How can I set Textbox max length when using multiline? 1

[joelwenzel]

How can I set the textbox's maximum length when using multiline? For single line, the maxlength property works but it does not apply to multiline. I've tried using 50 columns and 3 rows (for a character length of 150 but I am having no luck)

any ideas?

 

[jbenson001]

That is because the textbox renders as a <textarea> HTML control when you set the TextMode property to MultiLine. On the <textarea> control, there is no MaxLength propery. You will have to conrol it using javascript. See this link for an example:

http://javascript.internet.com/forms/limit-textarea.html

Jim

 

[ca8msm]

As Jim points out, you can only do this via javascript, however, there is a slightly smaller script you can use (although it may be best to check in the javascript forum for the best way of doing what you need). In this example I've registered all the necessary code server-side:

    Private Sub Page_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Page.RegisterClientScriptBlock("limittextarea", "<script>function setTextAreaLength(Object, MaxLength){return (Object.value.length <= MaxLength);}</script>")
        TextBox1.Attributes.Add("onkeypress", "return setTextAreaLength(this, 150);")
    End Sub

____________________________________________________________

Need help finding an answer?

Try the Search Facility or read FAQ222-2244 on how to get better results.

 

[joelwenzel]

Worked like a charm. Thanks