computation on controls or variables (VB.NET)

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I would like to know besides it is more efficient, is there any other reason to perform computations on variable instead of on controls directly?

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Depending on what you are doing of course? But if you are doing complicated computations, you would probably create a seperate function or subroutine for the calculation, in this case, you may pass a variable representing the value to be manipulated, rather than a control that contains the value. By doing this, you make your function more re-usable, as it relies only on the data type to be the same (ie. string), and not a particular control type (such as a value from a combo box, or text box, or list box).

Also, it can make the code more obvious as to what you are doing if you are doing calculations on a variable. It may make the code more readable?

Just some thoughts.

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Depending on what you are doing of course? But if you are doing complicated computations, you would probably create a seperate function or subroutine for the calculation, in this case, you may pass a variable representing the value to be manipulated, rather than a control that contains the value. By doing this, you make your function more re-usable, as it relies only on the data type to be the same (ie. string), and not a particular control type (such as a value from a combo box, or text box, or list box).

Also, it can make the code more obvious as to what you are doing if you are doing calculations on a variable. It may make the code more readable?

Just some thoughts.

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Your question is a bit vague. Are you talking about repeatedly referencing a control in a code routine, or what? There is also a board in the Lounge specifically for VB.Net, and you might be better off posting your VB.Net questions there rather than here.

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Your question is a bit vague. Are you talking about repeatedly referencing a control in a code routine, or what? There is also a board in the Lounge specifically for VB.Net, and you might be better off posting your VB.Net questions there rather than here.

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> I would like to know besides it is more efficient, is there any other reason to perform computations on variable
> instead of on controls directly?

Fewer changes when you want to re-use your code in another project with differently named controls?

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