Silverlight learning notes-Practical Application (1) (2): Create a Silverlight application with your hands to add records

Based on the previous article, we need to further add new records to the DataGrid Control.
Function Description: Add a button above the DataGrid Control. When you click it, a new row is added to the last row of the DataGrid data row. You can edit the new row. In addition, we can add a new row through the insert button on the keyboard.
The specific implementation is as follows:
1. Modify the interface.
Page. XAML Code As follows:

< Usercontrol xmlns: Data = " CLR-namespace: system. Windows. controls; Assembly = system. Windows. Controls. Data " X: Class = " Slapplicationexample. Page "
Xmlns = " Http://schemas.microsoft.com/winfx/2006/xaml/presentation "  
Xmlns: x = " Http://schemas.microsoft.com/winfx/2006/xaml "  
Width = " 400 " Height = " 300 " >
< Grid X: Name = " Layoutroot " Background = " White " Margin = " 5 " >
< Grid. rowdefinitions >
< Rowdefinition height = " Auto " />
< Rowdefinition height = " * " />
</ Grid. rowdefinitions >
< Stackpanel Orientation = " Horizontal " >
< Button X: Name = " Addbutton " Content = " Add " Margin = " 5 " />
</ Stackpanel >
< Data: DataGrid X: Name = " Dgpeople " Grid. Row = " 1 "   />
</ Grid >

</Usercontrol>

The interface is as follows:

2. Add button click event and keyboard Insert key event

Bind events to the DataGrid Control beforehand.

This . Addbutton. Click + =   New Routedeventhandler (addbutton_click );
This . Dgpeople. keydown + =   New Keyeventhandler (leledatagrid_keydown );

1. Button clicking event # Region Click the button to add a new record row
Void Addbutton_click ( Object Sender, routedeventargs E)
{
Mypeople. Add ( New Person ());
}
# Endregion

2. Insert key event # Region Use the Insert key to add a new record row
Void Leledatagrid_keydown ( Object Sender, keyeventargs E)
{
If (Key. insert = E. Key)
{
Mypeople. Add ( New Person ());
}
}
# Endregion

The code for page. XAML. CS is as follows: Using System;
Using System. Collections. Generic;
Using System. LINQ;
Using System. net;
Using System. windows;
Using System. Windows. controls;
Using System. Windows. documents;
Using System. Windows. input;
Using System. Windows. Media;
Using System. Windows. Media. animation;
Using System. Windows. shapes;

Namespace Slapplicationexample
{
Public   Partial   Class Page: usercontrol
{
People mypeople;

Public Page ()
{
Initializecomponent ();
This . Addbutton. Click + =   New Routedeventhandler (addbutton_click );
This . Dgpeople. keydown + =   New Keyeventhandler (leledatagrid_keydown );
Loaded + = New Routedeventhandler (page_loaded );


}

Private   Void Page_loaded ( Object Sender, routedeventargs E)
{
obtain data from the data source and bind it to the DataGrid Control # RegionObtain data from the data source and bind it to the DataGrid Control.
Mypeople=People. gettestdata ();
This. Dgpeople. itemssource=Mypeople;
# Endregion

}


Click the button to add a new record row # Region Click the button to add a new record row
Void Addbutton_click ( Object Sender, routedeventargs E)
{
Mypeople. Add (NewPerson ());
}
# Endregion

Use the Insert key to add a new record row # Region Use the Insert key to add a new record row
Void Leledatagrid_keydown ( Object Sender, keyeventargs E)
{
If (Key. insert = E. Key)
{
Mypeople. Add (NewPerson ());
}
}
# Endregion

}
}

The effect after running is as follows:

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This articleProgramIt passes debugging in the silverlight2.0 and vs2008 environments. This article draws on some network materials and hopes to learn from them.
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