Restrict comma in asp.net textbox

Question

I want to restrict the use of comma in textbox. Initially the textbox is disabled and only when the user clicks on a related checkbox, the textbox is enabled.

Here is the code I have tried:

function checkForComma(keyCode) {
    if (event.keyCode == 188) {
        alert('Not allowed');
    }
}

And the EditorTemplate:

@Html.TextBoxFor(m => m.AddressLine1, @Model.isUsed ? 
    (object)new { @class = "form-control" } : 
    new { @class = "form-control", @disabled = "disabled", @onkeypress = "checkForComma(this);" })

@Html.ValidationMessageFor(m => m.AddressLine1)

Manish Parakhiya · Accepted Answer · 2015-06-09 09:42:29Z

2

you forgot to place return false in your function. modify you function following

function checkForComma(event) {
    if (event.charCode == 44) {
        alert('Not allowed');
        return false;
    }else{
        return true;
    }
}

Also modify your html code as following

@Html.TextBoxFor(m => m.AddressLine1, @Model.isUsed ? 
    (object)new { @class = "form-control" } : 
    new { @class = "form-control", @disabled = "disabled", @onkeypress = "return checkForComma(event);" })

edited Jun 9, 2015 at 9:42

answered Jun 9, 2015 at 7:59

Manish Parakhiya

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6 Comments

Manish Parakhiya Over a year ago

Does your alert message display?

Sumedha Vangury Over a year ago

No nothing is displayed

Sumedha Vangury Over a year ago

how can I allow comma in the textbox and restrict it at the end of text entered

Manish Parakhiya Over a year ago

you need to check that on any button click or on blur of text box.

Sumedha Vangury Over a year ago

can you give an example

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