10. December 2004 04:33
I have run into the "Failed To Enable Constraint" exception many times while using datasets. I always find it to be a very tedious job to determine what the actual error is. Here is a good post
that shows how to trouble shoot this problem.
10. December 2004 04:25
I like to have one solution with multiple projects that compile DLL's to a common folder that all other progects reference. The problem is that VS.Net locks the DLLs. Well this article
tells how to get around this.
10. December 2004 03:47
I got a chance to try out SendMSN just a few minutes ago and I wanted to pass along my input.
The binaries are built on .Net 1.1 so I was unable to use it on my work machine since we are stuck on 1.0 Framework for now. I suppose I could have recompiled it on 1.0 but I wanted to give it a spin right from the download.
The configuration is very simple. All you need is your screen name and MSN Messenger login information.
The command line options are easy to use also. /m:"my message" /r:email@example.com
You can even use the Emoticons in the message. The recipient must have you on his/her buddy list or else the message will not get to them.
- Caller ID notification for Home Automation
- Stock Allerts
- IP Address change notification
- Home Automation Alerts
- The door bell rang. A URL could be sent along in the message that can take me directly to my video camera pointing at the front door.
- The Home Security detected a break in My home
- Video cameras detected motion
- The snail mail arrived
- Build notifications
- Message was left on my answering machine
Since SendMSN needs to log into the Messenger, send the message and log out of Messenger there can be a delay before the message actauly reaches the destination. I might want to create a Windows Service that stays logged into Messenger to speed up the notifications for things like Security alerts.
I noticed that SendMSN can detect if the recipient is online or not. I may want to change the code so that a message can be guaranteed delivery. If the recipient is offline wait for him/her to come online and then send the message. I may also want to email the message if the recipient is offline.
9. December 2004 20:40
Just found a small article that details how to unit test web pages
using Cassini. This is an alternative to using NUnitAsp. I have not tried this out yet but I thought it was interesting.
7. December 2004 13:50
I have to check this out to see how it works. I would like to send messages from my home automation system. The SendMSN command line tool allows you to do just this. It is built on top of the managed MSN messenger library called dotMSN.
2. December 2004 20:37
I was looking at the Engadget site and I noticed this little Wifi Enabled Remote
device. My first thought was that it would us your Wifi to control your media device anywhere in the house
which is exactly what I wanted to develop. But it turns out the device uses Wifi for programing and updates.
28. November 2004 18:26
Engadget just posted a Review on the 2005 Microsoft Multimedia Center
. I am waiting for the hardware to come down in price before I give this a try. I bet after christmas sales will win me over :)
28. November 2004 18:22
I was checking out the PVRBlog and I saw a DirectTV Tivo Series 2 Hack. This looks like something I want to give a try. However I have to get my Wife and kids to give up the Tivo for a while to do it :)
28. November 2004 18:14
Just noticed How-To on BroadCatching. This technic uses Bittorrent and RSS to capture and download new TV shows. Neat alternative to TIVO.
21. November 2004 18:33
I was looking for a camera that was waterproof (although I am installing it under the front porch), has motion detection, IR Leds for night vision and works well during the day. I found something that seemed to fit the requirements at the local Radio Shack. The Radio Shack Indoor/Outdoor B&W Camera was only $60 and also had two way audio.
The first time I gave the camera a test run was at night on the front porch and I was amazed at the clarity that the camera produced. With the front porch light on I could easily see 20 ft into the front yard. I never relized that incandescent lights give off infrared light. Well I was very pleased with the results so I planned to install the camera into my whole house video system on the next weekend.
The integration took a little hacking because I had RG6, CAT-5, and power going out to the front porch and the camera came with a PS2 connector. So I purchase a 6ft PS2 keyboard/mouse extension cable to canabalize for the camera to whole house video integration. The camera had signals as follows: GND, 15 vdc, Video, Mic Audio, Speaker Audio, and Motion Sense. After all was hooked up and I added an RF Modulator to brodcast the video into my whole house. This was about 1pm and the sun had gone down in my front yard. Well the picture that came from the camera was very washed out. I pointed the camera indoors and the image came quickly into view. Obviously the sun's IR was causing the camera to be blinded. Even though the sun was not directly in view with the camera. So the end result is this camera did not fit by "Works well in Daylight" requirement.
Back to Radio Shack to return the camera. I hope I can find a new one to take it's place. Even if I have to purchase a seperate motion detector and infrared flood lamp I would be statisfied. As long as the camera video quality is good during the day and night.