有效的ClientContext Web列表GetByTitle返回Null [英] Valid ClientContext Web Lists GetByTitle returns Null

问题描述

您好，我是SharePoint开发的新手，它试图从页面中获取信息.我已经在VB中找到了一种可行的方法，通过在其他列表中的使用证明了这一点.

Hi, i am relatively new to SharePoint development, and trying to grab information from a page. I already have a working method in VB, proven through usage on other list.

下面是我的代码:

Public Sub getWiki(ctx As ClientContext)

    Dim WaterIce As SP.List = ctx.Web.Lists.GetByTitle("Water & Ice WIKI")
    Dim camlQuery As New CamlQuery

    camlQuery.ViewXml = "<Query><Where><And><Contains><FieldRef Name='FileLeafRef' /><Value Type='File'>home</Value></Contains><IsNotNull><FieldRef Name='WikiField' /></IsNotNull></And></Where></Query>"

    Dim collatedListItem As ListItemCollection = WaterIce.GetItems(camlQuery)

    ctx.Load(collatedListItem)
    ctx.ExecuteQuery()

    Dim oListItem As ListItem

    For Each oListItem In collatedListItem

        htmlString = oListItem.FieldValues("WikiField").ToString()
        'MsgBox(htmlString)

        If htmlString <> "" Or htmlString IsNot Nothing Then

            Exit For

        End If
    Next

    WaterIceInnerDiv.InnerHtml = htmlString

End Sub

我尝试自己调试它，并且错误总是在NullException的以下行出现:

I tried debugging it myself, and the error always hit at the following line with NullException:

htmlString = oListItem.FieldValues("WikiField").ToString()

我尝试使用其他列表名称(例如"Water")的方法，但效果很好.我相信这是由于&符，以及有关如何显示此问题的任何指导?

I tried the method with other list name for example "Water", it is working fine. I believe it is due to the ampersand, any guidance on how I can show the issue? 

我也尝试过"Water& amp; amp; Ice WIKI"，"Water& amp; amp; amp; Ice WIKI"和水％20％20& Ice％20Ice％20WIKI"

I also have tried "Water & Ice WIKI", "Water && Ice WIKI" and "Water%20%20&Ice%20Ice%20WIKI" and error i will get is the page does not exist. 

推荐答案

Hi Tan，

Hi Tan,

尝试以下一项是否有效:

Try whether the below one works:

水％20％20Ice％20WIKI(或)水和冰WIKI(水和冰之间的两倍距离)

Water%20%20Ice%20WIKI (or) Water  Ice WIKI (double space between water and Ice)

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