Question

这是我的表单.html代码所有值通过javascript以xml格式写入

<form id='mrgv"+i+"'>
  <table class='propform'> 
    <tr><td colspan='2'><b>Visual Properties</b></td></tr>
    <tr><td>Name</td><td><input type='text' id='delimitDatanameVisual'></td></tr>
    <tr><td>Description</td>
        <td><input type='text' id='delimitDatadescVisual'></td></tr>
    <tr><td colspan='2'><b>Rule Engine Properties</b></td></tr>
    <tr><td>1. Id &nbsp;&nbsp;</td>
        <td> <input type='text' id='delimitDataidValue'/></td></tr>
    <tr><td>2. Phase No: &nbsp;</td>
        <td><input type='text' id='delimitDataphaseNo'/></td></tr>
    <tr><td>3. KeyFields:</td><td><input type='text' id='delimitDatafileurl' /></td>
        <td><select id='delimitDataabs'>
              <option value='abs'>abs</option>
              <option value='ph'>ph</option></tr>
    <tr><td>4. OPR Flag: &nbsp;</td>
        <td><select id='delimitDataencoding'> 
              <option value='Inner'>Inner</option>
              <option value='LeftOuter'>LeftOuter</option>
              <option value='Duplicate'>Duplicate</option>
              <option value='RightOuter'>RightOuter</option>
            </select></font></td></tr>
    <tr><td>5. OutFlag:</td>
        <td><input type='text' id='outmv' /></td>
        <td><select id='delimitDataabs'> 
              <option value='abs'>abs</option>
              <option value='ph'>ph</option>
    </tr>
  </table>

这是我的javascript，它将上面的表单值写入xml

function mrgv(i)
{              
  var object = new ActiveXObject("Scripting.FileSystemObject");
  var file = object.OpenTextFile("D:\\vyas\\hello.grf",8,true,0);
  var mrgvform=document.getElementById("mrgv"+i);

  var idValue = mrgvform.delimitDataidValue.value;
  var phaseNo = mrgvform.delimitDataphaseNo.value;
  var keyfields=mrgvform.delimitDatafileurl.value;

  var oprflag =mrgvform.delimitDataencoding;
  var oprflagg = oprflag.options[oprflag.selectedIndex].text;

  var outflag =mrgvform.outmv.value;

  //file.WriteLine("<graph>");
  file.WriteLine("<Node" + " id=\"" + idValue +"\" "+ "" + "type=\"MERGE_V\" "+ " " + "Phase No=\""+ phaseNo +"\" "+ "  " + "keyfields=\"" + keyfields +"\" " + " " + "oprflag=\"" + oprflagg +"\" " + "" + "outflag=\"" + outflag +"\" " + " ></Node>" );

  //file.WriteLine("</graph>");
  file.Close();
}

我的问题是：我想将所有值重定向到xml。已完成。如果再次从表单提交值而不是其附加到下一行，但我想在现有值上覆盖该值。

Answer 1

我认为您希望每次都使用新值覆盖XML文件，而不是像日志文件那样附加。您正在使用append方法写入文件，因此它不会清除现有内容。

// you should delete the `D:\\vyas\\hello.grf` file here so it
// is re-created as an empty file on the next line
var file = object.OpenTextFile("D:\\vyas\\hello.grf",8,true,0);

通过javascript覆盖现有的xml值

1 个答案: