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TADDataSet.EditRangeStart Method
TADDataSet Class  TADDataSet Members  uADCompDataSet Namespace  Example  public  See Also  Send Feedback

Enables changing the starting value for an existing range.

Group

public

Links
TADDataSet Class, TADDataSet Members, uADCompDataSet Namespace, Example, public, See Also
Description

Call EditRangeStart to bring dataset to the dsSetKey state and change the starting value for an existing range. 

After call the application can modify indexed fields. To iterate through them use IndexFieldCount and IndexFields properties. Optionally may be edited value of KeyFieldCount and/or KeyExclusive properties. 

After assigning a new ending value, call ApplyRange to activate the modified range.

Syntax
procedure EditRangeStart;
See Also
Example
ADQuery1.IndexFieldNames := 'CUST_NO';
ADQuery1.SetRangeStart;
ADQuery1['CUST_NO'] := 100;
ADQuery1.SetRangeEnd;
ADQuery1['CUST_NO'] := 200;
ADQuery1.ApplyRange;
......
ADQuery1.EditRangeStart;
ADQuery1['CUST_NO'] := ADQuery1['CUST_NO'] + 1;
ADQuery1.ApplyRange;
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