetResourceStream(new Uri("Heros;component/Data/DataModel.xml", UriKind.Relative));
XmlReader reader = XmlReader.Create(sri.Stream);
XDocument document = XDocument.Load(reader);
listData = (from c in document.Descendants("model")
select new DataModel
{
t1 = c.Element("t1").Value,
t2 = c.Element("t2").Value,
t3 = c.Element("t3").Value,
url = c.Element("url").Value,
spic = c.Element("spic").Value,
bpic = c.Element("bpic").Value
}).ToList<DataModel>();
sri.Stream.Close();
sri.Stream.Dispose();
}
StreamResourceInfo sri = Application.GetResourceStream(new Uri("Heros;component/Data/DataModel.xml", UriKind.Relative));
XmlReader reader = XmlReader.Create(sri.Stream);
XDocument document = XDocument.Load(reader);
listData = (from c in document.Descendants("model")
select new DataModel
{
t1 = c.Element("t1").Value,
t2 = c.Element("t2").Value,
t3 = c.Element("t3").Value,
url = c.Element("url").Value,
spic = c.Element("spic").Value,
bpic = c.Element("bpic").Value
}).ToList<DataModel>();
sri.Stream.Close();
sri.Stream.Dispose();
}
这里做一个小的说明:
StreamResourceInfo sri = Application.GetResourceStream(new Uri("{0};component/{1}", UriKind.Relative));
0为xap程序集的名字,
1为要读取的文件在在xap中的路径。
项目很简单 :) 就写上这么多吧。
作者:nasa
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