I 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've a treeview in my project form which look like this.
-Cover Page
-Video1
-Podcast1[code].....
The user will be able to upload their pages to the respective pages nodes and I am suppose to make it in such a way that after the user uploaded the cover page which is showing at the PictureBox1 which I've use to display the image, and when he uploads the second page image at the PictureBox1, the Cover page image that he uploaded earlier on will not be overwrite.
I was told to create class and use array to store the contain in the respective nodes but I do not have any idea how to do it.
How do you copy a bi dimensional array in a clipboard without converting the content in a string builder?
View 6 RepliesHow 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,
View 8 RepliesI 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.
[code]...
I 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 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 Replies how to get an array of string from certain datagridviewcolumn,i try using this code,it doesn't work..
For Each row As DataGridViewRow In dgvPaketRow.Rows
If Not row.IsNewRow Then
Dim str() As String = New String() {row.Cells(0).Value}
Dim strRes = String.Join(", ", modCommon.str)
msgbox(strRes)
End If
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 Repliesprovide a simple example code for displaying a string array of (9x13) values in a datagridview control. I am lost in the complexity of data binding and datagridview controls. I am an experienced VB6 programmer and cannot seem to grasp the transition from flexgrid control to datagridview control.
View 6 RepliesI have a string which is xml data which is very nicely indented and well formed. Dim xmlstring as string I am trying to pass the above mentioned string to a Java Web Service but the input parameter datatype is string array. I am converting the string to string array as shown below localws.receiveNotification("TestQueue", xmlstring.ToString().Split(CChar("")))
As the datatype for the input parameter in the above webservice is string() array for some reason my XML data is getting messed up and lot of elements are breaking and appearing in two lines and my xml data is no more well formed.
What I need is to take numbers from several textboxes (4 rows, 5 columns) and put them into an array. I was able to successfully do this with the string data, but there were only 5 items, and I'm not quite sure I did that right although it works. I've seen in the book how to get data from input boxes and listboxes but not textboxes. BTW-I've included my code, but this is only from one of the forms for this project.
Public Class StudentData
Private Sub btnOk_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnOk.Click
[Code]....
I have a form that I want to add the content of the datagridview to a listbox every time I double clik on the cell of the datagridview, then store the contents of the listbox in my database.
View 1 Replieshow to print a content datagridview ?
View 3 RepliesI'm program to handle ftp multiple file transfers. What I had in mind was to create an array for each type of file I need to process. There are 8 file types each needs to be transferred to a unique host.
' Each array contains in order: FILENAME|SOURCE PATH|DESTINATION PATH|HOST|USERNAME|PASSWORD
Dim arrA() As String = {"*a*.dat", "/destpath1/", "host1", "id", "pass"}
[Code].....
Im trying to query a game server, and have been looking up what to send and so on...This is what they say:Quote:Request formatServer info can be requested by sending the following byte values in a UDP packet to the server.
FF FF FF FF 54 53 6F 75 72 63 65 20 45 6E 67 69 TSource Engi
6E 65 20 51 75 65 72 79 00 ne Query
[code].....
I am coding a program that will allow the user to input 5 payrolls for Store 1, Store 2, and Store 3. The total of the 5 payrolls are then added together and shown in the respective Store's labels. A total label is also there to add up all the totals into one number. The numbers in the label must be in currency form. My problem is the numbers don't add correctly when I hit calculate. The first two numbers add together, but then after that the number just seems to subtract a random amount.
So far I have this --
Public Class Form1
Private Sub Button2_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button2.Click
Me.Close()
End Sub
[CODE[...
I want to store value in array, from my database. I am using following code but it return error: "Object reference not set to an instance of an object."[code...]
View 2 RepliesI have a custom datagridview control. I am loading data into it row by row. The control does not resize its cell width to its content. It only does so if I set autosize column property to Fill or AllCells. The problem is I can not use autosize because its killing my performance as I am loading large amount of data into the grid.
The cell does not display the contents completely, it just clips it. e.g for "sampletext" it would display "Samplet..." .
I want the cell to be resized according to the cell that contains the longest string value.
I'm having trouble getting a datagridview to update into an access db.Here's the code, from what testing I have done it is telling me that there are no rows in the datagridview (datagridview1.rowcount returns 0) when I can visibly see that there are many rows:
[Code]...
I'm having a hard time learning picture box.I can't figure out how to store a picture in an array.when i press the button the Picture Box1 generates 1 picture out of 5 pictures.[code]
View 8 RepliesI want to store a regular array in My.Settings. Not an ArrayList, not a StringCollection, just a string Array. Can this be done? If so, how is it done? I can't seem to find the string array datatype in the settings designer in Visual Studio.
View 3 RepliesI would want to store a datagrid row in a array.Every column value in a diffrent "part of the array".Like
Array(0) = column index 0
Array(1) = column index 1
But just from one row and the same row!
I have a table in an access database than manages user subscriptions. A user can have many subscriptions which is where im having trouble in terms of code.What i aim to do is store all the courses in an array of strings but i don't know how to do it.[code]The above code would be the command that i'd use to select the courses that the user has but i need to know how i would store the results in a array.
View 2 Repliesfirst i need to input the expression in textbox that will be store to CharArray and then substitute the variables to integer by using input boxes.. my problem is how can store the integer to an array and also store the operation..
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim arr() As Char = TextBox1.Text.ToCharArray
[Code]....
Problem storing value in array from database
View 3 RepliesI am trying to create a "Generate Number" application. It needs to generate numbers ( 1 - 100 ) and add them to the array. I have the numbers generated already and outputed into a list box. but I am not sure on how to add them to the array.
I have generated the numbers using for...next and do while loops. But I haven't been able to get the right syntax to be able to add the numbers into the array. [code]/...
Private Sub dgvTransactions_CellContentClick(sender As Object, e As System.Windows.Forms.DataGridViewCellEventArgs) Handles dgvTransactions.CellContentClick
If e.ColumnIndex = 0 Then
[code]....
How to save DataGridView content into a database?
View 10 RepliesI have a datagridview on my Form1. Im populating the datagridview with rows from an SQL database, however I need to automatically resize form1 so that its wrapped around the content of datagridview..
View 4 Replies