How to take Textbox.text string and store in 2D array..I have total of three textbox..Number one textbox takes name and Second textbox takes grades and stores in third textbox,
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i know that integer is a variable to store whole numbers and that a string is a varialbe used to store any text, but what variable type would you use to store a number that has decimals?
View 7 RepliesI have a datagridview on my form named DG1 I fill the datagridview cells, now I want to store the content of the datagrdview into a string array.
Dim output As String()
Dim i As Integer = 0
For Each row As DataGridViewRow In DG1.Rows
[code]....
it is giving me a NulReferenceException at: output(i) = cell.Valuehow to store my datagridview content into a string array?
I have a string array called m_DirFileList and a collection called myFileCollection. I'm trying to loop through the items in the collection and store each one in the string array. It's not working though.
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I'm trying to do something quite simple. I need to take a pipe-delimited text file and store the contents of the file in an array.
View 2 RepliesI am unable to read from the text file in VB. I want to read the contents for text file and store them in array. See my code below and the text file. How should I read this text file.
'Purpose : This program will read student name & final marks for a set of students from the text file and then calculate & display class average, class standard deviation, number of students above class average, name of student with highest mark, number of students with A's(90-100), B's (80 < 90), C's (65 < 80), D's (50 - < 65) and F's (<50).Calculate for standard deviation of a set of numbers:Step1. :Find the average Step2. : Square the difference between each number and the average
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I want to find out how I can store text from a textbox, close the form and next time when I start it again, I want to load the text into the textbox that was previous entered. I have created a new application setting thing as a string. then in the textbox1_textchanged event I wrote
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I'm trying to build something called a structure which will store data it retrieves from a text file. I have the structure set up like this:
Structure Employee
Dim FirstName As String
Dim LastName As String
Dim ID As String
Dim Hours As Integer
Dim Wage As Decimal
Dim EarnedPay As Decimal
End Structure
[Code] .....
How to set these operations up?
I have to text file in the following format :
Word[tab][tab]Word[Carriage Return]
Word[tab][tab]Word[Carriage Return]
Word[tab][tab]Word[Carriage Return]
I want to get all the words before the tab into one array or to create a new text file and the all the words after the tab into another array or create a new text file too.
Here my function to get the words before tab into an array :
Protected Sub MakeWordListBeforeTab()
Dim filename As String = "D:lao�0001.txt"
'read from file'
[Code].....
I wrote the above function to get all words before tab but I got all the words into array. I've been trying to use the Split method above. What is another method to split those words ?
I know this can be done with regular expression but I don't know regex yet. If you can show me how to get this done with regex it'll be awesome.
Is there a class or something I can add to be able to read an email?I really want to be able to make a real email client (like outlook).Is it possible with vb.net?
View 1 RepliesI am trying to create the following program Store in a 1d array a set of 5 place names and in a 2d array the distances between the places. Ensure that the order of the places is the same in both arrays. When the names are places are input the distance between them is displayed. If they are not both in the table a suitable message is displayed
Dim town(1 To 5) As String
Dim Dist(1 To 5, 1 To 5) As Integer
Dim First As Integer
[CODE]......................
I think the best way forward is pass a parameter to the function findnumber.
I'm creating a program which you can fill in a number of boxes and then send it as an email. I would like to know if there is a way to create some form of array out of all my textboxes so that i can save time on the email.For example,
For i = 1
EmailCont = TextBox(i).Text
Next
how to get string array from TextBoxexample: textbox1 = "Name"
a(1)=N
a(2)=a
a(3)=m
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I want to take a string from a text box and split each letter of the string into an array. Then, I want to take the first item in the array(the first letter of the string)and capitalize it. Once I've done all that, I want to combine the array and convert it back to the original string it was, except I want the first letter to be capitalized(I've already placed this into a variable.)
Here's what I've come up with so far:
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how to combine the array back to a string except I replace the first letter of the original string with the "firstLetter" variable I created.
For a To-do list program, I am trying to use something like this to get the textbox (txtlast) to show the string held in the array, but the text box just keeps coming up blank..... why is this?
txtLast.Text = Arrnumbervalue(IntYear, IntMonth, IntDay, IntHour)
I am currently working and a vb. net project and would like to know how I can save the contents that I enter into a texbox on my form into an array which I defined in a class. Class:
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Dim dt As DataTable = MyClass.DatabaseRecordsetCall()
Dim str(dt.Rows.Count) As String
If dt IsNot Nothing AndAlso dt.Rows.Count > 0 Then For Each row As DataRow In dt.Rows
str.SetValue(row.Item(0).ToString, dt.Rows.IndexOf(row))
Next
End If
This is the code I am using to populate a string array to use as an autocomplete source for a textbox.The datatable has 17 rows in it. However, it creates the string array with a length of 18.Just an FYI, if you try to use an autocomplete source that contains a value = nothing, it will cause your application to crash.No, not cause an exception which could be dealt with, but a solid inexplicable, pull your hair out, scream and curse because you cannot figure it out crash. The microsoft message that comes up references the file browseui.dll.The above code as is, will generate an extra array value whose value WILL equal nothing and cause this crash to happen.
I want to reading in a excel file and extract the sCodenumber sDescription ans the sStatus and store them in a array : StatusComposeArray(5200) As MyCompose. After this I need this array for comparing outside this class. But as can you see the array is defined inside the sub: ReadingIn_ExcelFilesCompose [Code]
View 2 RepliesI am trying to bind a textbox to a binding source (using the IDE DataBindings Editor) and it works fine except for one thing: if I delete the text I get the subject error. What I want to happen is the datarecord field be updated to a dbnull value -- how do I get that to happen?
View 4 RepliesI have text in a textbox and I want to convert it to an array. If I declare the variable as an array, I get an error saying you can't do that. If I don't declare it as an array, I get an outside range exception. Is there any way around this limitation?
View 15 RepliesI am working on a 1st grade math program for schools in the Dominican Republic. What I am ttrying to do is have an array of farm animals. The question on the form is "How many letters are in the word " ". The " " is a textbox. All this will start when the click on a picture of a clock. A timer will also start, but I have that part done.
View 1 RepliesIm writing a program where im trying to split some text imported from a textfile into a textbox into an array.The array is undefined and i would like each piece of text to be an element in the array. I would then like to sort this information into alphabetical order.This is the code I have at present; I apologise if any appears to be out of sequence or whatever, VB is a rather puzzling language to myself!
PS i have the code behind a button as you can tell from the code.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
Dim textInput As String
textInput = TextBox1.Text
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I have an array of textboxes. Lets say this one:[code]What i want to do is set the .Text property for each of the textboxes of the array.I have tried this: [code]
View 1 Replies[Code] This is the coding i have used to a datagrid with textbox and combobox column. But for the first column i have to generate a unique name for each item and display in the first column of the data grid. I used array of string and tried to add that array value to the first column. But it is showing the error " Object reference not set to an instance of an object". how to add the unique name column to my datagrid.
View 4 RepliesI am shoestringing my app together at the moment so miss some fundemental basics.I just want to add text to the end of a string within a textbox like so:The process
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I know it is something like textbox.1.text = &_ "Fp1" ??
What I'm trying to do is get text from a control that hasn't been created yet. Once this control is created I want the program to query whats in the textbox by string, and then display this text in a message box. I've tried it a few different ways, none of which have worked. Heres some code that may give you an idea of what I'm trying to do.
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
For Each Textbox In Me.Controls
If Textbox.Name = "nb0" Then
MsgBox(Me.Newbox.Name("nb0"))
End If
I've also tried using Messagebox.show and a few various ways of trying to declare nb0 without actually declaring it. Is it possible to show text in a textbox by string?
I noticed something strange when automating websites: AxWebBrowser1.Navigate("[URL]")
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See asteriks ***below for the problems: There is text in CStr(rdrPlayers("PlayerName")) and the textbox for loop is 15 so why the extra textbox's 6 thru 15 (1 to 15 then 6 - 15 under them 6 is visable others are out of panel display I shortened my code below
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How can I write and read a string array to a text file?
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What am I doing wrong or do I use a incorrect way to extract text from an array? Using += takes up a lot of computing power when it reaches like 50000 characters so I want a method with much better performance
