Hi,
Are there any body who can help me with the following issue:
Placed GridView on ASP.net page:
<asp:GridView ID="gridUsers" runat="server" AutoGenerateColumns="false"
AllowPaging="true" CssClass="table table-striped" AllowSorting="true"
PageSize="10" DataKeyNames="Id">
...[there is column declaration but this is not important]
</asp:GridView>
Binded data to GridView:
LinqDataSource lds = new LinqDataSource() { AutoPage = true, AutoSort =
true, EnableUpdate = false, EnableInsert = false, EnableDelete = false};
lds.ContextTypeName = "admin.db.MyDC";
lds.TableName = "User";
gridUsers.DataSource = lds;
gridUsers.DataBind();
I have the following error on this page:
System.NullReferenceException: Object reference not set to an instance of an
object
at
System.Web.UI.WebControls.LinqDataSourceView+<ExecuteSelect>c__IteratorB.MoveNext
() [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.GridView.CreateChildControls (IEnumerable data,
Boolean dataBinding) [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.CompositeDataBoundControl.PerformDataBinding
(IEnumerable data) [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.GridView.PerformDataBinding (IEnumerable data)
[0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.DataBoundControl.InternalPerformDataBinding
(IEnumerable data) [0x00000] in <filename unknown>:0
at System.Web.UI.WebControls.DataBoundControl.OnSelect (IEnumerable data)
[0x00000] in <filename unknown>:0
at System.Web.UI.DataSourceView.Select
(System.Web.UI.DataSourceSelectArguments selectArgs,
System.Web.UI.DataSourceViewSelectCallback callBack) [0x00000] in <filename
unknown>:0
at System.Web.UI.WebControls.DataBoundControl.PerformSelect () [0x00000] in
<filename unknown>:0
at System.Web.UI.WebControls.BaseDataBoundControl.DataBind () [0x00000] in
<filename unknown>:0
at System.Web.UI.WebControls.GridView.DataBind () [0x00000] in <filename
unknown>:0
at admin.Users.BindTableData () [0x0005a] in
/home/alexander/Projects/oforme/admin/Users.aspx.cs:100
at admin.Users.Page_Load (System.Object sender, System.EventArgs e) [0x00025]
in /home/alexander/Projects/oforme/admin/Users.aspx.cs:25
at System.Web.UI.Control.OnLoad (System.EventArgs e) [0x00000] in <filename
unknown>:0
at System.Web.UI.Control.LoadRecursive () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.ProcessLoad () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.ProcessPostData () [0x00000] in <filename unknown>:0
at System.Web.UI.Page.InternalProcessRequest () [0x00000] in <filename
unknown>:0
at System.Web.UI.Page.ProcessRequest (System.Web.HttpContext context)
[0x00000] in <filename unknown>:0
*Important notification:* This code works fine for
DbLinq+MySQL+Mono+Windows. Described error occures for
DbLinq+MySQL+Mono+Ubuntu.
Thank you.
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