Dev Express Mvc Editing GridViewSetting error? - asp.net-mvc

Question

my code is too long so sorry :)
#model IEnumerable<Osos11.Models.Customers>
#Html.DevExpress().GridView(
settings =>
{
settings.Name = "gvEditing";
settings.KeyFieldName = "sno";
settings.CallbackRouteValues = new { Controller = "Customer", Action = "EditingPartial" };
settings.Width = System.Web.UI.WebControls.Unit.Percentage(100);
settings.Columns.Add(column =>
{
column.Caption = "#";
column.SetDataItemTemplateContent(c =>
{
ViewContext.Writer.Write(
Html.ActionLink("Edit", "EditingEdit", new { sno = DataBinder.Eval(c.DataItem, "sno") }) + " " +
Html.ActionLink("Delete", "EditingDelete", new { sno = DataBinder.Eval(c.DataItem, "sno") },
new { onclick = "return confirm('Do you really want to delete this record?')" })
);
});
column.SetHeaderTemplateContent(c =>
{
ViewContext.Writer.Write(
Html.ActionLink("New", "EditingEdit", new { sno = -1 }).ToHtmlString()
);
});
column.Settings.AllowDragDrop = DefaultBoolean.False;
column.Settings.AllowSort = DefaultBoolean.False;
column.Width = 70;
});
settings.Columns.Add("Name");
//settings.Columns.Add(column =>
//{
// column.FieldName = "CategoryID";
// column.Caption = "Category";
// column.ColumnType = MVCxGridViewColumnType.ComboBox;
// var comboBoxProperties = column.PropertiesEdit as ComboBoxProperties;
// comboBoxProperties.DataSource = NorthwindDataProvider.GetCategories();
// comboBoxProperties.TextField = "CategoryName";
// comboBoxProperties.ValueField = "CategoryID";
// comboBoxProperties.ValueType = typeof(int);
//});
settings.Columns.Add("CustomerNumber");
//settings.Columns.Add("UnitPrice").PropertiesEdit.DisplayFormatString = "c";
//settings.Columns.Add("UnitsInStock");
//settings.Columns.Add("Discontinued", MVCxGridViewColumnType.CheckBox);
settings.ClientLayout = (s, e) =>
{
if (e.LayoutMode == ClientLayoutMode.Loading)
{
if (Session["GridState"] != null)
e.LayoutData = (string)Session["GridState"];
}
else
Session["GridState"] = e.LayoutData;
};
settings.PreRender = (s, e) =>
{
if (ViewData["VisibleID"] == null) return;
ASPxGridView grid = (ASPxGridView)s;
grid.MakeRowVisible(ViewData["VisibleID"]);
};
}).Bind(Model).GetHtml()
I got this error
Compiler Error Message: CS1660: Cannot convert lambda expression to type 'DevExpress.Web.Mvc.GridViewSettings' because it is not a delegate type

Answer 1

It seems that this issue is caused by the fact that any expression in the GridView's definition is not valid.
As a result, the entire GridView's definition (lambda expression) cannot be recognized by the View Engine.