我使用MvcxGridView来绑定DataTable模型，我遇到了DataColumn数据类型为System.Byte[]的问题。
System.Byte[]。我希望GridView在该列中显示图片。当我保存数据时，收到此消息：
来自＆＃39; System.String＆＃39;的无效演员表到＆＃39; System.Byte []＆＃39;
我该如何解决这些问题？
以下是我的代码：
@using System.Data;
@model TestPA6MVC.Models.EntityModelForViewDataSettingGrid
@functions{
MVCxGridViewCommandColumn CreateCommandColumn(string AllowEdit,string AllowAdd)
{
MVCxGridViewCommandColumn column = new MVCxGridViewCommandColumn();
column.Visible = true;
column.NewButton.Visible = (AllowAdd.ToLower()=="true")?true:false;
column.DeleteButton.Visible = (AllowEdit.ToLower() == "true") ? true : false; ;
//column.EditButton.Visible = true;
return column;
}
}
@{
var grid = Html.DevExpress().GridView(
settings => {
settings.Name = "gvEditing";
settings.CallbackRouteValues = new {
Controller = "Home", Action = "GridViewPartial",
ViewName = Model.ViewName,
PrimaryKeyCollection = Model.PrimaryKeyCollection,
TableEditorList = Model.TableEditorList,
ColumnComboBoxCollection = Model.ColumnComboBoxCollection,
ColumnReadOnlyCollection = Model.ColumnReadOnlyCollection,
ColumnHideCollection = Model.ColumnHideCollection,
ParamNameCollection = Model.ParamNameCollection,
DataForParamCollection = Model.DataForParamCollection,
ParamTypeCollection = Model.ParamTypeCollection,
AllowAdd = Model.AllowAdd,
AllowEdit = Model.AllowEdit
};
settings.SettingsEditing.AddNewRowRouteValues = new { Controller = "Home", Action = "GridViewPartialAddNew", ViewName = Model.ViewName };
settings.SettingsEditing.UpdateRowRouteValues = new { Controller = "Home", Action = "GridViewPartialUpdate", ViewName = Model.ViewName };
settings.SettingsEditing.DeleteRowRouteValues = new { Controller = "Home", Action = "GridViewPartialDelete", ViewName = Model.ViewName };
settings.SettingsEditing.BatchUpdateRouteValues = new {
Controller = "Home", Action = "BatchEditingUpdateModel",
ViewName = Model.ViewName,
PrimaryKeyCollection = Model.PrimaryKeyCollection,
TableEditorList = Model.TableEditorList,
ColumnComboBoxCollection = Model.ColumnComboBoxCollection,
ColumnReadOnlyCollection = Model.ColumnReadOnlyCollection,
ColumnHideCollection = Model.ColumnHideCollection,
ParamNameCollection = Model.ParamNameCollection,
DataForParamCollection = Model.DataForParamCollection,
ParamTypeCollection = Model.ParamTypeCollection,
AllowAdd = Model.AllowAdd,
AllowEdit = Model.AllowEdit
};
if (Model.AllowEdit.ToLower() == "true")
{
settings.SettingsEditing.Mode = GridViewEditingMode.Batch;//Kieu view chinh sua
}
else { settings.SettingsEditing.Mode = GridViewEditingMode.PopupEditForm; }
settings.SettingsBehavior.ConfirmDelete = true;//Cho phep hien thi thong bao xac nhan
settings.SettingsBehavior.ColumnResizeMode = ColumnResizeMode.Control;//Cho phep chinh sua do rong cot
settings.Width = 800;//Chieu rong cua gridview
settings.Settings.HorizontalScrollBarMode = ScrollBarMode.Auto;
settings.SettingsPager.Mode = GridViewPagerMode.ShowPager;
settings.SettingsPager.PageSize = 50;
settings.Settings.VerticalScrollableHeight = 300;
settings.Settings.VerticalScrollBarMode = ScrollBarMode.Auto;
settings.SettingsPager.Visible = true;
settings.Settings.ShowGroupPanel = true;
settings.Settings.ShowFilterRow = true;
settings.Settings.ShowHeaderFilterButton = true;//Hien thi bo loc cho column
//Tao cot gia de tranh tinh trang hien thi lai cac Column an khi Callback
MVCxGridViewColumn fakeco = new MVCxGridViewColumn();
fakeco.Visible = false;
fakeco.Width = 0;
fakeco.EditFormSettings.Visible = DefaultBoolean.False;
settings.Columns.Add(fakeco);
settings.SettingsBehavior.AllowSelectByRowClick = true;
settings.DataBound = (sender, e) =>
{
//Build Column Tool Automatic
((MVCxGridView)sender).Columns.Insert(0, CreateCommandColumn(Model.AllowEdit,Model.AllowAdd));
//Add custom Column
foreach (var child in Model.ModelForDisplayColumnList)
{
MVCxGridViewColumn dc = new MVCxGridViewColumn();
dc.Caption = child.Caption;
dc.FieldName = child.ColumnName;
if(child.IsHidden)//Neu de an hoan toan se khong lay duoc du lieu da chinh sua
{ dc.Width = 0; }
//dc.Visible = !child.IsHidden;
dc.ReadOnly = child.IsReadOnly;
switch (child.DataType)
{
case "datetime":
dc.ColumnType = MVCxGridViewColumnType.DateEdit;
var DateEditProperties = dc.PropertiesEdit as DateEditProperties;
DateEditProperties.DisplayFormatString = "dd/MM/yyyy hh:mm tt";
//Cho phep chinh ngay, gio
DateEditProperties.UseMaskBehavior = true;
//Dinh dang hien thi khi chinh sua
DateEditProperties.EditFormat = EditFormat.Custom;
DateEditProperties.EditFormatString = "dd/MM/yyyy hh:mm tt";
DateEditProperties.TimeSectionProperties.Visible = true;//Hien khung chinh gio
break;
case "combobox":
dc.ColumnType = MVCxGridViewColumnType.ComboBox;
var DropDownEditProperties = dc.PropertiesEdit as ComboBoxProperties;
DropDownEditProperties.DataSource = child.DataSourceForComboBoxColumn;
DropDownEditProperties.ValueField = child.DataSourceForComboBoxColumn.Columns[0].ColumnName;
DropDownEditProperties.TextFormatString = "{0}";
foreach (DataColumn childcolumn in child.DataSourceForComboBoxColumn.Columns)
{
DropDownEditProperties.Columns.Add(childcolumn.ColumnName, childcolumn.ColumnName);
}
break;
case "boolean":
case "bit":
dc.ColumnType = MVCxGridViewColumnType.CheckBox;
break;
case "byte[]":
dc.ColumnType = MVCxGridViewColumnType.BinaryImage;
//var ImageEditProperties = dc.PropertiesEdit as BinaryImageEditProperties;
//ImageEditProperties.ImageWidth = 50;
//ImageEditProperties.ImageHeight = 50;
break;
//case "string":
// dc.ColumnType = MVCxGridViewColumnType.ComboBox;
// var ComboBoxEditProperties = dc.PropertiesEdit as ComboBoxProperties;
// ComboBoxEditProperties.DataSource = ModelForDisplayColumnList;
// ComboBoxEditProperties.TextField = "DataType";
// ComboBoxEditProperties.ValueField = "Caption";
// break;
}
((MVCxGridView)sender).Columns.Add(dc);
}
};
settings.KeyFieldName = Model.PrimaryKeyCollection;
});
if (ViewData["EditError"] != null){
grid.SetEditErrorText((string)ViewData["EditError"]);
}
}
@grid.Bind(Model.DataSourceForGrid).GetHtml()