How to Select particular text in textbox while textbox receives focus

Question

I am developing one ASP.NET application with VB code.I have one textbox to hold the amount, which contains default value as \"0.00\". Now the problem is while the textbox gets f

Answer 1

assume you have TextInput you want to select its first character, whenever its selected

<input id="MyText" type="text" value="text" onclick="MyText_click()" />

and the script is like this:

<script>

    function MyText_click() {

        var input = document.getElementById("MyText");
        createSelection(input, 0, 1); // first character
    };

    function createSelection(field, start, end) {
        if (field.createTextRange) {
            var selRange = field.createTextRange();
            selRange.collapse(true);
            selRange.moveStart('character', start);
            selRange.moveEnd('character', end);
            selRange.select();
            field.focus();
        } else if (field.setSelectionRange) {
            field.focus();
            field.setSelectionRange(start, end);
        } else if (typeof field.selectionStart != 'undefined') {
            field.selectionStart = start;
            field.selectionEnd = end;
            field.focus();
        }
    }

</script>

Answer 2

Create event for text focus

Now we have two properties

   txt.SelectionStart = intValue

and

  txt.selectionLength = length;

Use this property to resolve your stuff

Answer 3

you can do that programmatically using javascript, see this: Programmatically selecting partial text in an input field