如何动态获取命令并获取结果 [英] How to dynamically get the command and get the result

问题描述

在我的项目中，有一个功能区控件，并且在该控件中，有一个保存"按钮，就像QuickAcessButton一样，例如保存，撤消，重做等....

我在这些使用控件中拥有如此多的用户控件，因此它具有网格控制或某些文本框，我必须将所有数据保存在特定用户控件的特定实体中.，


像一个用户控件具有雇员的基本信息，而一个用户控件具有与银行相关的信息等.因此，当我单击功能区控件的保存"按钮时，我想将垂直用户控件的值保存到垂直实体表中...

请给我一些建议...

in my project there is a Ribbon Control and in this control there is Save button for all just like QuickAcessButton like save, undo, redo etc. etc....

i hv so many user control in these use control it has grid contrl or some textbox throught this i have to save all the data in perticular entity of a perticular usercontrol.,,


like one user control has Basic info of employee, and one user control has Bank related info etc.. so when i click the Save button of ribbon control i want to save the perticular user control value to a perticular entity table ...

plz give me some suggestion...

推荐答案

首先，您可以看一下以下内容:创建通用实体框架4.0存储库 [ ^ ]-这将允许您创建一个通用存储库，以容纳任何实体表类.

其次，如前所述，您可以执行以下操作:

我不知道您是使用MVVM还是任何其他设计模式，因此这将是一个非常基本的示例:

我们的界面:

Hi,

Well first of all, you could have a look at the following: Creating a Generic Entity Framework 4.0 Repository[^] - this will allow you to create a generic repository which will accommodate any entity table class.

Secondly, as mentioned earlier you could do something like this:

I don''t know if you are using MVVM or any other design pattern, so this is going to be a very basic example:

Our Interface:

public interface ISavable
{
    int SaveData();
}

我们的第一个UserControl-实现了 ISavable :

Our first UserControl - which implement ISavable:

public partial class UserControl1 : UserControl, ISavable
{
    public UserControl1()
    {
        InitializeComponent();
    }

    #region ISavable Members

    public int SaveData()
    {
        using (DevelopmentEntities context = new DevelopmentEntities())
        {
            context.Events.AddObject(new Event());
            return context.SaveChanges();
        }
    }

    #endregion
}

我们的第二个UserControl-实现了 ISavable :

Our second UserControl - which implements ISavable:

public partial class UserControl2 : UserControl, ISavable
{
    public UserControl2()
    {
        InitializeComponent();
    }

    #region ISavable Members

    public int SaveData()
    {
        using (DevelopmentEntities context = new DevelopmentEntities())
        {
            context.EventTypes.AddObject(new EventType());
            return context.SaveChanges();
        }
    }

    #endregion
}

现在，在我们的主类中(功能区控件被实例化的任何地方)，我们需要将 active用户控件强制转换为该接口并调用适当的方法-如前所述，这是一个非常基本的示例，但演示了原理:

Now, within our main class (where ever the ribbon control is instantiated), we need to cast the active user control to the interface and call the appropriate method - as mentioned earlier, this is a very basic example, but demonstrates the principle:

public partial class MainWindow : Window
{
    public MainWindow()
    {
        InitializeComponent();

        ISavable saveUserControl = this.DataContext as UserControl1;
        saveUserControl.SaveData();

        ISavable saveUserControl2 = this.DataContext as UserControl2;
        saveUserControl.SaveData();
    }
}

不用说，您可以通过使其更通用以及实现MVVM模式来扩展它.

希望对您有帮助！
亲切的问候，

Needless to say you could extend this by making it more generic as well as implementing a MVVM pattern.

Hope it helps!
Kind regards,

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