What is the difference between dim and set in vba

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Pardon me as am a newbie in VBA.

Sometimes I use

Dim r as Range
r = Range("A1")

Other times I use

Set r = Range("A1")

What is the difference? And when should I use what?

7 Answers

Dim is short for Dimension and is used in VBA and VB6 to declare local variables.

Set on the other hand, has nothing to do with variable declarations. The Set keyword is used to assign an object variable to a new object.

Hope that clarifies the difference for you.

According to VBA help on SET statement it sets a reference to an object.so if you change a property the actual object will also changes.

Dim newObj as Object
Set var1=Object1(same type as Object)
Set var2=Object1(same type as Object)
Set var3=Object1(same type as Object)
Set var4=Object1(same type as Object)
Var1.property1=NewPropertyValue

the other Vars properties also changes,so:

Var1.property1=Var2.property1=Var3.property1=Var4.property1=Object1.Property1=NewpropertyValue`

actualy all vars are the same!

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