procedure TFHkdata.SortQuery(Column:TColumn);
var
SqlStr,myFieldName,TempStr: string;
OrderPos: integer;
SavedParams: TParams;
begin
if not (Column.Field.FieldKind in [fkData,fkLookup]) then exit;
if Column.Field.FieldKind =fkData then
myFieldName := UpperCase(Column.Field.FieldName)
else
myFieldName := UpperCase(Column.Field.KeyFields);
while Pos(myFieldName,';')<>0 do
myFieldName := copy(myFieldName,1,Pos(myFieldName,';')-1)
+ ',' + copy(myFieldName,Pos(myFieldName,';')+1,100);
with TQuery(TDBGrid(Column.Grid).DataSource.DataSet) do
begin
SqlStr := UpperCase(Sql.Text);
// if pos(myFieldName,SqlStr)=0 then exit;
if ParamCount>0 then
begin
SavedParams := TParams.Create;
SavedParams.Assign(Params);
end;
OrderPos := pos('ORDER',SqlStr);
if (OrderPos=0) or
(pos(myFieldName,copy(SqlStr,OrderPos,100))=0) then
TempStr := ' Order By ' + myFieldName + ' Asc'
else if pos('ASC',SqlStr)=0 then
TempStr := ' Order By ' + myFieldName + ' Asc'
else
TempStr := ' Order By ' + myFieldName + ' Desc';
if OrderPos<>0 then SqlStr := Copy(SqlStr,1,OrderPos-1);
SqlStr := SqlStr + TempStr;
Active := False;
Sql.Clear;
Sql.Text := SqlStr;
if ParamCount>0 then
begin
Params.AssignValues(SavedParams);
SavedParams.Free;
end;
Prepare;
Open;
end;
end;
var
SqlStr,myFieldName,TempStr: string;
OrderPos: integer;
SavedParams: TParams;
begin
if not (Column.Field.FieldKind in [fkData,fkLookup]) then exit;
if Column.Field.FieldKind =fkData then
myFieldName := UpperCase(Column.Field.FieldName)
else
myFieldName := UpperCase(Column.Field.KeyFields);
while Pos(myFieldName,';')<>0 do
myFieldName := copy(myFieldName,1,Pos(myFieldName,';')-1)
+ ',' + copy(myFieldName,Pos(myFieldName,';')+1,100);
with TQuery(TDBGrid(Column.Grid).DataSource.DataSet) do
begin
SqlStr := UpperCase(Sql.Text);
// if pos(myFieldName,SqlStr)=0 then exit;
if ParamCount>0 then
begin
SavedParams := TParams.Create;
SavedParams.Assign(Params);
end;
OrderPos := pos('ORDER',SqlStr);
if (OrderPos=0) or
(pos(myFieldName,copy(SqlStr,OrderPos,100))=0) then
TempStr := ' Order By ' + myFieldName + ' Asc'
else if pos('ASC',SqlStr)=0 then
TempStr := ' Order By ' + myFieldName + ' Asc'
else
TempStr := ' Order By ' + myFieldName + ' Desc';
if OrderPos<>0 then SqlStr := Copy(SqlStr,1,OrderPos-1);
SqlStr := SqlStr + TempStr;
Active := False;
Sql.Clear;
Sql.Text := SqlStr;
if ParamCount>0 then
begin
Params.AssignValues(SavedParams);
SavedParams.Free;
end;
Prepare;
Open;
end;
end;
Column.Field.FieldName + ' ASC'
Column.Field.FieldName + ' DESC'
begin
inc(clicktimtes);
if clicktimes mod 2 =0 then
adotable1.Sort( Column.FieldName+' ASC')
else
adotable1.Sort( Column.FieldName+' DESC')
end;bde 中我没用过,用ehlib直接支持,不用编代码