Jump to content

help with implementing this snippet


dadamssg

Recommended Posts

i found this snippet to insert text into a text box where the caret is currently

 

textBox1.Text = textBox1.Text.Insert(textBox1.SelectionStart, "Test");

 

but i don't know where to put this to make it work? is it part of a javascript function? do i put part of it equal to an onclick event?

Link to comment
Share on other sites

Looking at the code

I don't know, however try this

 

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.01 Transitional//EN">
<html>
<head>
<script type="text/javascript">
function insertAtCaret(obj, text) {
	if(document.selection) {
		obj.focus();
		var orig = obj.value.replace(/\r\n/g, "\n");
		var range = document.selection.createRange();

		if(range.parentElement() != obj) {
			return false;
		}

		range.text = text;

		var actual = tmp = obj.value.replace(/\r\n/g, "\n");

		for(var diff = 0; diff < orig.length; diff++) {
			if(orig.charAt(diff) != actual.charAt(diff)) break;
		}

		for(var index = 0, start = 0; 
			tmp.match(text) 
				&& (tmp = tmp.replace(text, "")) 
				&& index <= diff; 
			index = start + text.length
		) {
			start = actual.indexOf(text, index);
		}
	} else if(obj.selectionStart) {
		var start = obj.selectionStart;
		var end   = obj.selectionEnd;

		obj.value = obj.value.substr(0, start) 
			+ text 
			+ obj.value.substr(end, obj.value.length);
	}

	if(start != null) {
		setCaretTo(obj, start + text.length);
	} else {
		obj.value += text;
	}
}

function setCaretTo(obj, pos) {
	if(obj.createTextRange) {
		var range = obj.createTextRange();
		range.move('character', pos);
		range.select();
	} else if(obj.selectionStart) {
		obj.focus();
		obj.setSelectionRange(pos, pos);
	}
}
</script>
</head>
<body>
<form name="form">
	<input type="button" value="Insert text" onclick="insertAtCaret(this.form.text, this.form.string.value)">
	<input type="text" name="string"><br />		
	<textarea name="text" cols="60" rows="10"></textarea>
</form>
</body>
</html>

Link to comment
Share on other sites

This thread is more than a year old. Please don't revive it unless you have something important to add.

Join the conversation

You can post now and register later. If you have an account, sign in now to post with your account.

Guest
Reply to this topic...

×   Pasted as rich text.   Restore formatting

  Only 75 emoji are allowed.

×   Your link has been automatically embedded.   Display as a link instead

×   Your previous content has been restored.   Clear editor

×   You cannot paste images directly. Upload or insert images from URL.

×
×
  • Create New...

Important Information

We have placed cookies on your device to help make this website better. You can adjust your cookie settings, otherwise we'll assume you're okay to continue.