Mobile SMS Contact - This application is part of the author's "30 Days of .NET" initiative to develop 30 mobile applications in 30 days. The source code of the application is included in order to help programmers new to Windows Mobile development write applications in .NET.
Today one of my readers, Paul Diston, made the following request.
Hi, I have another idea you might be interested in. I would like to be able to type in a single SMS message and then hit the send button which would then send the same message to all my contacts that have a mobile number specified.
Thanks
Paul Diston
The thing that I really liked about Paul's suggestion is that is cover two very important mobile development topics: one is working with contacts stored in Outlook Mobile, and the other is working with SMS messaging.
I changed it a little bit from Paul's original request. I decided to incorporate a filter into the application. This way you can send SMS messages to your personal contacts, or your business contacts. You could even create a custom category. I didn't include an option to select contacts that do not have a category assigned to them. This would be a great modification for a reader to implement. Simply add a '' item to the list, and if that item is selected add any contact that doesn't have a category.
I added a ListView so that users could see the contacts they were about to text message. Another great enhancement, would be the ability to modify this listing. Just a remove option would be a great addition in functionality.
One feature I added as a polishing touch, was the live character count feature. This feature lets users know how much more text they can send. And we have found another opportunity for improvement here. I limit the text to 160 characters, but if someone entered in more text we could send X number of text messages until the complete message was delivered.
Next with have our SMS Message TextBox where we can type the message we will send. Nothing special here, but I didn't set a MaxLength of 160 characters.
At the bottom I exposed the RequestDeliveryReport property of the SmsMessage class. What ever the user picks here will be assigned to that property.
One feature that I really love about Windows Mobile programming, that especially came in useful for this application was the Cellular Emulator.
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Supported operating systems:
Windows Mobile 2003, Windows Mobile 5.0, Windows Mobile 6 Classic, Windows Mobile 6 Professional, Windows Mobile 6.1 Classic, Windows Mobile 6.1 Professional
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