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Naming your controls
Blend gives default names to your controls and objects whenever you use them in connection with event triggers or whenever your controls or objects are the target of data binding element properties. Blend needs to do this to be able to reference the controls and other objects. The default name is the name of the object, such as checkBox, if you use a checkbox in an event trigger. Or CheckBox, if the checkbox is the target of data binding element properties. Each name is unique, so if the name CheckBox is already taken, then Blend appends the next available number to the end of the name, such as CheckBox1.
You can name any controls that do not already have default names given by Blend, using the Name input box at the top of the Properties panel, as shown in Figure 16.4. Microsoft uses two conventions for naming objects: camel notation and Pascal notation. In both, all the words are strung together with no spaces. In camel notation, the first letter of the name is lowercase, and the first letters of all the other words in the name are uppercase, such as checkBox. In Pascal notation, all the first letters of words are capitalized, such as CheckBox. It’s probably a good idea to use either of these conventions when naming your objects -- especially since spaces are not allowed in names, and capitalizing first letters of words makes the names more readable.
You can name your controls anytime after you create them and before Blend names them for you, if Blend names them at all. Any control that is referenced in the code-behind file must be named, and Blend does not do this automatically. So, it’s good to get into the habit of naming your controls. In fact, you may want to get into the habit of giving your controls descriptive names when you first add them to the artboard.

Naming your control using camel notation and no spaces in the Properties panel.

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