{"rsdb":{"rid":"179337","subhead":"","postdate":"0","aid":"130193","fid":"86","uid":"1","topic":"1","content":"
\n

\u7b2c\u4e00\uff1a<\/p> \n

\u5728\u4f60\u5237\u65b0\u524d\u4fdd\u5b58\u6240\u5728\u4f4d\u7f6e\u7684\u884c\u53f7<\/p> \n

procedure XXXClass.LockPositionEx;
begin
DisableControls;<\/p> \n

FHistoryRecNo := 0;
FHistoryIndexName := EmptyStr;
if Active then
begin
if IndexName <> EmptyStr then
FHistoryIndexName := IndexName;
IndexName := EmptyStr;<\/p> \n

if not IsEmpty then
if (State in [dsEdit,dsInsert]) then
FHistoryRecNo := -1
else
FHistoryRecNo := RecNo;
end;
end;<\/p> \n

\u7b2c\u4e8c\u5237\u65b0\u540e\u5b9a\u4f4d\u5230\u65b0\u884c\u53f7<\/p> \n


procedure XXXClass.UnlockPositionEx;
begin
if Active then
begin
if not IsEmpty then
if FHistoryRecNo < 0 then\/\/\u5904\u7406\u7f16\u8f91\u72b6\u6001\uff0c\u76f4\u63a5\u8df3\u81f3\u6700\u540e\u4e00\u6761\u8bb0\u5f55
Last
else if FHistoryRecNo = 0 then
First
else if FHistoryRecNo > 0 then\/\/
begin
if RecordCount >= FHistoryRecNo then
RecNo := FHistoryRecNo
else if RecordCount > 0 then
Last;
end;

if FHistoryIndexName <> EmptyStr then
begin
IndexName := FHistoryIndexName;
FHistoryIndexName := EmptyStr;
end;
end;<\/p> \n

EnableControls;
end;<\/p> \n

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