If the operation sets an internal state flag that was registered with member exceptions, the function throws an exception of member type failure. Multiple flags may be set by a single operation. When set, the integrity of the stream may have been affected. The construction of sentry failed (such as when the stream state was not good before the call).Įrror on stream (such as when this function catches an exception thrown by an internal operation). The function stopped extracting characters because the input sequence has no more characters available ( end-of-file reached). If this is the end-of-file value ( EOF), no character will compare equal, and thus exactly n characters will be discarded (unless the function fails or the end-of-file is reached).Įrrors are signaled by modifying the internal state flags: Note that the delimiting character is extracted, and thus the next input operation will continue on the character that follows it (if any). If this is exactly numeric_limits::max(), there is no limit: As many characters are extracted as needed until delim (or the end-of-file) is found.ĭelim Delimiting character: The function stops extracting characters as soon as an extracted character compares equal to this. Parameters n Maximum number of characters to extract (and ignore). Then (if good), it extracts characters from its associated stream buffer object as if calling its member functions sbumpc or sgetc, and finally destroys the sentry object before returning. Internally, the function accesses the input sequence by first constructing a sentry object (with noskipws set to true). If this is reached prematurely (before either extracting n characters or finding delim), the function sets the eofbit flag. The function also stops extracting characters if the end-of-file is reached. Private Function GetCount(Byval VoteName As String)ĭo While infile.Extracts characters from the input sequence and discards them, until either n characters have been extracted, or one compares equal to delim. Outfile.WriteLine(VoteName & ",1" & VbCrLf) 'if the vote name is not found in the file Whole_line = Whole_line.replace(VoteName & "," & vote_count, VoteName & "," & vote_count + 1) 'the line will only be replace if the person name is found in the line 'read through the whole file until the end or find the nameĭo While infile.Peek() >= 0 And person VoteName Infile = New IO.File.StreamReader("Votes.txt") Private Sub AddCount(Byval VoteName As String) Try this, Private Sub btnVote_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVote.Click Then when you click Vote button, you should read the number for Mark, increment by 1 and write it back. You should try putting the name and count in your vote file rather than just the name, e.g. In your btnVote_Click function you are writing the radiobutton text into the file everytime you click on it, that's how the issue to be created.Īlso you are counting how many times the name appears in the file as the number of vote but not the number. Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click Private Sub btnResult_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnResult.Click MessageBox.Show("You should select one among them") Private Sub btnVote_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnVote.Click Outfile = IO.File.CreateText("Votes.txt") Private Sub Voter_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load I'm thinking using a counter variable, but not really sure how to really implement it in. How do I display the actual number of how many time they were voted for. for example, if perez was voted for 4 times, in the access file perez is displayed on 4 different lines. The way my program is written right now, the name of the candidate appears as many times as the vote was saved. What I am trying to do is in my access file is to display the number of votes as an actual number. Each type the user clicks the save vote button, the amount of votes gets stored. I am working on a program in Visual Basic that incorporates using a sequential access file for a ballot type program.
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