Working With ListBox In Windows Phone (Send SMS, Email and Make a Call) : Part 3

Mahak Gupta
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Windows Phone ListBox previous articles:

Introduction

Here we can make a call to the Student, send an SMS to that student and send an Email to that student. For that use this procedure.

Step 1

Here we continue the previous article in which we edit the data in the ListBox like this.

Step 2

First, we use three buttons (For Call, Send SMS, Send Email) and three TextBlocks like this.

<Button Height="65" HorizontalAlignment="Left" Margin="33,532,0,0" Name="btnCall" VerticalAlignment="Top" Width="85" FontSize="18" Click="btnCall_Click" IsEnabled="True"
Visibility="Collapsed" Grid.ColumnSpan="2">
<Button.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/Dialer.png" />
</Button.Background>
<Button.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="#FF905E35" Offset="1" />
<GradientStop Color="#FF3E352F" Offset="0.082" />
</LinearGradientBrush>
</Button.BorderBrush>
</Button>
<Button Height="65" HorizontalAlignment="Right" Margin="0,532,178,0" Name="btnSMS" VerticalAlignment="Top" Width="79" FontSize="18" IsEnabled="True"
Visibility="Collapsed" Click="btnSMS_Click" Grid.Column="1">
<Button.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="#FF7C674E" Offset="1" />
</LinearGradientBrush>
</Button.BorderBrush>
<Button.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/Message1.png" />
</Button.Background>
</Button>
<Button Height="65" HorizontalAlignment="Left" Margin="302,528,0,0" Name="btnEmail" VerticalAlignment="Top" Width="79" FontSize="18" IsEnabled="True"
Visibility="Collapsed" Click="btnEmail_Click" Grid.Column="1">
<Button.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/Send%20Email1.png" />
</Button.Background>
<Button.BorderBrush>
<LinearGradientBrush EndPoint="1,0.5" StartPoint="0,0.5">
<GradientStop Color="Black" Offset="0" />
<GradientStop Color="#FF80644A" Offset="1" />
</LinearGradientBrush>
</Button.BorderBrush>
</Button>
<TextBlock FontFamily="Calibri" FontSize="20" FontStyle="Normal" FontWeight="Bold" Height="32" HorizontalAlignment="Left" Margin="18,516,0,0" Name="txtBlkCall" Text="Call" TextAlignment="Center" VerticalAlignment="Top" Width="109" Visibility="Collapsed" Grid.ColumnSpan="2" />
<TextBlock FontFamily="Calibri" FontSize="20" FontStyle="Normal" FontWeight="Bold" Height="32" HorizontalAlignment="Left" Margin="112,515,0,0" Name="txtBlkSMS" Text="Send
SMS" TextAlignment="Center" VerticalAlignment="Top" Width="109" Grid.Column="1" Visibility="Collapsed" />
<TextBlock FontFamily="Calibri" FontSize="20" FontStyle="Normal" FontWeight="Bold" Height="32" HorizontalAlignment="Left" Margin="265,514,0,0" Name="txtBlkSendEmail"
Text="Send Email" TextAlignment="Center" VerticalAlignment="Top" Width="127" Grid.Column="1" Visibility="Collapsed" />

Note

Here we set the Visibility=Collapsed. In this example, the buttons will be visible when we tap a single item in the ListBox For this we create a Tap event of our ListBox and we write the following code in it.

private void lstStudentname_Tap(object sender, System.Windows.Input.GestureEventArgs e)
{
btnCall.Visibility = Visibility.Visible;
btnSMS.Visibility = Visibility.Visible;
btnEmail.Visibility = Visibility.Visible;
txtBlkCall.Visibility = Visibility.Visible;
txtBlkSendEmail.Visibility = Visibility.Visible;
txtBlkSMS.Visibility = Visibility.Visible;
}

Step 3

Now we will write the code for the Call Button:

private void btnCall_Click(object sender, RoutedEventArgs e)
{
var listBoxItem = lstStudentname.ItemContainerGenerator.ContainerFromIndex(lstStudentname.SelectedIndex) as ListBoxItem;
var txtBlk = FindVisualChildByType<TextBlock>(listBoxItem, "txtBlkExtra");
a = txtBlk.Text;
using (StudentdataContext StudentDB = new StudentdataContext(strConnectionString))
{
var c = from b in StudentDB.GetTable<StudentInfo>() where b.Extra == a.ToString() select b;
foreach (var x in c)
{
if (x.Mobile == "")
{
MessageBox.Show("Please Add the Mobile Number");
}
else
{
PhoneCallTask pct = new PhoneCallTask();
pct.PhoneNumber = x.Mobile;
pct.Show();
}
}
}
}

Output

If we cannot enter the Mobile Number then the following message will appear.

To enter a Mobile Number we should first edit the data. To do that we double-tap on the ListBox like this.

The following window will be shown, here we enter a Mobile Number and edit the Student Details.

Now we click on the Call Button.

Step 4

Now we will write the code to send the SMS.

First, we create a page (SendSMS.xaml) to add controls like this.

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/wooden-background.jpg" />
</Grid.Background>
<TextBlock Height="33" HorizontalAlignment="Left" Margin="32,20,0,0" Name="txtBlkTo" Text="To" VerticalAlignment="Top" FontWeight="Bold" Width="43" FontSize="22"
FontFamily="Portable User Interface" />
<TextBox Height="72" HorizontalAlignment="Left" Margin="107,0,0,0" Name="txtTo" Text="" VerticalAlignment="Top" Width="343" FontSize="18" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="32,81,0,0" Name="txtBlkCC" Text="CC" VerticalAlignment="Top" Width="43"
FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="72" HorizontalAlignment="Left" Margin="107,63,0,0" Name="txtCC" Text="" VerticalAlignment="Top" Width="343" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="14,163,0,0" Name="textBlkSubject" Text="Subject" VerticalAlignment="Top" Width="97" FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="72" HorizontalAlignment="Left" Margin="107,138,0,0" Name="txtSubject" Text="" VerticalAlignment="Top" Width="343" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="22,0,0,287" Name="textBlkBody" Text="Body" VerticalAlignment="Bottom" Width="97"
FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="206" HorizontalAlignment="Left" Margin="107,216,0,0" Name="txtBody" Text="" VerticalAlignment="Top" Width="343" />
<Button Content="Send" Height="72" HorizontalAlignment="Left" Margin="280,450,0,0" Name="btnSend" VerticalAlignment="Top" Width="160" Click="btnSend_Click"
FontWeight="Bold">
<Button.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/Dark%20Wooden%20Background.jpg" />
</Button.Background>
</Button>
</Grid>
</Grid>

Step 5

So when we click on the "Send SMS" button in MainPage we pass the following parameter (Mobile Number).

NavigationService.Navigate(new Uri(string.Format("/SendSMS.xaml?parameter={0}", x.Mobile), UriKind.Relative));

After that we write the following code to fetch the data in the SendSMS.xaml.cs page:

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
parameterValue = NavigationContext.QueryString["parameter"];
txtMobileNumber.Text = parameterValue.ToString();
object sample;
if (PS.State.TryGetValue("numbertext", out sample))
txtMobileNumber.Text = sample as string;
if (PS.State.TryGetValue("messagetext", out sample))
txtMessage.Text = sample as string;
base.OnNavigatedTo(e);
}

Output

Now we will write the code for the "Send SMS" button.

private void button1_Click(object sender, RoutedEventArgs e)
{
if (txtMobileNumber.Text == "" || txtMessage.Text == "")
{
MessageBox.Show("Please Enter the Correct Data");
}
else
{
CT.To = txtMobileNumber.Text;
CT.Body = txtMessage.Text;
CT.Show();
this.NavigationService.Navigate(new Uri("/MainPage.xaml", UriKind.Relative));
}
}

Here we send the message to the following number.

Step 6

Now we will write the code for sending an email.

First, we create a page (SendMail.xaml) and add controls like this.

<Grid x:Name="ContentPanel" Grid.Row="1" Margin="12,0,12,0">
<Grid.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/wooden-background.jpg" />
</Grid.Background>
<TextBlock Height="33" HorizontalAlignment="Left" Margin="32,20,0,0" Name="txtBlkTo" Text="To" VerticalAlignment="Top" FontWeight="Bold" Width="43" FontSize="22"
FontFamily="Portable User Interface" />
<TextBox Height="72" HorizontalAlignment="Left" Margin="107,0,0,0" Name="txtTo" Text="" VerticalAlignment="Top" Width="343" FontSize="18" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="32,81,0,0" Name="txtBlkCC" Text="CC" VerticalAlignment="Top" Width="43"
FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="72" HorizontalAlignment="Left" Margin="107,63,0,0" Name="txtCC" Text="" VerticalAlignment="Top" Width="343" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="14,163,0,0" Name="textBlkSubject" Text="Subject" VerticalAlignment="Top" Width="97"
FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="72" HorizontalAlignment="Left" Margin="107,138,0,0" Name="txtSubject" Text="" VerticalAlignment="Top" Width="343" />
<TextBlock FontSize="22" FontWeight="Bold" Height="33" HorizontalAlignment="Left" Margin="22,0,0,287" Name="textBlkBody" Text="Body" VerticalAlignment="Bottom" Width="97"
FontFamily="Portable User Interface" />
<TextBox FontSize="18" Height="206" HorizontalAlignment="Left" Margin="107,216,0,0" Name="txtBody" Text="" VerticalAlignment="Top" Width="343" />
<Button Content="Send" Height="72" HorizontalAlignment="Left" Margin="280,450,0,0" Name="btnSend" VerticalAlignment="Top" Width="160" Click="btnSend_Click"
FontWeight="Bold">
<Button.Background>
<ImageBrush ImageSource="/WorkingWithListBoxInWP7;component/Image/Dark%20Wooden%20Background.jpg" />
</Button.Background>
</Button>
</Grid>
</Grid>

So when we click on the "Send Email" button in the MainPage we pass the following parameter (Email Id).

using (StudentdataContext StudentDB = new StudentdataContext(strConnectionString))
{
var email = from b in StudentDB.GetTable<StudentInfo>() where b.Extra == a.ToString() select b;
foreach (var x in email)
{
if (x.Email == "")
{
MessageBox.Show("Please Add the Email Address");
}
else
{
NavigationService.Navigate(new Uri(string.Format("/SendMail.xaml?parameter={0}", x.Email), UriKind.Relative));
}
}
}

After that we write the following code to fetch the data in the SendMail.xaml.cs page.

protected override void OnNavigatedTo(System.Windows.Navigation.NavigationEventArgs e)
{
base.OnNavigatedTo(e);
parameterValue = NavigationContext.QueryString["parameter"];
txtTo.Text = parameterValue.ToString();
}

Now we will write the code to send an email.

private void btnSend_Click(object sender, RoutedEventArgs e)
{
EmailComposeTask MYEmailTask = new EmailComposeTask();
MYEmailTask.To = txtTo.Text;
MYEmailTask.Cc = txtCC.Text;
MYEmailTask.Subject = txtSubject.Text;
MYEmailTask.Body = txtBody.Text;
MYEmailTask.Show();
}

Using this example we can make a call, send SMS and send an email to that Student.

Summary

In this article, we learned about Working With ListBox In Windows Phone (Send SMS, Email and Make a Call) : Part 3.