实现在virtualStringtree中编辑的标准步骤

1.设置TVirtualStringTree属性

toFullRowSelect : false;

toMultiSelect:false;

toExtendedFocous:true;

toEditable:true;

editDelay:0 //假如不调用editnode，则不会CREATE EDITOR

2.实现virtualStringtree的ONClick事件
功能根据当前获取焦点的node，判定是否edit该node

TMMSLibraryForm版本

procedure TMMSLibraryForm.DataTreeClick(Sender: TObject);
var
Column:TColumnIndex;
node:PVirtualNode;
begin
if DataTree.FocusedNode=nil then Exit;

node:=DataTree.FocusedNode;
Column:=DataTree.FocusedColumn;

if Column%26lt;%26gt;3 then
DataTree.EditNode(node,Column);

end;

TSPNumbersForm版本

procedure TSPNumbersForm.VSTreeSPnumberClick(Sender: TObject);
var
Column:TColumnIndex;
node:PVirtualNode;
begin
if VSTreeSPnumber.FocusedNode=nil then Exit;

node:=VSTreeSPnumber.FocusedNode;
Column:=VSTreeSPnumber.FocusedColumn;

VSTreeSPnumber.EditNode(node,Column);
end;

TTestNumberForm版本

procedure TTestNumberForm.VSTreeTestNumberClick(Sender: TObject);
var
Column:TColumnIndex;
node:PVirtualNode;
begin
if VSTreeTestNumber.FocusedNode=nil then Exit;

node:=VSTreeTestNumber.FocusedNode;
Column:=VSTreeTestNumber.FocusedColumn;

VSTreeTestNumber.EditNode(node,Column);
end;

3.实现virtualStringtree的ONCreateEditor事件
功能假如editnode被调用，则执行此函数；之前设置editDelay:0，是为避免在不答应改动的node上出现editor

TMMSLibraryForm版本

procedure TMMSLibraryForm.DataTreeCreateEditor(Sender: TBaseVirtualTree;
Node: PVirtualNode; Column: TColumnIndex; out EditLink: IVTEditLink);
begin
EditLink:=TStringEditLink.create('',stringlist[node.index * 5+Column])
end;

TSPNumbersForm版本

procedure TSPNumbersForm.VSTreeSPnumberCreateEditor(
Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex;
out EditLink: IVTEditLink);
begin
EditLink:=TStringEditLink.create('',stringlist[node.index * 7+Column]);
end;

TTestNumberForm版本

procedure TTestNumberForm.VSTreeTestNumberCreateEditor(
Sender: TBaseVirtualTree; Node: PVirtualNode; Column: TColumnIndex;
out EditLink: IVTEditLink);
begin
EditLink:=TStringEditLink.create('',stringlist[node.index * 4+Column]);
end;

4.实现virtualStringtree的ONNewText事件
功能根据获取焦点的node的column，判定值的合法性，并同时更新数据库和stringlist

TMMSLibraryForm版本

procedure TMMSLibraryForm.DataTreeNewText(Sender: TBaseVirtualTree;
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
var
sql:string;
begin
case Column of
0:
begin
if (StrToInt64Def(Trim(NewText),-1)=-1) then
begin
ShowMessage('"'+Trim(NewText)+'"'+'does not represent a valid number!');
Exit;
end;

sql:='update mmslibrary set MMS_ID='+Trim(NewText)+' where MMS_ID='+Stringlist.strings[node.Index*5];

end;

1:
sql:='update mmslibrary set MMS_Type="'+Trim(NewText)+'" where MMS_ID='+Stringlist.strings[node.Index*5];

2:
sql:='update mmslibrary set MMS_Smil="'+Trim(NewText)+'" where MMS_ID='+Stringlist.strings[node.Index*5];

4:
sql:='update mmslibrary set MMS_Subject="'+Trim(NewText)+'" where MMS_ID='+Stringlist.strings[node.Index*5];

end;

if currentdatabase.ExecuteSqlNoQurey(sql)= 1 then
ShowMessage('Save to Database sucessfully!')
else
ShowMessage('Error occurs while Saving to Database!');

Stringlist.strings[node.Index*5+Column]:=Trim(NewText);

DataTree.RootNodeCount:=stringlist.Count div 5 ;
DataTree.Refresh;
end;

TSPNumbersForm版本

procedure TSPNumbersForm.VSTreeSPnumberNewText(Sender: TBaseVirtualTree;
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
var
sql:string;
begin
case Column of
0:
begin
if (StrToInt64Def(Trim(NewText),-1)=-1) then
begin
ShowMessage('"'+Trim(NewText)+'"'+'does not represent a valid number!');
Exit;
end;

sql:='update spnumbers set SP_SPID='+Trim(NewText)+' where SP_SPID='+Stringlist.strings[node.Index*7];
end;
1:
sql:='update spnumbers set SP_Name="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
2:
sql:='update spnumbers set SP_Nameforshort="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
3:
sql:='update spnumbers set SP_operationtype="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
4:
sql:='update spnumbers set SP_Code="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
5:
sql:='update spnumbers set SP_operationcode="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
6:
sql:='update spnumbers set SP_operationName="'+Trim(NewText)+'" where SP_SPID='+Stringlist.strings[node.Index*7];
end;

if currentdatabase.ExecuteSqlNoQurey(sql)= 1 then
ShowMessage('Save to Database sucessfully!')
else
ShowMessage('Error occurs while Saving to Database!');

Stringlist.strings[node.Index*7+Column]:=Trim(NewText);

VSTreeSPnumber.RootNodeCount:=stringlist.Count div 7 ;
VSTreeSPnumber.Refresh;
end;

TTestNumberForm版本

procedure TTestNumberForm.VSTreeTestNumberNewText(Sender: TBaseVirtualTree;
Node: PVirtualNode; Column: TColumnIndex; NewText: WideString);
var
sql:string;
begin
case Column of
0:
begin
if (StrToInt64Def(Trim(NewText),-1)=-1) then
begin
ShowMessage('"'+Trim(NewText)+'"'+'does not represent a valid number!');
Exit;
end;

sql:='update testnumbers set TN_MSISDN='+Trim(NewText)+' where TN_MSISDN='+Stringlist.strings[node.Index*4];
end;
1:
sql:='update testnumbers set TN_Imsi="'+Trim(NewText)+'" where TN_MSISDN='+Stringlist.strings[node.Index*4];
2:
sql:='update testnumbers set TN_Location="'+Trim(NewText)+'" where TN_MSISDN='+Stringlist.strings[node.Index*4];
3:
sql:='update testnumbers set TN_Description="'+Trim(NewText)+'" where TN_MSISDN='+Stringlist.strings[node.Index*4];
end;

if currentdatabase.ExecuteSqlNoQurey(sql)= 1 then
ShowMessage('Save to Database sucessfully!')
else
ShowMessage('Error occurs while Saving to Database!');

Stringlist.strings[node.Index*4+Column]:=Trim(NewText);

VSTreeTestNumber.RootNodeCount:=stringlist.Count div 4 ;
VSTreeTestNumber.Refresh;
end;