You can get/set the value of the thermometer by using the Value property. For example
[C#]
thermometer.Value = currentTemp; //this sets the value of the thermometer.
For examples, check out the C:\Program Files\National Instruments\MeasurementStudio2003\DotNET\Examples\UI\NumericPointer folder.
There are also several help topics that describe the best way to use the numeric pointer controls (the thermometer is a numeric pointer control). If you go to the table of contents in the Visual Studio Help, go to Measurement Studio Help >> NI Measurement Studio .NET class library >> Using the NI Measurement Studio .NET class library >> Using the Measurement Studio Numeric Pointer .NET controls
Hope this helps
Bilal Durrani
NI