DataBinding:'System.Data.DataRowView'不包含具有名称的属性

Question

我收到这个奇怪的错误...我的数据库中的主键是'DocumentID'所以我知道这不是问题.我正在尝试选择,编辑和删除gridview按钮,但我需要正确设置datakeynames才能使用它们.有任何想法吗？

<asp:GridView ID="GridView1" runat="server" DataSourceID="sdsDocuments" EnableModelValidation="True"
        SelectedIndex="0" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" DataKeyNames="DocumentID, DocumentTitle, DocumentBody">
        <Columns>
            <asp:BoundField DataField="DocumentID" HeaderText="DocumentID" ReadOnly="True" SortExpression="ID" />
            <asp:BoundField DataField="DocumentTitle" HeaderText="DocumentTitle" SortExpression="Title" />
            <asp:BoundField DataField="DocumentBody" HeaderText="DocumentBody" SortExpression="Body" />
            <asp:CommandField ShowSelectButton="True" ShowDeleteButton="True" />
        </Columns>
    </asp:GridView>
    <asp:SqlDataSource ID="sdsDocuments" runat="server" ConnectionString="<%$ ConnectionStrings:blcDocumentationConnectionString %>"
        SelectCommand="SELECT [DocumentTitle], [DocumentBody] FROM [tblDocument]" />

这是堆栈跟踪......

    [HttpException (0x80004005): DataBinding: 'System.Data.DataRowView' does not contain a                 property with the name 'DocumentID'.] 
        System.Web.UI.DataBinder.GetPropertyValue(Object container, String propName) +8672869
       System.Web.UI.WebControls.GridView.CreateChildControls(IEnumerable dataSource, Boolean dataBinding) +2178
       System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding(IEnumerable data) +57
       System.Web.UI.WebControls.GridView.PerformDataBinding(IEnumerable data) +14
       System.Web.UI.WebControls.DataBoundControl.OnDataSourceViewSelectCallback(IEnumerable data) +114
       System.Web.UI.DataSourceView.Select(DataSourceSelectArguments arguments, DataSourceViewSelectCallback callback) +31
       System.Web.UI.WebControls.DataBoundControl.PerformSelect() +142
       System.Web.UI.WebControls.BaseDataBoundControl.DataBind() +73
       System.Web.UI.WebControls.GridView.DataBind() +4
       System.Web.UI.WebControls.BaseDataBoundControl.EnsureDataBound() +82
       System.Web.UI.WebControls.CompositeDataBoundControl.CreateChildControls() +72
       System.Web.UI.Control.EnsureChildControls() +87
       System.Web.UI.Control.PreRenderRecursiveInternal() +44
       System.Web.UI.Control.PreRenderRecursiveInternal() +171
       System.Web.UI.Control.PreRenderRecursiveInternal() +171

   System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +842

Answer 1

好吧,您还没有选择该documentid列,因此它不存在于您绑定到网格的数据表或数据视图中,或者通过数据表引用该列.

将您的查询更改为

 SelectCommand="SELECT [DocumentID],[DocumentTitle], [DocumentBody] FROM [tblDocument]" />