Format Exception Unhandled
When I run this program I get a Format Exception was Unhandled Input String Format was not a correct format. It happens at the 2nd Listbox1.text line when I have the Sting formatted Anyone have any ideas
vb.net Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim Pop As IO.StreamReader = IO.File.OpenText("populationdata.txt")
Dim Group As String
Dim Male, Female, Total, Male2, Female2, Total2 As Double
Dim Total3 As Double
Dim fmtstng As String = "{0,-15} {1,14} {2,13} (3,12:p} {4,11:p} {5,10:p}"
Group = Pop.ReadLine
Total += CDbl(Pop.ReadLine)
Total += CDbl(Pop.ReadLine)
Group = Pop.ReadLine
Total += CDbl(Pop.ReadLine)
Total += CDbl(Pop.ReadLine)
Group = Pop.ReadLine
Total += CDbl(Pop.ReadLine)
Total += CDbl(Pop.ReadLine)
Pop.Close()
ListBox1.Items.Add("Age Group Females %Males %Females %Total")
Pop = IO.File.OpenText("populationdata.txt")
Group = Pop.ReadLine
Male = CDbl(Pop.ReadLine)
Female = CDbl(Pop.ReadLine)
Total2 = Male + Female
Male2 = Male / Total2 * 100
Female2 = Female / Total2 * 100
Total3 = Total2 / Total * 100
ListBox1.Items.Add(String.Format(fmtstng, Group, Male, Female, Male2, Female2, Total3)):wave: This is where I have the issue
Group = Pop.ReadLine
Male = CDbl(Pop.ReadLine)
Female = CDbl(Pop.ReadLine)
Total2 = Male + Female
Male2 = Male / Total2 * 100
Female2 = Female / Total2 * 100
Total3 = Total2 / Total * 100
ListBox1.Items.Add(String.Format(fmtstng, Group, Male, Female, Male2, Female2, Total3))
Group = Pop.ReadLine
Male = CDbl(Pop.ReadLine)
Female = CDbl(Pop.ReadLine)
Total2 = Male + Female
Male2 = Male / Total2 * 100
Female2 = Female / Total2 * 100
Total3 = Total2 / Total * 100
ListBox1.Items.Add(String.Format(fmtstng, Group, Male, Female, Male2, Female2, Total3))
Pop.Close()
Re: Format Exception Unhandled
Re: Format Exception Unhandled
It looks like you are using String.Format incorrectly. What are you intending to happen when you use String.Format?
Re: Format Exception Unhandled
Im using the String Format to post the variables pulled from the Text files in a list box in certain format that looks like this
Age Group Males Females %males %females %total
25-40 51,015 47,898 51.15% 48.9% 35%
There second line is what I am trying to print to the list box with that string.format code
Re: Format Exception Unhandled
You need at least two arguments for System.String.Format. Have a look through the Object Browser for details on it.
Re: Format Exception Unhandled
