2

我的 twebbrowser 中有以下选择

<Select name="ship_to_method">
<option value="1941">Royal Mail Standard Delivery at £1.45 </option>
<option value="1942">Courier Standard Delivery  at £4.64 </option>
<option value="1943">Royal Mail Priority Delivery at £1.66 </option>
<option value="1944">Courier Priority Delivery at £5.15 </option>
</select>

选项的数量和值动态变化，

我怎样才能将选项放入数组中，所以我有..

option_ids=(1941,1942,1943,1944);

option_texts=("Royal Mail Standard Delivery at £1.45","Courier Standard Delivery  at £4.64","Royal Mail Priority Delivery at £1.66","Courier Priority Delivery at £5.15");

如果有人有任何代码可以分享，那就太好了！

非常感谢

斯图

4

2 回答 2

2

更新：在 2017+ 年，TEmbeddedWb 并不是一个很好的选择。请查看 Delphi 中的 DCEF（铬浏览器）。

我知道如何使用 TEmbeddedWB 来做到这一点，它最初来自现已解散的网站 www.bsalsa.com，仍可在sourceforge和github获得，它是一个性能更高、功能更丰富的 IE 包装器，它取代了 TWebBrowser 你使用这样的东西：

 procedure Dummy;
 var
    element: IHTMLElement;
 begin
    element := EmbeddedWB1.GetActiveElement;
 end;

获得元素后，从 IHTMLElement 获取其 HTML 就很简单了。

我从我的应用程序中取出所有 TWebBrowser 并放入 TEmbeddedWB 以进行十几个出色的错误修复和类似这样的功能，例如在这种情况下，它只是使获取活动控件（如这个 html SELECT（下拉列表）控件）变得容易.

于 2011-07-21T03:07:34.677 回答
2

使用TWebBrowser命名Wb您可以通过以下方式获取您的 ID 和文本：

uses MSHTML;

var
  Disp: IDispatch;
  SelEl: IHTMLSelectElement;
  i: Integer;
  OptionEl: IHTMLOptionElement;
  option_ids: array of WideString;
  option_texts: array of WideString;
begin
  // load test web page containing your SELECT
  Wb.Navigate('c:\temp\select.htm');
  // wait for browser to finish loading
  while Wb.ReadyState <> READYSTATE_COMPLETE do
    Application.ProcessMessages;
  // search the document for the SELECT element with the given name
  Disp:=(Wb.ControlInterface.Document as IHTMLDocument2).all.item('ship_to_method', EmptyParam);

  // EDIT: the following two lines are demonstrating how to get the element with focus 
  // simulate user selection by setting focus to SELECT element 
  (Disp as IHTMLElement2).focus;
  // now ask document for active element which should be the SELECT element
  Disp:=(Wb.ControlInterface.Document as IHTMLDocument2).activeElement;

  // basic error checking and acquiring of IHTMLSelectElement interface which is needed to access single OPTIONs within the SELECT
  if Assigned(Disp) and Supports(Disp, IHTMLSelectElement, SelEl) then
  begin
    // prepare array
    SetLength(option_ids, SelEl.length);
    SetLength(option_texts, SelEl.length);
    // get OPTIONs from SELECT
    for i:=0 to SelEl.length-1 do
    begin
      OptionEl := SelEl.Item(i,EmptyParam) as IHTMLOptionElement;
      // voila - read value and text of option element, store in arrays
      option_ids[i] := OptionEl.Value;
      option_texts[i] := OptionEl.Text;
    end;
  end;
  // option_ids now contains your IDs
  // option_texts now contains your texts
end;

编辑：也添加option_texts了。

Edit2：这是网页“select.htm”：

<html>
<head>
</head>
<body>
<Select name="ship_to_method">
    <option value="1941">Royal Mail Standard Delivery at £1.45 </option>
    <option value="1942">Courier Standard Delivery  at £4.64 </option>
    <option value="1943">Royal Mail Priority Delivery at £1.66 </option>
    <option value="1944">Courier Priority Delivery at £5.15 </option>
</select>
</body>
</html>
于 2011-07-21T15:06:31.877 回答