Reference: Use the. net cf library to determine the connection status of the device.

Problem: msdn forums: ActiveSync connection status

The description is as follows:

How to capture the current status of connecting to ActiveSync. For example, if there is a connection, it is true, and if there is no connection, it is false.

I have tried activesyncstatus. Synchronizing and systemstate. activesyncstatus.

Neither of them can determine whether the PDA is connected to ActiveSync.

Solution:

Use the systemstate. cradlepresent attribute: gets a value indicating whether the device is connected to a cradle.

When using Microsoft. windowsmobile, Microsoft. windowsmobile. status must be referenced.

Code

The following code retrieves and displays the status of the systemstate. cradlepresent attribute when a button is clicked:

 

Button#click
Using System;
Using System. LINQ;
Using System. Collections. Generic;
Using System. componentmodel;
Using System. Data;
Using System. drawing;
Using System. text;
Using System. Windows. forms;

Using Microsoft. windowsmobile. status;
Namespace Smartdeviceproject7
{
Public   Partial   Class Form1: Form
{
Public Form1 ()
{
Initializecomponent ();
}

Private   Void Button#click ( Object Sender, eventargs E)
{
// Systemstate. cradlepresent: gets a value indicating whether the device is connected to a cradle.
Textbox1.text = Systemstate. cradlepresent. tostring ();
// False when no connection is established
// Show true when connecting lines
}
}
}

 

The following code gets and displays the status of the systemstate. cradlepresent attribute when the system status changes

 

Msystemstate_changed
Using System;
Using System. LINQ;
Using System. Collections. Generic;
Using System. componentmodel;
Using System. Data;
Using System. drawing;
Using System. text;
Using System. Windows. forms;

Using Microsoft. windowsmobile. status;
Namespace Smartdeviceproject7
{
Public   Partial   Class Form1: Form
{
Public Form1 ()
{
Initializecomponent ();
}

Systemstate msystemstate;

// Event triggered when the status changes
Void Msystemstate_changed ( Object Sender, changeeventargs ARGs)
{
// Systemstate. cradlepresent: gets a value indicating whether the device is connected to a cradle.
Textbox1.text = Systemstate. cradlepresent. tostring ();
// False when no connection is established
// Show true when connecting lines
}

Private   Void Form1_load ( Object Sender, eventargs E)
{
// Add event
Msystemstate =   New Systemstate (systemproperty. cradlepresent );
Msystemstate. Changed + =   New Changeeventhandler (msystemstate_changed );
Msystemstate_changed ( Null , Null );
}
}
}

 

ArticleReference:

Systemstate. cradlepresent adequacy

How to Get ActiveSync status in smart device