QueryRun.changed Method
Definition
Important
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Overloads
| changed(Int32) |
Determines whether the specified data source has fetched a new value since the last call to the QueryRun.next method. |
| changed(Int32, Int32) |
changed(Int32)
Determines whether the specified data source has fetched a new value since the last call to the QueryRun.next method.
public:
virtual bool changed(int num1);public virtual bool changed (int num1);abstract member changed : int -> bool
override this.changed : int -> boolPublic Overridable Function changed (num1 As Integer) As BooleanParameters
- num1
- Int32
Returns
true if the specified data source has changed since the last call to QueryRun.next; otherwise, false.
Remarks
This method is useful when data sources are hierarchically structured. A more embedded data source may change many times (such as the customer transactions). This occurs every time that a less embedded data source (such as the customer table) fetches a new record (another customer). The changedNo method can be used instead of this function.
Applies to
changed(Int32, Int32)
public:
virtual bool changed(int _table, int _occurrence);public virtual bool changed (int _table, int _occurrence);abstract member changed : int * int -> bool
override this.changed : int * int -> boolPublic Overridable Function changed (_table As Integer, _occurrence As Integer) As BooleanParameters
- _table
- Int32
The data source to check; optional. If more than one data source is assigned to a given table, this argument can be used to determine which data source to check.
- _occurrence
- Int32
The data source to check; optional. If more than one data source is assigned to a given table, this argument can be used to determine which data source to check.