What Does : Dim Array() as String means and what Dim Array as String() Means?If I pass a array to function like below:Public Sub Array_AddSomething(ByVal strEntry As Object, ByRef strArray() As Object)
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my code is :
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The error is Value of type '1-dimensional array of string' cannot be converted to 'String'.
i am still new in VB.net if someon can just help with these codes below: [code] what does the () after each one of these declaration means are they arrays?!
View 2 RepliesWhat exactly does the "calling code" means? A method to do an action?or else.,
View 6 RepliesI have been given the following code that I want to change to VB however I dont understand the first line of every property:
1<ConfigurationProperty("mailSubject", DefaultValue:="Mail from TheBeerHouse: {0}")> _
2 Public Property MailSubject() As String
3Get
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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].....
I think I've misused this method and would like to know what it actually does.I 've looked it up on msdn forum and found this
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What does it mean by removing all the rows in all tables? Is it the datagridview table? When it says "removing", does it mean that it deletes everything?
The reason I misused it is because I thought dataset.clear means it flushes the record held in dataset.
When I click on the add new icon on bindingnavigator, a new form will appear, which allows me to insert data
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when I close the insert form, the parent form will be activated and datagridview will display the new record I just inserted. I thought the dataset.clear method helped display the new added record but then I realised I could do without the dataset.clear method.
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Me.datagridview.InvokeRequired property means in vb.netadil
View 3 RepliesI saw something really strange today, that I have not seen before.I saw a variable declared as:Dim a as Long? I am obviously familiar with the Long datatype but what is Long?
View 4 RepliesI need to append STRINg to Array and cast it 1-dimensionalArray
Dim remoteFileNames(0)
As
String
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Here "FtpRemoteDirectory" is a string and ftpFileNames() is the Array String which list the FileNames.
and remoteFileNames is 1-dimension array
I am writing an OPC Client in VB.NET (2008) and I am using an OPC wrapper from Graybox. I am having some problems with the data types. I have an Array of String that contains all of the OPC Items that I wish to read from the OPC Server. When I attempt to use the Array of String, Option Strict causes the following compile error message:Error 5 Option Strict On disallows narrowing from type 'System.Array' to type '1-dimensional array of String' in copying the value of 'ByRef' parameter 'ItemIDs' back to the matching argument. How do I pass the Item ID's (all strings) in an array?
View 1 RepliesI'm having problems with marshaling in VB.NET to C++, here's the code :
In the C++ DLL :
struct APP_PARAM
{
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how do i delete a certain row by either double clicking it or by means of another form.
View 2 RepliesI've got a piece of code of a class. When initialised a new object is made on a picturebox. But what I don't know is how does the program know that the public property x and y means the coordinates of the object?
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i want to make a facebook application for messages purposes means from that app i want to send and receive messages only?
View 11 RepliesIs it possible to trigger event whenever seconds on stopwatch change (that means every second, but it has to be synchronized with seconds)?
View 6 RepliesPrivate Sub TextBox4_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles TextBox4.KeyPress
If (e.KeyChar < "A" OrElse e.KeyChar > "Z") Then
e.Handled = True
End If
End Sub
If e.Handled = True means we can enter a to z and A to Z in textbox.If e.Handled = False then what it means??
I have an array defined As string and the value stored in site is like "7E", "A1" and so on. But in order to send out this array through serial port. I need to change the the array to As Byte instead of using As String. How can I convert it?
View 8 RepliesI've been working with a sig capture application sample on a windows mobile device, The data is sent via IP to a host as a byte array and is then drawn onto the screen of the host as it appeared on the client. I was able to get this into the form of a bitmap object so I could print it or save to a jpg file. That all works well. The problem now is that I need to store this data in a database and then be able to recall it at a later time and recreate the signature image.
The byte array data is much smaller than the actual image so I would like to store it in that form. My issue is that when I convert this byte array into a string and back again my program can no longer re-create the image. Once I saw the problem I created the code below as a test and added the msgboxes to get an idea what was happened to my data.
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i have 2 string arrays and I want to merge them together then put the elements into a third string array ..
for an example :
string1="a","b","c"
string2="d","e","f"
after merging:
string3="a","b","c","d","e","f"
Im working on a program and I get this "Value of type '1-dimensional array of String' cannot be converted to 'String'." heres the code that gets this error:
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I don't understand why the line final.join etc pops up with these errors!! Value of type 'String' cannot be converted to '1-dimensional array of String' And Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated This is my code.
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I want the Function to accept List(Of String), Array & String and similarly return List(Of String), Array & String respectively. The Function simply adds a string (month) to the input collection. I just want to use it for string, array and list with needing to think of conversions.
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If I increase the capacity of a given list, or add elements until count>capacity, does this mean the program is actually copying the entire list's contents to a new space in memory (similar to redim preserve with arrays)? If so, than I have really been hurting the performance of my lists, as before I was inserting and adding without a second thought. This seems a strong restriction on the dynamic abilities of lists.
View 2 RepliesWhat this line means? Inherits System.Windows.Forms.Form
View 3 RepliesI need to do this to every line in a file and save the # five Element in an array. I keep getting (error code 1 Value of type '1-dimensional array of String' cannot be converted to 'String'.)
NOTE: if I change ( Dim Lineoftext(1) to Dim Lineoftextt works) (It does't seem to work with arrays)
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
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I am trying to the copy the value from string to char array using String.CopyTo() method.
Here's my code
Dim strString As String = "Hello World!"
Dim strCopy(12) As Char
strString.CopyTo(0, strCopy, 0, 12)
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Edit : I get the this error at runtime.ArgumentOutOfRangeException Index and count must refer to a location within the string. Parameter name: sourceIndex
Try
Dim authTicket As FormsAuthenticationTicket = _
FormsAuthentication.Decrypt(authCookie.Value)
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Error1Value of type 'String' cannot be converted to '1-dimensional array of String'.C:xxx
Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click Roles.AddUsersToRole(DropDownList1.SelectedValue, DropDownList2.SelectedValue) Label1.Text = DropDownList1.SelectedValue + "Was Add to the" + DropDownList2.SelectedValue + "Role"
View 2 RepliesI'm making a card game and the first thing I'm doing for it is generating a random card. I used an array for the cards (can't think of a better way to assign a picturebox to a card picture other then a huge select case block). I'm trying to split the 2D array into two parts but it doesn't work.
My current
vb
Public Class frmMain
Private Function Flop() 'First three common cards to be displayed.
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I looked around online and I don't think a list will work for my 2-dimensional array.