Question

我在Sharepoint中有一个自定义搜索webpart，它有7个过滤器。我使用CAML Query从Sharepoint列表中获取数据。我想编写一个通用的SPQuery，它将根据搜索参数过滤出数据。搜索参数是可选的。如果用户输入任何2个参数，那么我需要获得与指定的2个参数相对应的数据。如何使用CAML Query实现此目的？我无法想到基于搜索参数生成我的caml查询的通用方法..

Answer 1

以下是我在Silverlight中使用的一些代码，用于根据搜索参数生成CAML查询。也许它很有帮助。

    private ClientContext context;
    private Microsoft.SharePoint.Client.List SampleSPList;
    private Microsoft.SharePoint.Client.ListItemCollection SampleSPCollection;

    //Load the List
    void LoadList()
    {
        SampleSPList = context.Web.Lists.GetByTitle("Sample");
        context.Load(SampleSPList);

        CamlQuery query = new Microsoft.SharePoint.Client.CamlQuery();

        string camlQueryXml = "";
        bool existsWhere = false;

        if (searchString.Text != "")
        {
            camlQueryXml = camlQueryXml + "<Contains><FieldRef Name='sampleString' /><Value Type='Text'>" + searchString.Text + "</Value></Contains>";
            if (existsWhere == true) {
                camlQueryXml = "<And>" + camlQueryXml + "</And>";
            }
            existsWhere = true;
        }

        if (searchTextArea.Text != "")
        {
            camlQueryXml = camlQueryXml + "<Contains><FieldRef Name='sampleTextArea' /><Value Type='Text'>" + searchTextArea.Text + "</Value></Contains>";
            if (existsWhere == true)
            {
                camlQueryXml = "<And>" + camlQueryXml + "</And>";
            }
            existsWhere = true;
        }

        if (existsWhere == true) { camlQueryXml = "<View><Query><OrderBy><FieldRef Name='ID' /></OrderBy><Where>" + camlQueryXml + "</Where></Query></View>"; }
        else { camlQueryXml = "<View><Query><OrderBy><FieldRef Name='ID' /></OrderBy></Query></View>"; }

        query.ViewXml = camlQueryXml;

        SampleSPCollection = SampleSPList.GetItems(query);
        context.Load(SampleSPCollection);
        context.ExecuteQueryAsync(ListLoaded, ListLoadFailed);
    }

Answer 2

实际上通过编写逻辑来动态生成spquery来解决问题

如何在sharepoint中对可选搜索值使用caml查询

2 个答案: