how to use javascript alert so that user can choose

Question

I am trying to add an alert box so that the user can choose either Yes or No or Ok and Cancel, but it is not working correctly. It is my first time I am trying to do this. I am using visual studio 2010. I am not sure if my code is correct. Can anyone please guide me if I am mistaken.

This is my code:

private void AlertWithOption()
  {
     Response.Write("<script language='javascript'>");
     Response.Write("function onsub() ");
     Response.Write("{ ");
     Response.Write("var where_to= confirm: (\"Are You sure?\")");
     Response.Write("if (where_to== true)");
     Response.Write("{ ");
     Response.Write("return true");
     Response.Write(" }");
     Response.Write("else ");
     Response.Write("{");
     Response.Write("return false;");
     Response.Write(" } ");
     Response.Write("} ");
     Response.Write("</script>");
   }

score 1 · Answer 1 · answered Aug 16 '11 at 11:26

1

First I would try changing this:

Response.Write("var where_to= confirm: (\"Are You sure?\")");

to this:

Response.Write("var where_to= confirm(\"Are You sure?\")");

(The method is confirm() and not confirm:())

answered Aug 16 '11 at 11:26

karim79

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I changed that but it didn't work. Just for your information I am working in a .NET enviroment using c sharp. – mikespiteri Aug 16 '11 at 11:35

score 1 · Answer 2 · answered Aug 16 '11 at 11:32

1

As already mentioned, you had an extra colon in your code. However, there is no need for the lengthy if/then logic, as the confirm javascript method returns a boolean. Your code can be condensed to 3 lines:

Response.Write("<script>");
Response.Write("function onsub() { return confirm(\"are you sure?\"); }");
Response.Write("</script>");

answered Aug 16 '11 at 11:32

Jamiec

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I have to do a database check which is done in c sharp not just link that function to a button clicked event. thanks – mikespiteri Aug 16 '11 at 11:40

score 1 · Answer 3 · answered Aug 16 '11 at 11:39

1

modify this line of code-> Response.Write("var where_to= confirm: (\"Are You sure?\")");
try this->Response.Write("var where_to= confirm ("Are You sure?")");

answered Aug 16 '11 at 11:39

sush

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try your code here--> http://www.w3schools.com/js/tryit.asp?filename=tryjs_confirm – sush Aug 16 '11 at 11:45

score 1 · Answer 4 · answered Aug 16 '11 at 11:43

1

method confirm() is correct but the string inside should be within double quotes that is confirm("Are You Sure?");

answered Aug 16 '11 at 11:43

sush

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Sangeet Menon · Answer 5 · 2011-08-16T12:08:54.050

1

Use confirm() function.

private void AlertWithOption()
  {
    Response.Write("<script language='javascript'>");
    Response.Write("function onsub() ");
    Response.Write("{ ");
    Response.Write("return confirm(\"Are you sure?\")");
    Response.Write("} ");
    Response.Write("</script>");
}

I think you are doing mistake in the syntax of the confirm()

edited Aug 16 '11 at 12:08

answered Aug 16 '11 at 11:50

Sangeet Menon

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saj · Answer 6 · 2011-08-16T11:39:50.490

0

I dont think you want the colon after the confirm, you could do it like this

Response.Write("<script language='javascript'>");
Response.Write("function onsub() ");
Response.Write("{ ");
Response.Write("return confirm(\"Are you sure?\")");
Response.Write("} ");
Response.Write("</script>");

edited Aug 16 '11 at 11:39

answered Aug 16 '11 at 11:28

saj

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Just for your information I am working in a .NET enviroment using c sharp – mikespiteri Aug 16 '11 at 11:36
I've edited my code to show how it would be done using your example – saj Aug 16 '11 at 11:40
-I have to do a database check which is done in c sharp not just link that function to a button clicked event. thanks – mikespiteri Aug 16 '11 at 11:47

how to use javascript alert so that user can choose

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