How do I change Button Text color onclick event(asp.net, C#)using Css file?

Question

I have CSS classfile. So when I click on button the buttontext should be in green.

.buttongreen
{
    color:green;    
}

Answer 1

It can be done without changing any cssClass. You can change your button text color like this

void OnClick1(object sender, RoutedEventArgs e)
{
        btn.Forecolor = System.Drawing.Color.Green;
}

Or you can change your button background color like this:

void OnClick1(object sender, RoutedEventArgs e)
{
    btn.Backgroundcolor = System.Drawing.Color.Green;
}

Answer 2

If you only want to change color of button in code behind than do this

btnName.Style.Add(HtmlTextWriterStyle.Color, "green");

Here btnName is ID of button.

And if you want to add a class than do this

btnName.Attributes.Add("class", "buttongreen");

Answer 3

You can do it in two ways:

1. Using javascript

   <script type="text/javascript">
   
   function changeColor()
   

   {

   document.getElementById("buttonName").className = "MyClass";
   

   }

   <script>
   

call this function OnClientClick

2. In code behind

   btnName.Attributes.Add("class", "buttongreen");

Answer 4

Change the foreground color of your button text from OnClick event.

button.Forecolor = System.Drawing.Color.Green;

I hope this will work for you without CSS.

Answer 5

I have updated my answer using cssClass OF button. Not sure but this may help you ..

protected void button_Click(object sender, EventArgs e)
{
    button.CssClass = "buttongreen";
}