delphi开发修改并提交Web表单内容
程序代码主要是通过WebBrowser控件来实现修改并提网页表单内容，FillSelectForm函数是实现修改选择框的内容，以下是实现函数程序代码：
function TForm1.FillSelectForm(WebBrowser: TWebBrowser; FieldName: string; Value: integer): Boolean;
var
i, j: Integer;
FormItem: Variant;
hform:IHTMLFormelement;
hdoc:ihtmldocument2;
hall:ihtmlelementcollection;
Hinput:IHTMLinputelement;
Hselect:IHTMLSelectElement;
hlen,tmploop:integer;
vk:oleVariant;
dispatch:IDispatch;
begin
Result := False;
if WebBrowser.OleObject.Document.all.tags('FORM').Length = 0 then
begin
Exit;
end;
if Assigned(WebBrowser) then
begin
hdoc:=WebBrowser.document as ihtmldocument2;
hall :=hdoc.get_all;
hlen := hall.get_length;
for tmploop:=0 to hlen-1 do
begin
vk := tmploop;
dispatch := hall.item(vk,0);
if succeeded(Dispatch.QueryInterface(IHTMLSelectElement,Hselect)) then
begin
if (lowercase(Hselect.name)='xingzuo') then
begin
Hselect.selectedIndex := Value;
Result := True;
end;
end;
end;
end;
end;
SubmitForm函数是实现提交表单处理,以下是实现函数程序代码：
function TForm1.SubmitForm(WebBrowser: TWebBrowser;
FormName: string): Boolean;
var
i, j,k: Integer;
FormItem: Variant;
hform:IHTMLFormelement;
hdoc:ihtmldocument2;
hall:ihtmlelementcollection;
Hinput:IHTMLinputelement;
Hselect:IHTMLSelectElement;
hlen,tmploop:integer;
vk:oleVariant;
dispatch:IDispatch;
iw:IWebbrowser2;
begin
Result := False;
k:=0;
if WebBrowser.OleObject.Document.all.tags('FORM').Length = 0 then
begin
Exit;
end;
if Assigned(WebBrowser) then
begin
hdoc:=WebBrowser.document as ihtmldocument2;
hall :=hdoc.get_all;
hlen := hall.get_length;
for tmploop:=0 to hlen-1 do
begin
vk := tmploop;
dispatch := hall.item(vk,0);
if succeeded(Dispatch.QueryInterface(IHTMLFormelement,hform)) and (lowercase(hform.name)='xingzuoday') then
begin
hform.target :='';
hform.submit;
Result := True;
Break;
end;
end;
end;
end;
SubmitForm函数是实现提交表单处理,以下是实现函数程序代码：