我有一个接收短信并显示它们的 C# 应用程序。
当我在没有此程序并使用 GSM 调制解调器的情况下发送 SMS 时，SMS 会保存在 GSM 调制解调器中。当我启动应用程序并单击“阅读短信”时，它只显示以前收到的短信，并且我已经在 GSM 调制解调器中看到过这些短信。我最近发送的一条新短信不可见。
该程序仅显示从调制解调器读取的 SMS。我应该怎么做才能在程序中立即显示收到的短信？
代码：
public Receive()
{
//
// Required for Windows Form Designer support
//
InitializeComponent();
//
// TODO: Add any constructor code after InitializeComponent call
//
}
/// <summary>
/// Clean up any resources being used.
/// </summary>
protected override void Dispose( bool disposing )
{
if( disposing )
{
if(components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
/// <summary>
/// Required method for Designer support - do not modify
/// the contents of this method with the code editor.
/// </summary>
private void InitializeComponent()
{
this.btnReadMessage = new System.Windows.Forms.Button();
this.rbMessagePhone = new System.Windows.Forms.RadioButton();
this.rbMessageSIM = new System.Windows.Forms.RadioButton();
this.txtOutput = new System.Windows.Forms.TextBox();
this.groupBox1 = new System.Windows.Forms.GroupBox();
this.dataGrid1 = new System.Windows.Forms.DataGrid();
this.groupBox1.SuspendLayout();
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).BeginInit();
this.SuspendLayout();
//
// btnReadMessage
//
this.btnReadMessage.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.btnReadMessage.Location = new System.Drawing.Point(192, 80);
this.btnReadMessage.Name = "btnReadMessage";
this.btnReadMessage.Size = new System.Drawing.Size(112, 24);
this.btnReadMessage.TabIndex = 17;
this.btnReadMessage.Text = "Read All Messages";
this.btnReadMessage.Click += new System.EventHandler(this.btnReadMessage_Click);
//
// rbMessagePhone
//
this.rbMessagePhone.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.rbMessagePhone.Location = new System.Drawing.Point(16, 56);
this.rbMessagePhone.Name = "rbMessagePhone";
this.rbMessagePhone.Size = new System.Drawing.Size(64, 24);
this.rbMessagePhone.TabIndex = 25;
this.rbMessagePhone.Text = "Phone";
//
// rbMessageSIM
//
this.rbMessageSIM.Checked = true;
this.rbMessageSIM.FlatStyle = System.Windows.Forms.FlatStyle.System;
this.rbMessageSIM.Location = new System.Drawing.Point(16, 24);
this.rbMessageSIM.Name = "rbMessageSIM";
this.rbMessageSIM.Size = new System.Drawing.Size(64, 24);
this.rbMessageSIM.TabIndex = 24;
this.rbMessageSIM.TabStop = true;
this.rbMessageSIM.Text = "SIM";
//
// txtOutput
//
this.txtOutput.Location = new System.Drawing.Point(8, 304);
this.txtOutput.Multiline = true;
this.txtOutput.Name = "txtOutput";
this.txtOutput.ScrollBars = System.Windows.Forms.ScrollBars.Vertical;
this.txtOutput.Size = new System.Drawing.Size(448, 144);
this.txtOutput.TabIndex = 57;
this.txtOutput.Text = "";
//
// groupBox1
//
this.groupBox1.Controls.Add(this.rbMessageSIM);
this.groupBox1.Controls.Add(this.rbMessagePhone);
this.groupBox1.Location = new System.Drawing.Point(8, 8);
this.groupBox1.Name = "groupBox1";
this.groupBox1.Size = new System.Drawing.Size(176, 96);
this.groupBox1.TabIndex = 58;
this.groupBox1.TabStop = false;
this.groupBox1.Text = "Message Storage";
//
// dataGrid1
//
this.dataGrid1.DataMember = "";
this.dataGrid1.HeaderForeColor = System.Drawing.SystemColors.ControlText;
this.dataGrid1.Location = new System.Drawing.Point(8, 120);
this.dataGrid1.Name = "dataGrid1";
this.dataGrid1.Size = new System.Drawing.Size(448, 176);
this.dataGrid1.TabIndex = 59;
//
// Receive
//
this.AutoScaleBaseSize = new System.Drawing.Size(5, 13);
this.ClientSize = new System.Drawing.Size(464, 454);
this.Controls.Add(this.dataGrid1);
this.Controls.Add(this.groupBox1);
this.Controls.Add(this.txtOutput);
this.Controls.Add(this.btnReadMessage);
this.Name = "Receive";
this.StartPosition = System.Windows.Forms.FormStartPosition.CenterScreen;
this.Text = "Read Messages";
this.Load += new System.EventHandler(this.Receive_Load);
this.groupBox1.ResumeLayout(false);
((System.ComponentModel.ISupportInitialize)(this.dataGrid1)).EndInit();
this.ResumeLayout(false);
}
#endregion
private void btnReadMessage_Click(object sender, System.EventArgs e)
{
Cursor.Current = Cursors.WaitCursor;
string storage = GetMessageStorage();
try
{
// Read all SMS messages from the storage
DecodedShortMessage[] messages = CommSetting.comm.ReadMessages(PhoneMessageStatus.All,storage );
foreach(DecodedShortMessage message in messages)
{
Output(string.Format("Message status = {0}, Location = {1}/{2}",
StatusToString(message.Status), message.Storage, message.Index));
ShowMessage(message.Data);
Output("");
}
Output(string.Format("{0,9} messages read.", messages.Length.ToString()));
Output("");
}
catch(Exception ex)
{
MessageBox.Show(ex.Message);
}
Cursor.Current = Cursors.Default;
}
private void BindGrid(SmsPdu pdu)
{
DataRow dr=dt.NewRow();
SmsDeliverPdu data = (SmsDeliverPdu)pdu;
dr[0]=data.OriginatingAddress.ToString();
dr[1]=data.SCTimestamp.ToString();
dr[2]=data.UserDataText;
dt.Rows.Add(dr);
dataGrid1.DataSource=dt;
}
private void ShowMessage(SmsPdu pdu)
{
if (pdu is SmsSubmitPdu)
{
// Stored (sent/unsent) message
SmsSubmitPdu data = (SmsSubmitPdu)pdu;
Output("SENT/UNSENT MESSAGE");
Output("Recipient: " + data.DestinationAddress);
Output("Message text: " + data.UserDataText);
Output("-------------------------------------------------------------------");
return;
}
if (pdu is SmsDeliverPdu)
{
// Received message
SmsDeliverPdu data = (SmsDeliverPdu)pdu;
Output("RECEIVED MESSAGE");
Output("Sender: " + data.OriginatingAddress);
Output("Sent: " + data.SCTimestamp.ToString());
Output("Message text: " + data.UserDataText);
Output("-------------------------------------------------------------------");
BindGrid(pdu);
return;
}
if (pdu is SmsStatusReportPdu)
{
// Status report
SmsStatusReportPdu data = (SmsStatusReportPdu)pdu;
Output("STATUS REPORT");
Output("Recipient: " + data.RecipientAddress);
Output("Status: " + data.Status.ToString());
Output("Timestamp: " + data.DischargeTime.ToString());
Output("Message ref: " + data.MessageReference.ToString());
Output("-------------------------------------------------------------------");
return;
}
Output("Unknown message type: " + pdu.GetType().ToString());
}
private string StatusToString(PhoneMessageStatus status)
{
// Map a message status to a string
string ret;
switch(status)
{
case PhoneMessageStatus.All:
ret = "All";
break;
case PhoneMessageStatus.ReceivedRead:
ret = "Read";
break;
case PhoneMessageStatus.ReceivedUnread:
ret = "Unread";
break;
case PhoneMessageStatus.StoredSent:
ret = "Sent";
break;
case PhoneMessageStatus.StoredUnsent:
ret = "Unsent";
break;
default:
ret = "Unknown (" + status.ToString() + ")";
break;
}
return ret;
}
private string GetMessageStorage()
{
string storage = string.Empty;
if (rbMessageSIM.Checked)
storage = PhoneStorageType.Sim;
if (rbMessagePhone.Checked)
storage = PhoneStorageType.Phone;
if (storage.Length == 0)
throw new ApplicationException("Unknown message storage.");
else
return storage;
}
private void Output(string text)
{
if (this.txtOutput.InvokeRequired)
{
SetTextCallback stc = new SetTextCallback(Output);
this.Invoke(stc, new object[] { text });
}
else
{
txtOutput.AppendText(text);
txtOutput.AppendText("\r\n");
}
}
private void Receive_Load(object sender, System.EventArgs e)
{
dt.Columns.Add("Sender",typeof(string));
dt.Columns.Add("Time",typeof(string));
dt.Columns.Add("Message",typeof(string));
}
private void Output(string text, params object[] args)
{
string msg = string.Format(text, args);
Output(msg);
}