Dim VarName[ [subscripts] ]. You can also use the Dim statement with empty parentheses to declare a dynamic array. After declaring a dynamic array, use the ReDim statement within a procedure to define the number of dimensions and elements in the array. If you try to redeclare a dimension for an array variable whose size was explicitly specified in a Dim statement, an error occurs.
Dim x as Integer. Dim y 10 as String. ReDim Statement :. Used to declare the dynamic-array variables, allocates or reallocates storage space at procedure level.
ReDim [Preserve] VarName subscripts. The ReDim statement is used to size or resize a dynamic array that has already been formally declared using a Private, Public, or Dim statement with empty parentheses without dimension subscripts.
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Replies 10 Views It is invalid on a scalar variable containing only a single value , set, or structure. ReDim can only be used at the process level. This means that the "declaration context" of a variable must be a process, not a source file, namespace, interface, class, structure, module, or block.
For example: there is a Byte array A, if we know that the upper limit of this array can only be 4, we use Dim Dim A As Byte 4 but if we cannot determine its size in advance, or need to change its size at runtime To use the dynamic array Dim A As Byte ReDim A 4 'This will clear the original data when changing the size ReDim Preserve A 4 'This will keep the original data when changing the size.
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