DataBinding: 'System.Data.DataRowView' does not contain a property with the name

user_636824 0
Viewed 103239

I am getting this weird error... the primary key in my database is 'DocumentID' so I know that is not the issue. I am trying to get the select,edit & delete gridview buttons to work but I need the datakeynames to be set correctly for them to be available to use. any ideas?

<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]" />

Here is the stack trace...

    [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
sql-server-2005 asp.net
4 Answers

1- First step you have to select the Documentid column in SELECT statement 

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

2- You have to include it in datagridview COLUMN as you did:

<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>

3- If you are using Paging in datagridview AllowPaging="True" ,you have to SELECT also documentid on the event OnSelectedIndexChanged="GridView1_SelectedIndexChanged" to SELECT data in second and third page and so on: 

<asp:GridView ID="GridView1" runat="server" AllowPaging="True" DataSourceID="sdsDocuments" EnableModelValidation="True"
        SelectedIndex="0" OnSelectedIndexChanged="GridView1_SelectedIndexChanged" DataKeyNames="DocumentID, DocumentTitle, DocumentBody">

Then on the event OnSelectedIndexChanged="GridView1_SelectedIndexChanged" :

protected void GridView1_PageIndexChanging(object sender, GridViewPageEventArgs e)
{
                DataTable dt = // your SELECT statement //
                GridView1.DataSource = dt;
                GridView1.PageIndex = e.NewPageIndex;
                GridView1.DataBind();
}

if you dont use this void then you will get same error when you click page 2

user_96019890 
DataSet Année = new DataSet();
Année.ReadXml(Server.MapPath("~/Annees.xml"));

DropDownList1.DataTextField = "Number";
DropDownList1.DataValueField = "Number";
DropDownList1.DataSource = "Année";

DropDownList1.DataBind();
user_137995430
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