/// <summary></summary>
/// <param name="sender"></param>
/// <param name="e"></param>
protected virtual void OnPreLoad(object sender, EventArgs e)
{
IEntity entity = null;
try
{
entity = Entity;
}
catch (XCodeException ex)
{
// 由下面自行处理,而不是抛出这个异常
if (!ex.Message.Contains("参数错误！无法取得编号为"))
{
throw;
}
}
// 判断实体
if (entity == null)
{
String msg = null;
Object eid = EntityID;
if (IsNew)
{
msg = String.Format("参数错误！无法取得编号为{0}的{2}({1})！可能未设置自增主键！", eid, Factory.TableName, Factory.Table.Description);
}
else
{
msg = String.Format("参数错误！无法取得编号为{0}的{2}({1})！", eid, Factory.TableName, Factory.Table.Description);
}
WebHelper.Alert(msg);
Response.Write(msg);
Response.End();
return;
}
Control btn = SaveButton;
Control btncopy = CopyButton;
if (!Page.IsPostBack)
{
if (ManagePage != null && ManagePage.Container != null && ManagePage.ValidatePermission)
{
CanSave = entity.IsNullKey && ManagePage.Acquire(PermissionFlags.Insert) || ManagePage.Acquire(PermissionFlags.Update);
// 复制只需要新增权限
if (btncopy != null)
{
btncopy.Visible = ManagePage.Acquire(PermissionFlags.Insert);
}
}
// 新增数据时，不显示复制按钮
if (IsNew && btncopy != null)
{
btncopy.Visible = false;
}
if (btn != null)
{
btn.Visible = CanSave;
if (btn is IButtonControl)
{
(btn as IButtonControl).Text = entity.IsNullKey ? "新增" : "更新";
}
}
//利用js控制按钮点击状态
//2013-1-14 @宁波-小董，注释下面2句：
//原因：这里在XCode默认网站后台没有问题，但在其他网站后台，如果利用js对表单进行验证，就会出现错误，
//验证不通过，这里也会执行js代码，“正在提交”，然后页面就死掉了
//不知道要怎么修改才能使得页面验证不通过时，这个就不执行。
//RegButtonOnClientClick(btn);
//RegButtonOnClientClick(btncopy);
SetForm();
}
else
{
// 如果外部设置了按钮事件，则这里不再设置
if (btn != null && btn is IButtonControl && ControlHelper.FindEventHandler(btn, "Click") == null)
{
(btn as IButtonControl).Click += delegate
{
GetForm();
if (ValidForm())
{
SaveFormWithTrans();
}
}
}
;
// 这里还不能保存表单，因为使用者习惯性在Load事件里面写业务代码，所以只能在Load完成后保存
//else if (Page.AutoPostBackControl == null)
//{
// GetForm();
// if (ValidForm()) SaveFormWithTrans();
//}
if (btncopy != null && btncopy is IButtonControl && ControlHelper.FindEventHandler(btncopy, "Click") == null)
{
(btncopy as IButtonControl).Click += delegate
{
GetForm();
// 清空主键，变成新增
IEntityOperate eop = EntityFactory.CreateOperate(Entity.GetType());
foreach (var item in eop.Fields)
{
if (item.PrimaryKey || item.IsIdentity)
{
Entity[item.Name] = null;
}
}
if (ValidForm())
{
SaveFormWithTrans();
}
}
}
;
}
}