// id 参数名应该与控件上设置的 DataKeyNames 值匹配
public void lvDepartmentMonitor_UpdateItem(Int64 id)
{
TextBox txtEditValue = new TextBox();
txtEditValue = (TextBox)lvDepartmentMonitor.EditItem.FindControl("txtValue");
var value = txtEditValue?.Text;
if (String.IsNullOrEmpty(value))
{
return;
}
using (MonitorDbContext context = new MonitorDbContext())
{
IMS.Models.DepartmentMonitor item = null;
// 在此加载该项，例如 item = MyDataLayer.Find(id);
item = context.DepartmentMonitors.Find(id);
if (item == null)
{
// 未找到该项
ModelState.AddModelError("", String.Format("未找到 id 为 {0} 的项", id));
return;
}
TryUpdateModel(item);
if (ModelState.IsValid)
{
// 在此保存更改，例如 MyDataLayer.SaveChanges();
item.Value = value;
//database win
bool saveFailed;
do
{
saveFailed = false;
try
{
context.SaveChanges();
}
catch (DbUpdateConcurrencyException ex)
{
saveFailed = true;
// Update the values of the entity that failed to save from the store
ex.Entries.Single().Reload();
}
} while (saveFailed);
}
}
}
// id 参数名应该与控件上设置的 DataKeyNames 值匹配
public void lvDepartmentMonitor_DeleteItem(Int64 id)
{
using (MonitorDbContext context = new MonitorDbContext())
{
IMS.Models.DepartmentMonitor item = null;
item = context.DepartmentMonitors.Find(id);
if (item == null)
{
// 未找到该项
ModelState.AddModelError("", String.Format("未找到 id 为 {0} 的项", id));
return;
}
TryUpdateModel(item);
if (ModelState.IsValid)
{
// 在此保存更改，例如 MyDataLayer.SaveChanges();
context.DepartmentMonitors.Remove(item);
//database win
bool saveFailed;
do
{
saveFailed = false;
try
{
context.SaveChanges();
}
catch (DbUpdateConcurrencyException ex)
{
saveFailed = true;
// Update the values of the entity that failed to save from the store
ex.Entries.Single().Reload();
}
} while (saveFailed);
}
}
}