在银色指示灯中将默认值添加到ComboBox [英] Adding Default Value to ComboBox in silver light

问题描述

我写了Wcf Service来返回大学ID列表，并在Main.Xaml.cs文件中编写了事件处理程序，如下所示:

Hi,

I wrote Wcf Service for returning the university Id''s list and In Main.Xaml.cs file I Wrote Event Handler like Below:

ServiceReference1.WcfServiceClient client = new ServiceReference1.WcfServiceClient();
client.GetUnivIdListCompleted+=new EventHandler<GetUnivIdListCompletedEventArgs>(client_GetUnivIdListCompleted);
client.GetUnivIdListAsync();
void client_GetUnivIdListCompleted(object sender, GetUnivIdListCompletedEventArgs e)
        {
            cmbUniversity.ItemsSource = e.Result;        
        }

在上述cmbUniversity中，我的ComboBox名称是My ComboBox的名称，我将Wcf服务结果绑定到ComboBox的Itemsource属性.
现在，我必须在ComboBox中显示选择大学"文本.

我这样尝试过:

In Above cmbUniversity is My ComboBox name and I Binded Wcf service result to Itemsource property of ComboBox.

Now I have To Display "Select university" Text In ComboBox.

I tried like This:

cmbUniversity.Items.Insert(0,"Select university");

但是它不起作用.

请给我一些想法，如何插入该项目.

谢谢，
Vijay

But Its not working.

please Give me Some idea How To Insert That Item.

Thanks,
Vijay

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