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Show message when user exceed limit size of a textbox in asp.net mvc app

Manish Kumar 1635 15 Nov 2017

Show message when user exceed limit size of a textbox in asp.net mvc app

I am developing a mvc application in that I want to display a message when the user types more than 20 characters in the textbox. This needs to validate without clicking on any validate button.

This is my current code :

<span class="field">@Html.TextBoxFor(d => d.Name,new {maxlength=20})</span>

Ask by Manish Kumar

Updated 16 Nov 2017

1 Answers

Sunil Singh 16 Nov 2017

Use this code

In the Model

[StringLength(250, ErrorMessage = "Description must not be more than 250 chars")]

        public string Name{ get; set; }

View code

HtmlHelper.ClientValidationEnabled = true;

  HtmlHelper.UnobtrusiveJavaScriptEnabled = true; 



<div class="col-md-12">

                                <div class="form-group">

                                   

                                    @Html.TextAreaFor(m => m.Name, new { @class = "form-control"})

                                    @Html.ValidationMessageFor(x=>x.Name)

                                </div>

                            </div>

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