Converting a string into double

Question

I'm trying to convert a string into a doble in this way:

string latitude = reader.GetAttribute("lat");
string longitude = reader.GetAttribute("lon");
double lat = Convert.ToDouble(latitude);
double lon = Convert.ToDouble(longitude);

When latitude has a value of: 51.66777, lat has a value of 51667777... The same problem for longitude. When I convert the string, the point disappear. Can someone help me?

Thanks!

Hiren Soni · Answer

Santhosh N · Answer

Try to form the whole string message in C# and pass that to javascript ansd check..

Sven Nijs · Answer

Is it possible the point disappear because I test the value in a message box? When I show the double value in this text box the point disappears, the string version shows the point... String latitude = reader.GetAttribute("lat"); String longitude = reader.GetAttribute("lon"); Double lat = System.Convert.ToDouble(latitude); Double lon = System.Convert.ToDouble(longitude); HtmlPage.Window.Alert("Lat: " + lat + ", Lon: " + lon);

Santhosh N · Answer

There should not be any problem in your code except the data might be coming differently.. check if you are getting . or , carefullly and check if you are getting other characters and wanted to convert thenm to . you can use this string latitude = reader.GetAttribute("lat"); string longitude = reader.GetAttribute("lon"); double lat = Convert.ToDouble(latitude.Replace(',','.'); //Replaces all , with . double lon = Convert.ToDouble(longitude.Replace(',','.');

Sven Nijs · Answer

I did i your way: String latitude = reader.GetAttribute("lat"); String longitude = reader.GetAttribute("lon"); Double lat = System.Convert.ToDouble(latitude); Double lon = System.Convert.ToDouble(longitude); But the point of the string value still disappear after conversion to double...

Lalit M · Answer

also try this sample code string input = "5"; int i = Int32.Parse(input); double d = Double.Parse(input); char c = Char.Parse(input); bool b = Boolean.Parse(input); for reference

Rekha Singh · Answer

i think ur code is correct . i got correct result when i tried in d same way string latitude = "51.66777" ; double lat = Convert .ToDouble(latitude); Label1.Text = lat.ToString(); output : 51.66777 ***************************************** Please mark it Accepted if u find it helpful.

Lalit M · Answer

Use this code sample String salary = "5555"; // Sample 1 Double mySalary = Double.Parse(salary); // Sample 2 mySalary = System.Convert.ToDouble(salary);

Converting a string into double

Answers (8)