What i am doing is inserting the first element in array3 into the first index of array4
then im checking second index of array3 and if this is the same as the 1st array then dont insert into array4 as this will be a duplicate.[code]...
I have a class file which contains a structure like this.
<StructLayout(LayoutKind.Explicit)> _
Public Structure SampleStructure
<FieldOffset(0)> Public field1 As Int16
[Code]......
I have a structure which includes this...
Structure MasterStruct
<VBFixedArray(98)>
End Structure
When I create the code to initialize the Sections array like this...
Dim MasterX as MasterStruct
Dim Temp as Integer
For Temp = 0 To 98
MasterX.Sections(Temp) = 0
Next
VS 2008 tells me that MasterX.Sections "is not an array or method, and cannot have an argument list."
[code]Is there any other solution by which we can initialise the array members using new?
View 5 RepliesI am trying to write a program that will use a Structure with <VBFixedString(4), VBFixedArray(10)> Public Test1() As String. Back in vb6 it was in the Type statement as Test1(10) as string *4 When I hit the line ".Test1(X) = TB1" i get the following error:
Object reference not set to an instance of an object.
[Code]...
I am trying to create and initialize an array of structures of a fixed size. Each struct will be populated when a button is clicked. Here is an example of my struct:
public structure buttonStruct
dim x() as Boolean
dim y() as Boolean
[code]....
In my form_load function I am declaring the array of structs and:
Dim BtnStruct(15) As ButtonStruct
BtnStruct(0).Initialize()
[code]....
Whenever a specific button is clicked, I am trying to collect data and store it in the respective struct and so for example, if button 1 is clicked then I will store the data associated with button 1 into BtnStruct(0). The position of the button is stored in a public variable called BtnNum. If I attempt to store information in the struct inside another function as follows, I receive an error
BtnStruct(BtnNum).x(pos - 1) = temp "btnstruct is not declared. it may not be inaccessible due to its protection level"
The file structure is fine for retrieving data from the file but when I go to write data to the elements and hit any of the fixed array elements, I get an exception error. this has got to be a sytax problem I am just not seeing.
It seems that I am not addressing the array member correctly yet the same logic pulls it properly from existing records on file.
in a Module I have the structure as follows:
Structure INVOICE
<VBFixedString(6)> Public NUM As String
<VBFixedString(2)> Public SYMBOL As String
[Code]....
How can i remove an array item by selecting an item from listobx and press remove/delete button?for an example, if i want remove index 2 from listbox, so the array should remove index 2 item and move the item of index 3 to index 2 and so on.
View 7 RepliesI have a long string like this
dim LongString as String = "123abc456def789ghi"
And I want to split it into a string array. Each element of the array should be in 3 characters length[code]...
What values do I use for a Legal sized bondpaper? PrintDocument1.DefaultPageSettings.PaperSize
View 4 RepliesSeveral years ago I developed a VB.Net 2003 WinForm application using SQL and the DataGrid control. The Datagrid is bound to a SQL dataset in the form load event. Everything work fine.
With the form opened, the user has the ability to size the datagrid control's column width and row height. I want to be able to capture the new row height as sized by the use?
I have a situation where I have several listbox controls on the same asp.net page. They are currently autosized to keep data from truncating. However, I would like to be able to determine the width of the largest listbox and then alter the size of the other listboxes to be the same.
How can I access the size of the listboxes?
I have a request for a util to create a binary file of finite size. For example, the user might want to create a 10KB or 1GB or 400GB file for testing network transfers. I would also like the ability to create multiple files, for example, create 10x 10KB or 5x 1GB or 2x 400GB (so my user would enter qty=5 and size=1GB and have 5x 1GB files in a specific folder).
[code]...
I'm looking to return a thumbnail image from a full size image stored as varbinary(max) in the database. I'll be using the thumbnails in a gallery-style view, so small size / efficient loading is crucial. I've been using an .ashx to return the full size image into a bound asp.net Image control, with the following code:
Sub ProcessRequest(ByVal context As HttpContext) Implements IHttpHandler.ProcessRequest
Dim conn As New SqlConnection()
[Code]....
I realize it's probably best to address the re-size at the upload, and stored the smaller image as a discrete column. But in the meantime, is it possible to program the handler to re-size the image on the fly? Ideally, I'd be able to pass an additional query string parameter, something like isResized from the image binding, allowing the same handler to be used for both full size and re-sized images.
I am working on a personal vb.net project that will allow me to capture a full-sized image of a given web page. I've been working on this for a few of days and have not found a method that is 100% reliable. Here's what i have tried so far...
METHOD #1 - Using WebBrowser Control and CopyFromScreen
Problem: Fails to capture the entire content of the page if part of it is off screen, obscured, or requires scrolling.
[code].....
I am new to WPF but what i am trying to to do is i have a parentGrid with 3 rows, the first two are a menu strip and a toolbar, the third row is a child grid that is populated with the choices that are selected from the tool bar. the problem is that i want the forms that load in the child grid to not have their height surpass what i have set that row equal to in the parentGrid.[code]
View 6 RepliesI dont know if this has been answered but what i am trying to to do is i have a parentGrid with 3 rows, the first two are a menu strip and a toolbar, the third row is a child grid that is populated with the choices that are selected from the tool bar. the problem is that i want the forms that load in the child grid to not have their height surpass what i have set that row equal to in the parentGrid.is there an effective way to do this?
here is basically what i have for code
<Grid x:Name="ParentGrid" Margin="0" >
<Grid.RowDefinitions>
[code]....
How could one create a form that would give a handle to direct the mouse at that when the mouse clicked would result in focus of external process form directly bollow layer thereby giving focus to text box on said form?
View 11 RepliesI have short code like this :
Dim arr1 As New List(Of Integer)
For i As Integer = 1 To 100
arr1.Add(i)
[Code]....
My problem is : after RemoveAt command is value of array 2 is change this is true, but why it effect to array 1 , i don't want array 1 value change
I have an array of X elements, and let's say X = 50. How do I remove every 5th element of the array? Thus, the end result should be an array of only 40 elements left, since every 5th element was taken out....
View 1 RepliesIn vb.net how do you delete a row in a two dimensional array?
View 2 RepliesI'm loading a file into an ArrayList, then looping through the ArrayList and each time adding a DataRow to a Datatable, then using the Datatable as the DataSource for a GridView. My problem though is that the file has one field at the end that I don't want to display. I'm not sure though how to not to add it as a DataRow or what to do so that it won't be displayed. Do you know what I might do. This is my
' Declare and setup a StreamReader object to read the file
Dim objStreamReader As New StreamReader(fname)
Dim arrText As New ArrayList
[Code]....
[Code]...
I build up the ItemList array with the above code. How do i remove any duplicates in this array?
How to remove the last element from an array in VB.NET. I need to split the street and housenumber.STREET Split the address on spaces Remove last element (missing in the code)Join array Split the address on spaces get last element
My code:
'split address
Dim addressArray() As String = args.Content.Split(" ")
'remove last element and return the joined array
Return String.Join(" ", addressArray.Remove(addressArray.Length() - 1))
I have previously used the arguments of a contentsResized event on a Winforms richtextbox to get the new size of my RTB. I am now developing a WinForms app with a custom WPF RichTextBox. My whole reason for doing this is to use the out-of-the-box spellchecker. I need my RichTextBox to expand and collapse vertically as the text is changed. The elementhost will also have to resize to allow the whole RTB to display on-screen.
View 1 RepliesI've come unstuck on a certain point. I am trying to find a way to compare two lists and output only lines which are unique. In other words, remove both occurrences of duplicate lines.I'm relatively inexperienced with VB.NET, but this is how far I have managed to come;
Code:
Public Class Form1
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim LinksList1, LinksList2 As String
LinksList1 = Replace(RichTextBox1.Text, "#vch", "") : LinksList2 = Replace(RichTextBox2.Text, "#vch", "")
[code]....
1) search the array to find duplicates and add them to a second array, then have a second pass to remove anything which matches the second array.
2) search the array for one duplicate and store it, then search the array again to remove the duplicates, and run that process until there are no more duplicates.
Then again, I could be going about this completely the wrong way. If that's the case, feel free to knock some sense into me.
how is the best to store cards? I tried to use array, but I couldnt find simple function to remove one element from array (like in PHP unset() ),
View 1 RepliesHow do I remove an item from an array at a specified index? This code copy's the index and then adds the indexes until it gets to the one you want to remove, skip it, and try to continue. But I get so many errors. From being out of the bounds of the array, to just being null for some odd reason. [Code]
View 5 RepliesI have a string defined:Dim sir() as String ={"Et1","t1-t2","t2-t3","Et2","Et3","Et4"...."Et15"}I want to make a new array of string that eliminates the items on index 0(Et1) ,3(et2) and 4(Et3)[code]The problem is that it wont replace with blank more than 4elements and I want to replace with blank Et1 until Et15.Until et4 I have no errors. When I introduce Et5 I have this error:[code]
View 3 RepliesIf i can just give a quick in site to what i am trying to do. URL [URL] Remove char and onwards? [URL]
That may not of explained it all so i will show you my previous working example using string builder on a single instance.
Private Sub ConVertURL()
' Strip URL text to generate correct download link
_sb.Append(_rtnSourceCode_LinkHolder)
[Code].....