IE11浏览器中的<input type =“file”/>定位问题

时间：2015-12-04 15:12:58

标签： javascript html css internet-explorer-11 

#upload-file-container {
  width: 50px;
  height: auto;
  overflow: hidden;
}
#upload-file-container input {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  border: solid transparent;
  border-width: 0 0 100px 200px;
  opacity: 0.0;
  filter: alpha(opacity=100);
  -o-transform: translate(250px, -50px) scale(1);
  -moz-transform: translate(-300px, 0) scale(4);
  direction: ltr;
  cursor: pointer;
}
.buttonText {
  color: #FFFFFF;
  letter-spacing: normal;
  font-family: Arial, sans-serif;
  font-weight: bold;
  font-variant: normal;
  font-size: 11pt font-style: normal;
  text-decoration: none;
  text-transform: none;
  width: 20px;
}
.buttonSpace {
  height: 23px;
  width: 20;
  background-image: url(/portal/images/clearpixel.gif);
}
.buttonRegHead {
  height: 23px;
  width: 7px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_head.gif);
  background-repeat: no-repeat;
}
.buttonRegBody {
  height: 23px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_body.gif);
  background-repeat: repeat-x;
}
.buttonRegTail {
  height: 23px;
  width: 7px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_tail.gif);
  background-repeat: no-repeat;
}
<html>
<table>
  <tr>
    <td align="left" nowrap class="formLabel">IMAGE1:<font color="red">*</font>
    </td>
    <TD>
      <table border=0 cellspacing=0 cellpadding=0>
        <tr>
          <td class='buttonSpace'>&nbsp;</td>
          <td class='buttonRegHead'>&nbsp;</td>
          <td class='buttonRegBody'>
            <div class="buttonText" id="upload-file-container">Browse
              <input type="file" name="realfile1" id="realfile1" onChange="if(validate())preview(this, '1');return true;" />
            </div>
          </td>
          <td class='buttonRegTail'>&nbsp;</td>
        </tr>
      </table>
    </TD>
  </tr>
</table>

</html>

我正在使用包含许多文件输入的Web应用程序。我隐藏了所有文件元素并放置了一个按钮。这在IE8到IE10浏览器中正常工作。但不是在IE11中。以下是我的代码片段：

<style>
    #upload-file-container {
        width:50px;
        height: auto;
        overflow: hidden;
    }
    #upload-file-container input {
        position: absolute;
        top: 0; right: 0; margin: 0;
        border: solid transparent;
        border-width: 0 0 100px 200px;
        opacity: 0.0;
        filter: alpha(opacity=0);
        -o-transform: translate(250px, -50px) scale(1);
        -moz-transform: translate(-300px, 0) scale(4); 
        direction: ltr;
        cursor: pointer;
    }
    .buttonText {
        color: #FFFFFF;
        letter-spacing: normal;
        font-family: Arial, sans-serif;
        font-weight: bold;
        font-variant: normal;
        font-size: 11pt
        font-style: normal;
        text-decoration: none;
        text-transform: none;
        width: 20px;
    }
</style>

<table border=0 cellspacing=0 cellpadding=0>
    <tr> 
        <td class='buttonSpace'>&nbsp;</td>
        <td class='buttonRegHead'>&nbsp;</td>
        <td class='buttonRegBody'>
            <div  class="buttonText" id="upload-file-container">    
                <%=DipapDictionary.translate(request,"Browse")%>
                <input type="file" name="realfile1" id="realfile1" onChange="if(validate())preview(this, '1');return true;"/>
            </div>
        <td class='buttonRegTail'>&nbsp;</td>
    </tr>
</table>

它在IE10浏览器中正常工作。文件输入通过按钮，按钮变为可点击。所以，我能够浏览该文件。 但是在IE11浏览器中，html文件元素位于页面顶部的某个位置，并且浏览按钮不可单击。

5 个答案:

答案 0 :(得分：1)

对于IE11，您只需要定义width CSS规则的CSS height和#upload-file-container input

<强> http://codepen.io/jonathan/pen/LGEJQg/?editors=110

在IE11中打开上面的链接，您将看到浏览文件输入触发器

#upload-file-container input {
    width:100%;
    height:100%;
}

所以你的CSS规则完全如下：

#upload-file-container input {
    position: absolute;
    top: 0; right: 0; margin: 0;
    border: solid transparent;
    border-width: 0 0 100px 200px;
    opacity: 0.0;
    filter: alpha(opacity=0);
    -o-transform: translate(250px, -50px) scale(1);
    -moz-transform: translate(-300px, 0) scale(4); 
    direction: ltr;
    cursor: pointer;

    width:100%; /* add width */
    height:100%; /* add height */
}

如果您需要使其适合或更大，则无需在transform scale()元素上使用CSS transform translate()或#upload-file-container input。

您需要设置的只是元素的width和height。特别是对于IE11，因为它需要width和height，因为它们不会被父元素继承。

答案 1 :(得分：1)

It is quite strange because I tested your snippet on IE 9 & 10 and it wasn't working there as well.

The reason I presume is because you have prefixed transform for Opera & Mozilla vendors

document.getElementById("outputForm").elements...

But don't have a standard transform like this:

-o-transform: translate(250px, -50px) scale(1);
-moz-transform: translate(-300px, 0) scale(4);

Or a Microsoft-prefixed transform like this:

transform: translate(-300px, 0) scale(4);

So when I put it in, it was working as you described: run well on IE 9 & 10 but doesn't work on IE11. So I reckon this is how your actual css is supposed to be.

Anyway, to solve the problem: Apparently translate2d is not working well together with scale on IE11. So My suggestion is to remove the scale part, reducing it to simply -ms-transform: translate(-300px, 0) scale(4); . And so, it works again:

transform: translate(-300px, 0);
#upload-file-container {
  width: 50px;
  height: auto;
  overflow: hidden;
}
#upload-file-container input {
  position: absolute;
  top: 0;
  right: 0;
  margin: 0;
  border: solid transparent;
  border-width: 0 0 100px 200px;
  opacity: 0.0;
  filter: alpha(opacity=100);
  -o-transform: translate(250px, -50px) scale(1);
  -moz-transform: translate(-300px, 0) scale(4);
  -ms-transform: translate(-300px, 0);
  direction: ltr;
  cursor: pointer;
}
.buttonText {
  color: #FFFFFF;
  letter-spacing: normal;
  font-family: Arial, sans-serif;
  font-weight: bold;
  font-variant: normal;
  font-size: 11pt font-style: normal;
  text-decoration: none;
  text-transform: none;
  width: 20px;
}
.buttonSpace {
  height: 23px;
  width: 20;
  background-image: url(/portal/images/clearpixel.gif);
}
.buttonRegHead {
  height: 23px;
  width: 7px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_head.gif);
  background-repeat: no-repeat;
}
.buttonRegBody {
  height: 23px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_body.gif);
  background-repeat: repeat-x;
}
.buttonRegTail {
  height: 23px;
  width: 7px;
  padding: 0;
  margin: 0;
  background-image: url(/DIPAPWebAppln/images/button_regular_tail.gif);
  background-repeat: no-repeat;
}

Edit: since you took the effort to give different browsers different transform value, I will follow suite and use <html> <table> <tr> <td align="left" nowrap class="formLabel">IMAGE1:<font color="red">*</font> </td> <TD> <table border=0 cellspacing=0 cellpadding=0> <tr> <td class='buttonSpace'>&nbsp;</td> <td class='buttonRegHead'>&nbsp;</td> <td class='buttonRegBody'> <div class="buttonText" id="upload-file-container">Browse <input type="file" name="realfile1" id="realfile1" onChange="if(validate())preview(this, '1');return true;" /> </div> </td> <td class='buttonRegTail'>&nbsp;</td> </tr> </table> </TD> </tr> </table> </html> in my answer. But I would suggest having a standardized -ms-transform in your css as well, up to your decision.

答案 2 :(得分：1)

考虑使用这种更简单的方法来实现同样的目标：

<label>
    Click me!
    <input type="file" style="display:none" onchange="alert('do stuff')"/>
</label>

文件输入被隐藏，但点击标签将触发文件对话框。

不需要javascript。不需要绝对定位。

答案 3 :(得分：0)

您可以通过在<head>中添加以下元标记来告诉IE11表现为IE10：

<meta http-equiv="X-UA-Compatible" content="IE=10">

但是，在使用<input type="file">时，我的个人偏好是使用＆display：none＆＃39;隐藏它，并使用javascript操纵它。虽然安全问题意味着您无法设置文件输入的值，但您仍然可以触发click事件，订阅onChange事件（正如您已经在做的那样），以及读取文件输入的值，或从files属性读取。

答案 4 :(得分：0)

以下内容:(添加到CSS）

input[type=file]
{
margin-right:something;
margin-left:something;
left:something;
right:something;
top:something;
bottom:something;
}
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