i have data (CSV) that goes into an array. I then update the data but when it updates, it keeps blank elements of the array. Each time i update, the array doesnt replace my old data with the new data, it just seems to create a new element of the array. Then i get the incorrect count of entries.
Reads XML
For Each node As XmlNode In xnames
nvalues = node.InnerXml.Trim
Next
[code].....
i have an array contains a-z.Then i have a textbox and when click on the button, it will replace the text inside the textbox to the index number of the array.Example, from "abc" will become "0 1 2" The code below do the job.how to do so that i can replace the text inside the textbox from "0 1 2" back to "abc" based on the array?
Dim txtKey As String = readKeyTxt.Text
readKeyTxt.Text = ""
For Each b As String In txtKey[code].....
Replacing text in an array ?
View 1 Repliesi have an array that contains a-z.When i enter text like "ab" into a textbox and click the button, it will search the array and replace the text accordingly to the index number of the array and rewrite into the textbox with the index number.
But what i got from the code below is "ab0 1".May i know how to do so that the textbox will only display the index number and not with the letters. Also, how do i search the array from index 12 onwards to the end of the array.
For Each b As String In TextBox2.Text
If abc.Contains(b) Then
Dim ab As Integer = Array.IndexOf(abc, b)
[code]....
I have an array that hold 6 random number, then this numbers are sorted from smallest to highest. My question is: How would I go about replacing any repeating numbers with a different random number. I.e. 1 3 7 2 2 9 is sorted into 1 2 2 3 7 9, but I would like to see one of the 2's replaces with a different number (that it is not currently in the array).
I have no code for this part - but the code for making the random number, storing them and sorting them works fine.
i have a problem with the sales transaction. i need to show all the product purchase and i need to show it on the data grid but everytime i input a product it keeps on replacing the data i entered. need code for adding data in the rows of data grid.
View 1 Repliesim trying to replace data from listbox1.selecteditem to listbox2.selecteditem i have a temp.txt text file that loads in to listbox1 (rlines) this is the methord i use to load each file in to a list box...
Try
Dim file_name As String = tempdata()
Dim stream_reader As New IO.StreamReader(file_name)
Dim line As String
[code]....
it dose what it says and replaces that line of text from the data loading in to listbox2 with the data i selected in listboz1(rlines) but what im looking for is to have the data load in to listbox2 and then have a button so i can select a line in listbox1 and in listbox 2 and it will replace the line from listbox1 in to listbox2 now i can add a line in to listbox2 from listbox1 with
listbox2.iteams.add(listbox1.selecteditem)
but cant find a replace for it
I have my battle systems code set to (attempt) to replace the test enemies data with the data that I have saved into a text file every time you either kill the enemy, or you leave the battle and come back to it... or if youve run away from the enemy.ive got two functions in the battle page, one of which is an agressive attack, the other of which is the running away function, and both of them are supposed to run the function that resets and reloads the enemies data from a text file, yet none of them are doing what they are supposed to do...
the problem that I am having is that when I either run away, or I kill the enemy, its data is never reset to the baseline of 2000, it is always, in the case of running away, what it was when I ran away, or if I killed it, it is a random value less than 2000...
here is the respective code
agressive attack:
Private Sub CMDagressive_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles CMDagressive.Click
'Dim previousdamage As Integer
'Dim originaldamage As String
[code]....
I have a binary file. If I look at it with a hex editor, the first values are:208, 207, 17, 224, 161, 177, 26, 225, 0, 0, 0, ... etc.It has a length of 330240 bytes I have tried to open it and read it into a string so I can manipulate it and write it back. No matter what I use, I either don't get the correct number of bytes or the values in the string are incorrect. The most common error results in the first values being: 63, 63, 17, 63, 63, 26, 0, 0, 0 .... etc.It is interesting that it appears that any value > 63 becomes 63.
I get the 2nd values by a simple loop:
For lnx = 0 To 99
Debug.Write(Asc(line.Substring(lnx, 1)))
Next
I have tried a whole number of ways to read in the file, including filestream, My.Computer.FileSystem.ReadAllText, File.io.readAllLines, etc.All either give me a string length of about 324000 (not sure why) or, if they do, don't have the correct values. Yes, I have tried various encoding options.
I need to find a string (sort of like: "D" & Chr(0) + "L" & Chr(0) + "S" & Chr(0)... ) so I can then replace that portion of the string with a new value, then write out the file.I use the ".indexOf" to find the data in the string.Why can't I load the file into a string? Or, do you know of an easy way to find some text (similar to above) in a file and then replace the next x number of bytes with a new value and close the file?
I have an ArgumentException was unhandled message: Cannot add or insert the item '1' in more than one place. You must first remove it from its current location or close it. Parameter name item. Note: Have 2 listboxes 4 textboxes double click listbox2 and it fills in the four texboxes (now it needs to put it back into listbox2 in the same place it came from but crashes. I marked the area and underlined where the error message was coming up. So double click a selection in listview2 (fills 4 textboxes) then double click textbox2 (should return text data back to listview2 in same spot) but crashes. See code below.
[Code]...
txt1 = help and txt2 = me! txt3 = not here, when i enter the other box i want the okay to drop sign to come up, after drop txt1=me! and txt2 = help.if i drag to txt3 display the can't drop sign.Iv'e tried everything all i can do is replace one way.also,i want the can't drop and can drop simbols to show.so far
Public
Class Form1
Private
Sub tbMouseDown(ByVal
[code]....
I'm trying to sort an array based on a structure but whenever I do this, it basically erases all the data in the entire array.I have verified that the array is populated correctly, it is when using array.sort that everything returns blank.
View 6 RepliesI 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 RepliesHere's the data I'm trying to work with
Spark Plugs
column 1: PR214,PR223,PR224,PR246,PR247,PR248,PR324,PR326,PR444
Brands:
column 2: MR43T,R43,R43N,R46N,R46TS,R46TX,S46,SR46E,47L
column 3: RBL8,RJ6,RN4,RN8,RBL17Y,RBL12-6,J11,XEJ8,H12
column 4L 14K22,14K24,14K30,14K32,14K33,14K35,14K38,14K40,14K44
Here is what i came up with for my code so far
Public Class frmMain
Private strSpark() As String = {"PR214","PR223","PR224","PR246","PR247","PR248","PR324", "PR326","PR444"}
Private strBrands As String(,) = { { } }
End Class
how to parse SQL Text with VB.NET?
Ex: I got a sql file "CREATE TABLE..." i want to get an array of columns and an array of data types.
Ypos = TopMargin + Count * PrintFont.GetHeight(ev.Graphics)
ev.Graphics.DrawString(ROData(x, 3), PrintFont, Brushes.Black, LeftMargin, Ypos, New StringFormat())
Count = Count + CInt(ROData(x, 4))
The above line prints the data contents of the ROData array in position three. I would like to be able to assign a specific position accross the line to have the printer print the data at without left padding the array data.
I am trying to write a thread safe application that contains 3 threads : -
1 - Data acquisition and decoding
2- Data graphing
3 - FFT and filtering
Thread 1 is collecting bytes from the serial port and converting them int integers (so taking two bytes) after is has captured 64 Bytes and converted into 32 integers, it then needs to pass the array to the graphing thread.
The graphing thread then plots the data and waits for more data.
Thread 3 also waits until thread one has collected 2023 integers and takes these and performs some FFT calculations (which take time).
My question is how do i share the arrays between the three threads without deadlocking the program? as the serial thread will be flying around reasonable fast (1000 bytes per second) so it will synclock onto the shared buffers for most of the time.
Originally i was going to use two synchronised queues, so when thread 1 has collected 32 bytes it queues the data into the graph queue, and once it has collected 2023 it queues the data into the FFT queue.
Then thread 2 and 3 can simple dequeue the data.
However using queues has the overhead of casting the data in and out, and as i know the data type i was planning on using two arrays :-
Dim GraphArray() as ushort
Dim FFTArray() as ushort
Then Thread 1 adds data to each thread, and thread 2 and 3 simple wait until the correct amount of data is available before removing the data. my question is there an array type that allows me to remove x amount of data from an array?
Because i cannot do this easily with the ararys defined as above (GraphArray, FFTArray), as i was planning on making them 1mByte and allowing thread 1 to fill them Knowing they should never overflow and then let thread 2 and 3 remove x amout of bytes at a time unless there is a better way of doing it
Data binding should be an extremely simple thing to manage but I can't find a SIMPLE solution to the following problem.
I have two forms
Form1 contains a 4x4 MSFlexGrid (unfortunately an unmanaged COM object but I can merge cells, which I can't do with a managed Datagrid)
Form2 contains other controls which change the data in the Flexgrid.
I connect the two with a Public 4x4 array. Form2 changes the data in this array. I can update the grid data by reading the array. But how do I bind the Grid to the array so that it auto-updates - which is the whole point of binding isn't it?
In order to re-sort the data received in USB easier, I send the data array received in USB (declared as Byte) to a temporary array (declared as SByte) to re-sort. I declared the temporary array as SByte just for easy sorting. After I compiled, an error message came up "make sure not divided by zero". I tried to use convert.SByte but still didn't help. Is it not allowed to send data to an array with different data type declaration?
View 1 RepliesI have a code snippet that cleans a string of various characters. [Code]. Is there a better way to do it than this?
View 3 RepliesWhile my user is typing text into a textbox i want the characters " to be replaced with ' '. The thing is, when i put ' ' in the replace code, it thinks it is a comment so i cannot run the code without producing an error.Also in my multitext box, everytime i write text and hit ENTER, save and then load it back again, the last line ends with a comma, so:
Line 1
Line 2,
When the text is written to the file i read from, it will show like this:
"Line 1Line 2",
So i need a way of trimming ", when the apostrophe " and the comma , are together. My code already trims "".
I have dates like the following (note trailing 'T')
2011-11-07T15:24:28
2011-11-07T
With regex i need to extract just the date part so both will look like this
20111107
20111107
.net Have a webservice that is returning a date like 2011-11-07T15:24:28, but on some occasions it returns date with no time but still with the trailing T. This causes .net's cdate function to bail out.
In c programming language,
I can do
printf("%d
", value);
But in c#, how can I do it? For example string is "Good %s everybody"
I want to replace %s with the variable. Are there any solution except str.Replace("%s","good morning");
I have a datagridview which gets it's info from a datatable. Everytime I add a new record to the datatable, the datagridview replaces the first record with the new one, instead of adding the new row under the old row.
(Datatable is already declared.)
Private Sub btnWebSave_Click(sender As System.Object, e As System.EventArgs) Handles btnWebSave.Click
'first make sure all text boxes are full of data.
Dim ds As New DataSet
dt = New DataTable
[Code] .....
I have file paths such as:
' Any number of folders before and after the Project name
C:acdProject1efgsomefile.someextension'
How would I:Extract only the path before the project name?
C:acd
Extract the path after the project name?
efgsomefile.someextension
Note: Of course given the filename.Would Split be better or some complicated regex?
i have 2 groups of text in my text file
Bottom
11.0 28 Red (2 13.10 04.0) [1 16.71 33.3] 130611 2948 229111 28275
6.5 28 Blue (2 03.00 03.0) [1 05.36 58.3] 132111 -67725 191611 -51225
2.0 28 Blue (1 05.36 45.3) [1 05.36 58.3] 211111 51225 210454 34691
[Code].....
Items:
1 listbox
2 textboxes (1 textbox input, 1 textbox edit)
4 buttons (1 button add,1 button remove, 1 button edit, 1 button change)
Private Sub add_Click(sender As System.Object, e As System.EventArgs) Handles add.Click
ListBox1.Items.Clear()'clears the listbox1 before puting the input in
ListBox1.Items.Add(textbox1.text)'This adds what's in the textbox1
End sub
[code]....
this workes but if you test this, you will notice that if you edit the selected item and put it back in it's all the way down again and not at the position as it was.For example:
first item: apples
second item:flowers
third item: orange
so if you edit flowers to pears for example then, will appear below orange.i know i know that this is the issue:
ListBox1.Items.Remove(ListBox1.SelectedItem) 'Removes the item first
ListBox1.SelectedItem = ListBox1.Items.Add(TextBox2.Text)' Add the text thats in textbox2
How can I upload an image 1.png into the program and then once the program is opened, that image gets saved here:LibrariesDocumentsand if there is already a file called 1.png in that directory.
View 5 RepliesI am using the .Replace function of a string. My string is a module I have added for a resource which looks like this: My.Computer.Network.DownloadFile("This String Will Go Away/details.txt", "details.txt") And then in my application I have:
[Code]...
Is it possible to replace string characters using the delimiter and limit of a split function?
For example you have this string "1,1,1,1,1"
I wish to replace sentence number 2 into the string "2" between the "," character so that will be limit number 1.
So the result would be "1,2,1,1,1".
