Use JavaScript to place cursor at end of text in text input element

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What is the best way (and I presume simplest way) to place the cursor at the end of the text in a input text element via JavaScript - after focus has been set to the element

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30条回答

孤城傲影

2020-11-22 03:33

<script type="text/javascript">  
    function SetEnd(txt) {  
      if (txt.createTextRange) {  
       //IE  
       var FieldRange = txt.createTextRange();  
       FieldRange.moveStart('character', txt.value.length);  
       FieldRange.collapse();  
       FieldRange.select();  
       }  
      else {  
       //Firefox and Opera  
       txt.focus();  
       var length = txt.value.length;  
       txt.setSelectionRange(length, length);  
      }  
    }   
</script>

This function works for me in IE9, Firefox 6.x, and Opera 11.x

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半阙折子戏

2020-11-22 03:34

Set the cursor when click on text area to the end of text... Variation of this code is...ALSO works! for Firefox, IE, Safari, Chrome..

In server-side code:

txtAddNoteMessage.Attributes.Add("onClick", "sendCursorToEnd('" & txtAddNoteMessage.ClientID & "');")

In Javascript:

function sendCursorToEnd(obj) {
    var value =  $(obj).val(); //store the value of the element
    var message = "";
    if (value != "") {
        message = value + "\n";
     };
    $(obj).focus().val(message);
    $(obj).unbind();
 }

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南方客

2020-11-22 03:34

I also faced same problem. Finally this gonna work for me:

jQuery.fn.putCursorAtEnd =  = function() {

  return this.each(function() {

    // Cache references
    var $el = $(this),
        el = this;

    // Only focus if input isn't already
    if (!$el.is(":focus")) {
     $el.focus();
    }

    // If this function exists... (IE 9+)
    if (el.setSelectionRange) {

      // Double the length because Opera is inconsistent about whether a carriage return is one character or two.
      var len = $el.val().length * 2;

      // Timeout seems to be required for Blink
      setTimeout(function() {
        el.setSelectionRange(len, len);
      }, 1);

    } else {

      // As a fallback, replace the contents with itself
      // Doesn't work in Chrome, but Chrome supports setSelectionRange
      $el.val($el.val());

    }

    // Scroll to the bottom, in case we're in a tall textarea
    // (Necessary for Firefox and Chrome)
    this.scrollTop = 999999;

  });

};

This is how we can call this:

var searchInput = $("#searchInputOrTextarea");

searchInput
  .putCursorAtEnd() // should be chainable
  .on("focus", function() { // could be on any event
    searchInput.putCursorAtEnd()
  });

It's works for me in safari, IE, Chrome, Mozilla. On mobile devices I didn't tried this.

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予麋鹿

2020-11-22 03:36
I like the accepted answer a lot, but it stopped working in Chrome. In Chrome, for the cursor to go to the end, input value needs to change. The solution is as follow:
```
<input id="search" type="text" value="mycurrtext" size="30" 
   onfocus="var value = this.value; this.value = null; this.value = value;" name="search"/>
```
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孤城傲影

2020-11-22 03:37

Still the intermediate variable is needed, (see var val=) else the cursor behaves strange, we need it at the end.

<body onload="document.getElementById('userinput').focus();">
<form>
<input id="userinput" onfocus="var val=this.value; this.value=''; this.value= val;"
         class=large type="text" size="10" maxlength="50" value="beans" name="myinput">
</form>
</body>

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轮回少年

2020-11-22 03:37
I tried the suggestions before but none worked for me (tested them in Chrome), so I wrote my own code - and it works fine in Firefox, IE, Safari, Chrome...

In Textarea:
```
onfocus() = sendCursorToEnd(this);
```
In Javascript:
```
function sendCursorToEnd(obj) { 
var value = obj.value; //store the value of the element
var message = "";
if (value != "") {
    message = value + "\n";
};
$(obj).focus().val(message);}
```
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