Erase And Ubound In Net?
Dec 18, 2009I have some problems. I wantd to convert come vb codes into vb net.
1. I have this VB 6 code:
Public Type ddt
x As String
End Type
I have convertid it in this way:
Public Structure ddt
[Code]...
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New Ubound Set, Will Everything After Ubound Be Removed?
Jan 19, 2011Here is a bit of code I found. It was said to remove a specific value in the array. However, it looks to me like it's setting a new ubound(end to array?), wont everything behind the new ubound be removed too?
Code:MyArray(ItemToBeDeleted) =MyArray(Ubound(MyArray))
RedimPreserve MyArray(Ubound(MyArray)-1)
Edit:Or is it just moving the value to the end and then just -1 from the end to remove it?
Get The Ubound Of An Array?
May 18, 2011I've got this 3 piece of code:
For x = 0 To sections.Length - 1
'work
Next
[Code].....
I've been thinking for about 10 minutes but I still can't decide what exactly are the advantages of 1 choice over the other.
I was wondering if anyone has actually given this some thought and would like to share their insights. Basically I would like to know which is "better" (you can quote clarity, easy refactoring, performance, maintainability, good standard, anything that makes it "better")
Why One Over Another: UBound Or Length
Sep 1, 2011Could there be any specific reason why one can choose UBound over Length? Here is the code and 1-dimension is passed as second parameter.
[Code]...
Return Decimal Number By Using UBound?
May 6, 2011want to return decimal number but because of "UBound" its keep displaying as integer how can i display decimal numbers?Public Class frmPrintbooks
Private Sub frmPrintbooks_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
For x = 0.0 To UBound(Form1.printBookName)
lstPrintbooks.Items.Add(Form1.printBookName(x) & " " & String.Format("{0:C}", Form1.printBookPrice(x)))
Next x
End Sub
[Code]...
Use Of Mid(), Instr(), LBound(), UBound() Not Recommended?
Sep 28, 2009I come from a C# background but am now working mostly with VB.Net. It seems to me that the above functions (and others - eg. UCase, LCase) etc. are carryovers from VB6 and before. Is the use of these functions frowned upon in VB.Net, or does it purely come down to personal preference?
View 4 RepliesUser Control Ubound For An Array?
May 23, 2012bound user control to create an array. in VB6 I have this code which is working fine:
For j = 1 To 10
Load iProject(iProject.UBound + 1)
Next
How to make this work in VB.NET 2010?
MS ACCESS - Putting A Query Result Into An Ubound Textbox Control?
Jun 26, 2009I am working on a custom report in access and I do have a query which I want the outcome to appear in a text box control. Howver when I link this under the control source property, It returns an error.
View 1 RepliesErase A Graphic That Was Created?
Jul 23, 2011i would like to be able to erase a graphic that was created.I would like to not have to redraw the graphics minus the graphic thats unwanted.Is there a way to delete a graphic?
View 1 RepliesErase Numbers With One Click?
Jan 28, 2010I have 100 textboxes with different numbers on them how can i erase theses numbers all together not like this textbox1.text = "" Erase numbers with one click?
View 39 RepliesVB2008 Erase All But Numbers?
Jul 8, 2009My program uses OCR dll to get text from other program. It copy and paste text to a text box. Can someone give me a code that will erase everything exept numbers or ".
View 2 RepliesGetting Button To Erase The Text That Is In The Textboxes When Hit
Nov 7, 2009I'm having some trouble getting my button to erase the text that is in the textboxes when I hit it. I thought it would be something like txtAnswerText.Text = "" in side of the Next1_Click sub but that didn't do anything at all.
View 1 RepliesHow To Erase Line Or Redraw Whole Form
Feb 7, 2008Here' s my code to draw a single line on a windows form.
Dim myPen As New System.Drawing.Pen(System.Drawing.Color.Red)
Dim formGraphics as System.Drawing.Graphics
formGraphics = Me.CreateGraphics()
formGraphics.DrawLine(myPen, 0, 0, 200, 200)
myPen.Dispose()
formGraphics.Dispose()
I would simply like to erase it now. I've read that the best way to do this is to re-draw the whole form, or to delete the line object..etc..
VS 2008 Erase Selected Reactangle Away?
May 16, 2011How do I erase the selected rectangle away?
Private Sub PictureBox1_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PictureBox1.MouseDown
m_drawing = True
[code].....
Copy From, Erase, Then Paste Back Into The Clipboard?
Jul 26, 2010I have to automate a program that is outside of my control. The way I'm doing this is to use SendKeys.SendWait("keys") to the other program. The problem is, there are multiple fields that might be active and no way to select a single one with confidence. The fields are all different lengths, so my solution is to copy something really long, copy it to the clipboard, and look at the last character that made it though, so I know which field is selected in the other program. This overrides the clipboard, unfortunately.
[Code]...
Erase Or Write ID3v2 Tags To MP3s?
Jan 14, 2011I already have code to read ID3v1 and v2 tags. That's not the problem. I open an IOStream, locate the ID3v2 header and pull the bytes out. Handling unicode was a bit of a sod, but I got it working.
What I don't understand is how to remove an ID3v2 tag or write one out. ID3v1 is easy - just truncate the file, then append some bytes. Simple. But ID3v2 tags don't have to be at the start of the file, do they? It's conventional, but by no means mandatory. If I just crop the entire ID3 out of the file, and close the gap, will that work? And then, to write my own tags, should I just write the bytes to the front of the file? Or do I need to update other bits of the file so the player will know where the audio data has moved to?
Also, do I need to use unsynchronisation? How can I tell if I need to?
I've looked on CodeProject; I've googled; and I've read the specification on id3.org - which, by the way, is less than clear! For example, it says that the "Extended header size" can be 6 or 10 bytes in length. So um....how am I supposed to know which one? Is there some magic way of determining how many bytes this value is being stored as?
How To Create Button Erase Answer In Form
Jul 9, 20111) I still don't know how to link how to link form 1 and form 2...(can we link or NOT??)
2) How to create button erase the answer in form?
3) How to link micrososft access n vbnet?
4) How to create button next n go to the next form?(ex: from form 1 to form 2).
How To Erase Or Write ID3v2 Tags To MP3s
Jan 15, 2011What I don't understand is how to remove an ID3v2 tag or write one out. ID3v1 is easy - just truncate the file, then append some bytes. Simple. But ID3v2 tags don't have to be at the start of the file, do they? It's conventional, but by no means mandatory. If I just crop the entire ID3 out of the file, and close the gap, will that work? And then, to write my own tags, should I just write the bytes to the front of the file? Or do I need to update other bits of the file so the player will know where the audio data has moved to?Also, do I need to use unsynchronisation? How can I tell if I need to?I've looked on CodeProject; I've googled; and I've read the specification on id3.org - which, by the way, is less than clear! For example, it says that the "Extended header size" can be 6 or 10 bytes in length. So um....how am I supposed to know which one? Is there some magic way of determining how many bytes this value is being stored as?
View 1 RepliesUpdate Simple - Erase All The Rows In The DataGridView?
May 4, 2011simple question. How do I erase all the rows in the DataGridView? This is the code I got:
[Code]...
It updates the values, but say a row was deleted from the database. It will get rid of all the values in the row, but it will keep a blank row. This results in it throwing this error: System.IndexOutOfRangeException: Index 1 does not have a value.
VS 2008 Erase Line From Text File?
Oct 2, 2010Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If System.IO.File.Exists(FILE_NAME) = True Then
Dim lines As New List(Of String)
Dim text As Array = File.ReadAllLines(FILE_NAME)
lines.AddRange(text)
[Code]...
i get this error Index was out of range. Must be non-negative and less than the size of the collection. Parameter name: index
for the line lines.RemoveAt(lines.IndexOf(ListBox1.SelectedIndex))
Erase The Detail Of File Each Time When A Button Click?
Oct 9, 2010i am writting a programm in vb net and i need to erase the detail of file each time when a button click
View 2 RepliesVS 2010 Painting When To Draw/erase Snap Lines?
Oct 6, 2010I have started to work some more on my 'shape editor'. If you're not familiar with it,ust imagine the Visual Studio form designer: a 'canvas' (the form) with a bunch of 'shapes' (the controls) that can be selected, moved, resized, etc. I have just finished implementing snapping between shapes and the canvas boundaries. But now I am having some slight issues with painting the snap lines.Just FYI: this is what I mean by snap lines:The blue lines that indicate that the 'buttons' are snapped to each other, and a purple line indicating that button1 is snapped to the boundary.
My shape editor is based loosely on jmcilhinney's 'manipulating GDI+ drawings' codebank entry, and a central idea in that post is to only draw what is necessary. In other words, when I move a shape I could re-draw the entire canvas, but it is much faster and smoother to only re-draw the old and the new location of the shape. Since nothing else has changed, I don't need to draw the rest. So, I simply invalidate the old bounds and the new bounds, and even with a lot of shapes all moving simultaneously it still feels very smooth.
VS 2005 Drawing On PictureBox Erase When A Window Move On Front
Dec 25, 2009I used a picturebox to allow user draw lines by mouse. I used this code in mouse down:
Dim D As New System.Drawing.Pen(DrawingColor, 2)
Dim g As Graphics = PB.CreateGraphics()
g.DrawLine(D, X1, Y1, X2, Y2)
but when a window appear on front of picturebox... its seams that picturebox redraw itself, so drawn lines erased.
Update And Query And Erase In Database On Visual Studio Using Office Access
Oct 1, 2009HOW TO update and query and erase in database on visual studio using officce access
View 3 RepliesFCL For A Method That Will Allow To Erase A Line Of Text From A Text File And Replace It With Another Line Of Text
Dec 19, 2008I've been looking through the FCL for a method that will allow me to erase a line of text from a text file and replace it with another line of text. Neither the StreamReader nor StreamWriter have a method for replacing or removing Text from a text file, as does the string object. Are there any available methods for erasing just certain lines of text from a file, and then replacing them with others?
In my code, I'd like to locate a certain line in the text file, and then at that point in the text file, use a For...Next Loop to replace each successive line of the text file with new text:
Dim user_data_file As String = "user_data.txt"
edit_input = New StreamReader(user_data_file)
Dim edit_line As String = edit_input.ReadLine
[CODE]...
However, I can't find any methods that will allow me to do this.