You may require the code to disable right click in any webpage.

Then just place the below simple code.

oncontextmenu=”return false;”

Examples:
1) Don’t want right click on whole web, place it in “body” tag.

2) Don’t want right click on particular element like textbox, text area place the code in that element

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Problem:
In case we are saving data in database on click of a button, and what happens if a user hits refresh??
The data will be saved twice in the database. How can we avoid this behavior??
 
Solution:
Here is the solution in case the website is being developed in asp.net version 1.1 + with C# as the scripting language. The below implementation is designed by keeping “Order of page lifecycle events” in mind. The event order is Page_Load => btnSubmit_Click => Page_PreRender. The following code can be implemented to avoid the problem.
    
   protected void Page_Load(object sender, EventArgs e)
        {
            if (!IsPostBack)
            {
                Session["RefrechCheck"] = DateTime.Now.ToString();   
            }           
        }
        protected void Page_PreRender(object sender, EventArgs e)
        {
            ViewState["RefrechCheck"] = Session["RefrechCheck"];           
        } 
protected void btnSubmit_Click(object sender, EventArgs e)
        {
 if (Page.IsValid && Session["RefrechCheck"].ToString() == ViewState["RefrechCheck"].ToString())
       {
                Session["RefrechCheck"] = DateTime.Now.ToString();   
                int result = SaveComment();
             }
        }
 
Happy coding.

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