Mon enseignant souhaite donc que la classe recherche un nom d'auteur dans un fichier et affiche toutes les informations sur cet auteur dans une zone de texte comme une étiquette de publipostage.Comment rechercher un fichier texte dans Visual basic
Voici mon code j'ai ajouté une image ci-dessous. Je suis vraiment perdu en ce qui concerne l'obtention du programme pour prendre la chaîne Authors et chercher un autre fichier. Je peux afficher le nom de l'auteur de façon optimale, mais comment chercher un autre fichier pour ce nom et afficher les informations sur cette ligne à propos de l'auteur?
Imports System.IO
Public Class Form1
' CSCI 6
' Alex Smutny
' Lab #3
'
' DATE: 3/1/2013
Dim SR As IO.StreamReader
' initial start spot for the record Count
Dim RecordCount As Integer = 0
Dim Author As String = File.ReadAllText("Authors.txt")
Private Sub btnQuit_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles quitBtn.Click
' Properly Exits the application.
Me.Close()
End Sub
Private Sub btnClose_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles closeBtn.Click
readBtn.Text = "Read"
SR.Close()
' Changes the button statuses Locked or unlocked and sets default settings.
openBtn.Enabled = True
quitBtn.Enabled = True
readBtn.Enabled = False
closeBtn.Enabled = False
SearBtn.Enabled = False
RecordCount = 0
recordNum.Clear()
bookNum.Clear()
isbnNum.Clear()
bookTitle.Clear()
authorName.Clear()
bookPrice.Clear()
bookQuanity.Clear()
reorderPoint.Clear()
End Sub
Private Sub btnOpen_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles openBtn.Click
' Sets the file to read from and opens it.
SR = IO.File.OpenText("Books.Txt")
' Changes the status of the buttons again now that the File is open and ready to read.
openBtn.Enabled = False
quitBtn.Enabled = False
readBtn.Enabled = True
closeBtn.Enabled = True
SearBtn.Enabled = True
End Sub
Private Sub btnRead_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles readBtn.Click
'Changes the Read button to say next because it makes more since.
readBtn.Text = "Next"
' Setting all the variables.
Dim srIndex1 As Integer = 18
Dim srTitle As Integer
Dim srAuthor As Integer
Dim srPrice As Integer
Dim srDPrice As Double
Dim srData As String
Dim srLength As Integer
If SR.Peek() = -1 Then
MessageBox.Show("End of file")
Else
' Starts to read
srData = SR.ReadLine
' Increment counter by 1.
RecordCount = RecordCount + 1
' Determine the record length.
srLength = srData.Length
' gets the book number
bookNum.Text = srData.Substring(0, 3)
' ISBN number
isbnNum.Text = srData.Substring(4, 13)
' Book title
For srTitle = 1 To srLength Step 1
If srData.Substring(srIndex1 + srTitle, 1) = "," Then
bookTitle.Text = srData.Substring(srIndex1, srTitle)
srIndex1 = srIndex1 + srTitle + 1
srTitle = srLength + 1
End If
Next
' Book Author
For srAuthor = 1 To srLength Step 1
If srData.Substring(srIndex1 + srAuthor, 1) = "," Then
authorName.Text = srData.Substring(srIndex1, srAuthor)
srIndex1 = srIndex1 + srAuthor + 1
srAuthor = srLength + 1
Author = authorName.Text
End If
Next
' Book Price
For srPrice = 1 To srLength Step 1
If srData.Substring(srIndex1 + srPrice, 1) = "," Then
srDPrice = CDbl(srData.Substring(srIndex1, srPrice))
bookPrice.Text = srDPrice.ToString("C")
srIndex1 = srIndex1 + srPrice + 1
srPrice = srLength + 1
End If
Next
' Quanity
bookQuanity.Text = srData.Substring(srIndex1, 2)
srIndex1 = srIndex1 + 3
' Reorder Point
reorderPoint.Text = srData.Substring(srIndex1, 2)
End If
' record count
recordNum.Text = RecordCount
End Sub
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
openBtn.Enabled = True
quitBtn.Enabled = True
readBtn.Enabled = False
closeBtn.Enabled = False
SearBtn.Enabled = False
End Sub
Private Sub SearBtn_Click(sender As System.Object, e As System.EventArgs) Handles SearBtn.Click
SR = IO.File.OpenText("Authors.Txt")
SR.Close()
readBtn.Text = "Restart"
RecordCount = 0
SR = IO.File.OpenText("Books.Txt")
End Sub
End Class
Auteurs fichier http://pastebin.com/t7C8ye9e Livres Fichier http://pastebin.com/y6DNyUFd
donc mon but est de simplement obtenir l'information pour l'auteur en cours et obtenir de l'autre fichier et supprimez tous les espaces de fin et affichez-le simplement comme une étiquette de publipostage.