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Re: Convert.toDouble input string was not in correct format

veddzik — Sat, 04 Jul 2009 19:36:37 GMT

Thank you guys for all your answers. Method TryParse resolved my problem.

Re: Convert.toDouble input string was not in correct format

hminaya — Sat, 04 Jul 2009 14:44:50 GMT

What culture are u using?

Re: Convert.toDouble input string was not in correct format

shahed.kazi — Sat, 04 Jul 2009 14:38:38 GMT

I tried the code

string ax = "$22.50";
        ax = ax.Replace("$", "");
        ax = ax.Replace(".", ",");
        Response.Write("ax is " + ax);

        double dx = Convert.ToDouble(ax);
        Response.Write("dx is: " +dx.ToString());

and it works fine.

Re: Convert.toDouble input string was not in correct format

malcolms — Sat, 04 Jul 2009 00:40:04 GMT

A good idea also is to use TryParse. That will catch any errors:

double result = 0;
if(double.TryParse(yourstring, out result))
{
      // valid double
}

Re: Convert.toDouble input string was not in correct format

ctheriault — Fri, 03 Jul 2009 23:49:46 GMT

It also depends of the current culture of the thread executing Convert.ToDouble()

For instance Convert.ToDouble("22,50") works fine if CurrentCulture is French because French use a coma as decimal separator.

You don't necessare need to change the default of the thread's culture; you can define the convesion provider. You don't necessary need to remove the currency symbol either if you provide the proper conversion params. For instance in the snippet below I also assumed you would need to have a space as group separator instead of the american style's coma:

System.Globalization.NumberFormatInfo nfi = new
System.Globalization.NumberFormatInfo();
nfi.CurrencySymbol = "£";
nfi.CurrencyDecimalSeparator = ",";
nfi.NumberGroupSeparator = " ";
nfi.NumberDecimalDigits = 2;
decimal d = Decimal.Parse("£78 022.50", nfi);

Bye

Re: Convert.toDouble input string was not in correct format

srinivaskotra — Fri, 03 Jul 2009 19:23:07 GMT

Hi,

Dim dbl As Double
        Dim str As String = "£22.50"
        Str = Str.Replace("£", "")
        Str = Str.Replace(".", ",")
        dbl = Convert.ToDouble(str)
        TextBox1.Text = dbl;

This is working with me

Re: Convert.toDouble input string was not in correct format

nijhawan.saurabh — Fri, 03 Jul 2009 19:07:46 GMT

{

string s = "22.45";
double p = Convert.ToDouble(s);
Response.Write(p.ToString());

}

This worked perfectly fine.

Convert.toDouble input string was not in correct format

veddzik — Fri, 03 Jul 2009 16:03:49 GMT

Hello,

I can't figure out why it' possible to convert my string. Error message is: input string was not in correct format

This is my code, which make an error:

Dim dbl as Double
Dim str as String = "£22.50")
str = str.Replace("£", "")
str = str.Replace(".", ",")
dbl = Convert.ToDouble(str)

But if I try this, it's work:

dbl = Convert.ToDouble("22,50")

What's going on ?