I have two TextBoxes..
I want to extract/duplicate ALL CAPITAL LETTERS to be inputted by the user to another TextBox during an event of KeyPress.
Logic :
Private Sub TextBox1_KeyPress()
'If the Character is a Capital Letter Then
' Copy and Concatenate it to the second TextBox
'End If
End Sub
You can try this:
For i = 0 To TextBox1.Text.Length - 1
Dim c As Char = TextBox1.Text.Chars(i)
If Char.IsUpper(c) Then
TextBox2.AppendText(c)
End If
Next
If you need it as a function:
Private Function ExtractUppers(ByVal txt As TextBox) As String
Dim sExtract As String = ""
For i = 0 To txt.Text.Length - 1
Dim c As Char = txt.Text.Chars(i)
If Char.IsUpper(c) Then
sExtract = sExtract & c
End If
Next
Return sExtract
End Function
And in your button:
TextBox2.Text = ExtractUppers(TextBox1)
It was solved by my friend! :) Thanks for your replies!
Private Sub TextBox1_TextChange()
CapitalLetter = Regex.Replace(TextBox1.Text, "[^A-Z]", String.Empty)
TextBox2.Text = CapitalLetter
End Sub
Maybe you can use this trick:
If letterVar = letterVar.ToUpper() then
TextBox2.Text &= letterVar
End if
Related
I have a string filled with the contents of a textbox (pretty large).
I want to search through it and display all occurances of this word. In addition I need the searchresult to display some charachters in the string before and after the actual searchterm to get the context for the word.
The code below is part of a code that takes keywords from a listbox one by one using For Each. The code displays the first occurance of a word together with the characters in front and after the word - and stop there. It will also display "no Match for: searched word" if not found.
As stated in the subject of this question - I need it to search the whole string and display all matches for a particular word together with the surrounding characters.
Where = InStr(txtScrape.Text, Search)
If Where <> 0 Then
txtScrape.Focus()
txtScrape.SelectionStart = Where - 10
txtScrape.SelectionLength = Where + 50
Result = txtScrape.SelectedText
AllResults = AllResults + Result
Else
AllResults = AllResults + "No Match for: " & item
End If
I recommend that you can split the string into long sentences by special symbols, such as , : ? .
Split(Char[])
You can refer to the following code.
Public Class Form1
Private Sub Button1_Click(sender As Object, e As EventArgs) Handles Button1.Click
RichTextBox1.Text = ""
Dim Index As Integer
Dim longStr() As String
Dim str = TextBox3.Text
longStr = TextBox1.Text.Split(New Char() {CChar(":"), CChar(","), CChar("."), CChar("?"), CChar("!")})
Index = 0
For Each TheStr In longStr
If TheStr.Contains(str) Then
RichTextBox1.AppendText(longStr(Index) & vbCrLf)
End If
Index = Index + 1
Next
End Sub
Private Sub Form1_Load(sender As Object, e As EventArgs) Handles MyBase.Load
TextBox1.Text = "....."
End Sub
End Class
Result:
Try like this:
Dim ArrStr() As String
Dim Index As Integer
Dim TheStr As String
Dim MatchFound As Boolean
MatchFound = False
ArrStr = Split(txtScrape.text," ")
Index = 1
For Each TheStr In ArrStr
If TheStr = Search Then
Console.WriteLine(Index)
MatchFound = True
End If
Index = Index + 1
Next
Console.WriteLine(MatchFound)
Inside the If statement you will get the index there. And MatchFound is the Boolean value if match found.
I'm trying to make a hangman game and to input "incorrect" if the user picks the wrong letter but it will keep repeating because of the randomWord which chooses the word from an array how do I stop this?
Sub wordGeneration()
Dim wordUsed As Array = {"pizza", "noodle", "zombie", "object", "rowin", "running", "elephant", "lion"}
Dim random As New Random
randomWord = wordUsed(random.Next(0, 8))
Label2.Text = randomWord
End Sub
Sub letterInput()
For i As Integer = 0 To randomWord.Length - 1
If userInput = randomWord(i) Then
MessageBox.Show("correct")
ElseIf userInput <> randomWord(i) Then
MessageBox.Show("incorrect")
Label4.Text = counter
End If
Next
End Sub
Simpler and faster to let VB do the search for you.
Sub letterInput()
if InStr(randomWord.Length, userInput) > 0
MessageBox.Show("correct")
Else
MessageBox.Show("incorrect")
Label4.Text = counter
End If
End Sub
Note: I am assuming userInput is a single character.
I'm just a beginner for coding and I want to programmatically check items in checklistbox using datagridview.
Data grid view values are seperated with commas like this jhon,Metilda,saman,.
Checklistbox name as chklistinput and please help me to solve this ?
'Full coding is here..............................
Private Sub TextBox10_TextChanged(sender As Object, e As EventArgs) Handles TextBox10.TextChanged
'this is ok and searching as I want
Dim SearchV As String = TextBox10.Text
SearchV = "%" + TextBox10.Text + "%"
Me.PassIssuingRecordTableAdapter.FillBy(Me.Database4DataSet.PassIssuingRecord, SearchV)
'But the problem bigins here
Dim areasback As String = DataGridView1.Rows(0).Cells(6).Value.ToString
Dim areasback1 As String() = areasback.Split(",")
For Each x In areasback1
For i = 0 To areasback.Count - 1
If chklistInput.Items(i).ToString() = x.ToString() Then
chklistInput.SetItemChecked(i, False)
End If
Next
Next
End Sub
You have to loop over chklistInput.Items.Count - 1 instead of areasback.Count - 1
use the following code:
Dim areasback As String = DataGridView1.Rows(0).Cells(6).Value.ToString
Dim areasback1 As String() = areasback.Split(",")
Dim intCount as integer = 0
For each str as string in areasback1
For intCount = 0 To chklistInput.Items.Count - 1
If chklistInput.Items(intCount).ToString() = str Then
chklistInput.SetItemChecked(intCount , True)
End If
Next
Next
chklistInput.Refresh()
Note: comparing is case sensitive
I have a multi-line textbox with this appearance:
A#B
C#
D#E
and I want to populate my datagridview to something like this:
_________
|A|BC|D|E|
I mean, I want to split when there's a "#" , but I don't want multi-line cells in datagridview.
I tried this code:
Dim sup() As String = TextBox1.Text.Split(vbCr, vbLf, vbTab, " "c, "#")
DataGridView1.Rows.Add(sup(0), sup(1), sup(2),sup(3))
but it says it goes outta bounds ... Thanks!
edit:
"Index out of range exception" Error.
If i paste the textbox values to microsoft word they come like this:
If you are sure you will be splitting your textbox with 3 #'s, you could use something like this after creating 3 columns in your datagridview
Dim myStr As String
Dim substring As String
Dim strArray() As String
Dim columnInt as Integer = 0
myStr = Textbox1.Text
strArray = myStr.Split("#")
For i = 0 to strArray.Length - 1
Datagridview.Rows(0).Cells(columnInt).Value = strArray(i)
columnInt += 1
next
As I am not quite sure how you want this data to appear exactly, you may also need to declare the count of your columns should it be larger than 3. Add this code before the first For Statement:
For i = 0 to strArray.Length - 1
DataGridView.Columns.Add("YourText","YourText")
Next
Untested but it should get you in the right spot!
*Edit: Updated after testing
Private Sub Timer1_Tick(sender As Object, e As EventArgs) Handles Timer4.Tick
If DataGridView1.RowCount = 1 Then DataGridView1.Rows.Clear()
Call dgvstuff()
Timer1.Stop()
End Sub
Sub dgvstuff()
Dim sup2 = TextBox2.Text.Replace("#", "").Replace(">", " "c)
Dim sup() = sup2.Split(" "c, "#", vbCrLf, vbTab)
With DataGridView1
.Rows(0).Cells(0).Value = sup(1).ToString
.Rows(0).Cells(1).Value = sup(7).ToString
.Rows(0).Cells(3).Value = sup(4).ToString
End With
End Sub
I really don't know why but it works like this. Anyone knows a better/cleaner way? Tks
The program I'm working on has two different functions, one that calculates the number of syllables in a text file, and another that calculates the readability of the text file based on the formula
206.835-85.6*(Number of Syllables/Number of Words)-1.015*(Number of Words/Number of Sentences)
Here are the problems I'm having:
I'm supposed to display the contents of the text file in a multi-line text box.
I'm supposed to display the answer I get from the function indexCalculation in a label below the text box.
I'm having trouble calling the function to actually have the program calculate the answer to be displayed in the label.
Here is the code I have so far.
Option Strict On
Imports System.IO
Public Class Form1
Private Sub ExitToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles ExitToolStripMenuItem.Click
Me.Close()
End Sub
Private Sub OpenToolStripMenuItem_Click(sender As Object, e As EventArgs) Handles OpenToolStripMenuItem.Click
Dim open As New OpenFileDialog
open.Filter = "text files |project7.txt|All file |*.*"
open.InitialDirectory = Environment.GetFolderPath(Environment.SpecialFolder.DesktopDirectory)
If open.ShowDialog() = Windows.Forms.DialogResult.OK Then
Dim selectedFileName As String = System.IO.Path.GetFileName(open.FileName)
If selectedFileName.ToLower = "project7.txt" Then
Dim text As String = File.ReadAllText("Project7.txt")
Dim words = text.Split(" "c)
Dim wordCount As Integer = words.Length
Dim separators As Char() = {"."c, "!"c, "?"c, ":"c}
Dim sentences = text.Split(separators, StringSplitOptions.RemoveEmptyEntries)
Dim sentenceCount As Integer = sentences.Length
Dim vowelCount As Integer = 0
For Each word As String In words
vowelCount += CountSyllables(word)
Next
vowelCount = CountSyllables(text)
Label1.Show(indexCalculation(wordCount, sentenceCount, vowelCount))
Else
MessageBox.Show("You cannot use that file!")
End If
End If
End Sub
Function CountSyllables(word As String) As Integer
word = word.ToLower()
Dim dipthongs = {"oo", "ou", "ie", "oi", "ea", "ee", _
"eu", "ai", "ua", "ue", "au", "io"}
For Each dipthong In dipthongs
word = word.Replace(dipthong, dipthong(0))
Next
Dim vowels = "aeiou"
Dim vowelCount = 0
For Each c In word
If vowels.IndexOf(c) >= 0 Then vowelCount += 1
Next
If vowelCount = 0 Then
vowelCount = 1
End If
Return vowelCount
End Function
Function indexCalculation(ByRef wordCount As Integer, ByRef sentenceCount As Integer, ByRef vowelCount As Integer) As Integer
Dim answer As Integer = CInt(206.835 - 85.6 * (vowelCount / wordCount) - 1.015 * (wordCount / sentenceCount))
Return answer
End Function
End Class
Any suggestions would be greatly appreciated.
Here are my suggestions:
update your indexCalculation function to take in Integers, not strings. that way you don't have to convert them to numbers.
remove all of your extra variables you are not using. this will clean things up a bit.
remove your streamreader. it appears you are reading the text via File.ReadAllText
Label1.Show(answer) should be changed to Label1.Show(indexCalculation(wordCount,sentenceCount,vowelCount)) -- unless Label1 is something other than a regular label, use Label1.Text = indexCalculation(wordCount,sentenceCount,vowelCount))
Then for the vowelCount, you need to do the following:
Dim vowelCount as Integer = 0
For Each word as String in words
vowelCount += CountSyllables(word)
Next
Also, add the logic to the CountSyllables function to make it 1 if 0. If you don't want to include the last character in your vowel counting, then use a for loop instead of a for each loop and stop 1 character short.