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@@ -1084,6 +1084,7 @@ type
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FBeforeScroll: TDataSetNotifyEvent;
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FBlobFieldCount: Longint;
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FBuffers : TBuffers;
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+ // The actual length of FBuffers is FBufferCount+1
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FBufferCount: Longint;
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FConstraints: TCheckConstraints;
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FDisableControlsCount : Integer;
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@@ -1119,7 +1120,6 @@ type
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Procedure DoInsertAppend(DoAppend : Boolean);
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Procedure DoInternalOpen;
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Function GetBuffer (Index : longint) : TDataRecord;
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- function GetBufferCount: Longint;
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function GetDataProxy: TDataProxy;
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Procedure RegisterDataSource(ADataSource : TDataSource);
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procedure SetConstraints(Value: TCheckConstraints);
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@@ -1247,7 +1247,7 @@ type
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property CurrentRecord: Longint read FCurrentRecord;
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property BlobFieldCount: Longint read FBlobFieldCount;
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property Buffers[Index: Longint]: TDataRecord read GetBuffer;
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- property BufferCount: Longint read GetBufferCount;
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+ property BufferCount: Longint read FBufferCount;
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property CalcBuffer: TDataRecord read FCalcBuffer;
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property CalcFieldsCount: Longint read FCalcFieldsCount;
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property InternalCalcFields: Boolean read FInternalCalcFields;
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@@ -2776,11 +2776,6 @@ begin
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Result:=FBuffers[Index];
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end;
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-function TDataSet.GetBufferCount: Longint;
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-begin
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- Result:=Length(FBuffers);
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-end;
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-
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function TDataSet.DoGetDataProxy: TDataProxy;
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begin
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@@ -3636,12 +3631,13 @@ begin
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If Value=FBufferCount Then
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exit;
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// Less buffers, shift buffers.
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- if value>BufferCount then
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+ if value>FBufferCount then
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begin
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+ SetLength(FBuffers,Value+1); // FBuffers[FBufferCount] is used as a temp buffer
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For I:=FBufferCount to Value do
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FBuffers[i]:=AllocRecordBuffer;
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end
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- else if value<BufferCount then
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+ else if value<FBufferCount then
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if (value>=0) and (FActiveRecord>Value-1) then
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begin
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for i := 0 to (FActiveRecord-Value) do
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@@ -4850,7 +4846,7 @@ begin
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TempBuf := FBuffers[0];
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For I:=1 to FBufferCount do
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FBuffers[I-1]:=FBuffers[i];
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- FBuffers[BufferCount]:=TempBuf;
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+ FBuffers[FBufferCount]:=TempBuf;
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end;
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procedure TDataSet.ShiftBuffersForward;
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michael