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Cannot set property 'value' of null


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procedure TMainForm.UniBitBtn1Click(Sender: TObject);
begin
  UniSession.AddJS('document.getElementById("txtReceptor").value="'+UniEdit1.Text+'";'); //transfer content
end;

procedure TMainForm.UniFormCreate(Sender: TObject);
begin
   // UnihtmlFrame2.HTML.loadfromfile('index3.html');  //this is  work
    UniURLFrame1.HTML.loadfromfile('index3.html');     //if i use  uniURLFrame not ok, why???????  

Cannot set property 'value' of null
 

end;

 

 

************index3.html*********************

<!DOCTYPE html>
<html lang="pt-BR">
<head>
  <title>Test HTML</title>
</head>

<body>
  <form id="frmTeste">
   
   <p><strong>Input Receptor:</strong> <input type="text" name="textReceptor" size=80  id="txtReceptor" value="" />
   
    <form>
  
 
</body>
</html>

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  • 2 weeks later...

Same question

UniURLFrame1.HTML:

<!--核心库-->

<link rel=stylesheet href="uni-1.90.0.1514/codemirror-5.25/doc/docs.css">

<link rel="stylesheet" href="uni-1.90.0.1514/codemirror-5.25/lib/codemirror.css">

<script src="uni-1.90.0.1514/codemirror-5.25/lib/codemirror.js"></script>

<!--支持主题-->

<link rel="stylesheet" href="uni-1.90.0.1514/codemirror-5.25/theme/abcdef.css">

<!--选中行亮显-->

<script src="uni-1.90.0.1514/codemirror-5.25/addon/selection/active-line.js">

</script>

<!--匹配括号-->

<script src="uni-1.90.0.1514/codemirror-5.25/addon/edit/matchbrackets.js"></script>

<!--支持语言-->

<script src="uni-1.90.0.1514/codemirror-5.25/mode/pascal/pascal.js">

</script><style type="text/css">.CodeMirror {border-top: 0px solid black; border-bottom: 0px solid black;}</style>

<!--创建对象-->

<div><textarea id="O109code" name="O109code">begin
  
end.</textarea>

</div>

<!--执行脚本-->

<script>var  O109editor = CodeMirror.fromTextArea(document.getElementById("O109code"), {    

theme:"abcdef",    styleActiveLine: true,    lineNumbers: true,    lineWrapping:true,    foldGutter: true,    tabSize:4,    gutters:["CodeMirror-linenumbers", "CodeMirror-foldgutter"],    fullScreen:true,    matchBrackets:true,    mode: "text/x-pascal"});    

O109editor.setSize('100%', '100%');

</script>

How to call O109editor. Getdoc(). SetValue in Delphi

 


 

 

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