将2个参数从SharePoint Web部件项目传递到Silverlight控件到Silverlight应用程序

问题描述

我在SharePoint Web部件项目中定义了2个参数，当用户从2个组合框(可浏览的属性)中进行选择时，这些参数将传递到Silverlight应用程序的Application_Startup()中.当我将其加载到SharePoint网站上时，Silverlight控件无法以某种方式呈现.传入1个参数后，控件将显示无错误.有任何想法吗?句法?例子吗?

I have 2 parameters defined in SharePoint web part project, meant to be passed into Application_Startup() in a Silverlight application when a user selects from 2 combo boxes (browsable properties). Somehow the Silverlight control does not render when i load it on the SharePoint site. With 1 parameter passed in, the control displays without error. Any ideas? Syntax? Examples?

App.xaml.cs:

App.xaml.cs:

private void Application_Startup(object sender, StartupEventArgs e)
{
    //testing
    string _setArticles = null;
    string _setLength = null;
    if (e.InitParams != null && e.InitParams.Count >= 1)
    {
        _setArticles = e.InitParams["_setArticles"];
        _setLength = e.InitParams["_setLength"];
    }
    this.RootVisual = new Page(_setArticles, _setLength);
}

Page.xaml.cs:

Page.xaml.cs:

public Page(string _setArticles, string _setLength)
{
    InitializeComponent();

    //(number of items to display on load)
    if (!string.IsNullOrEmpty(_setArticles) && !string.IsNullOrEmpty(_setLength) )
    {
        if (_setArticles.Equals("_1_article"))
            retrieveOneListboxItemStaffNews();
            GetData3();
        if (_setArticles.Equals("_2_articles"))
            retrieveTwoListboxItemStaffNews();
            GetData3();
       if (_setArticles.Equals("_3_articles"))
            retrieveThreeListboxItemStaffNews();
            GetData3();

       //testing
       //send value to method 'fullNameControl_Loaded' (summary length of each ListBox item)
       if (_setLength.Equals("_3_lines"))
            m_textBlock.MaxHeight = 40;
       if (_setLength.Equals("_4_lines"))
            m_textBlock.MaxHeight = 50;
       if (_setLength.Equals("_5_lines"))
            m_textBlock.MaxHeight = 65;
    }
}

SilverlightSecondWebPart.cs:

SilverlightSecondWebPart.cs:

protected override void CreateChildControls()
{
    base.CreateChildControls();

    //silverlight control
    silverlightControl = new Silverlight();
    silverlightControl.ID = "News";
    silverlightControl.Source = "/ClientBin/News.xap";
    silverlightControl.Width = new System.Web.UI.WebControls.Unit(800);
    silverlightControl.Height = new System.Web.UI.WebControls.Unit(550);


    //testing
    string parameters =  "_setArticles=" + _myEnum + ", " + "_setLength=" + _myEnum2;
    silverlightControl.InitParameters = parameters;
    silverlightControl.MinimumVersion = "2.0";

    Controls.Add(silverlightControl);
}

推荐答案

随时使用

if (_setArticles.Equals("_1_article"))
{
    retrieveOneListboxItemStaffNews();
    GetData3();
}
if (_setArticles.Equals("_2_articles"))
{
    retrieveTwoListboxItemStaffNews();
    GetData3();
}
if (_setArticles.Equals("_3_articles"))
{
    retrieveThreeListboxItemStaffNews();
    GetData3();
}

否则，将始终调用GetData3()，每次3次.

otherwise GetData3() will be called anyway, 3 times each time.

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