So iv tried converting this code into vb.net from vb6, but whenever I run this application I get the following error "Attempted to read or write protected memory. This is often an indication that other memory is corrupt." on the underlined line.
Public Class Form1
Private Const SB_VERT = 1
Private Const WM_VSCROLL = &H115
[Code].....
I am loading several command buttons into it (one in each grid box). I have the panel set to autoscroll. When TableLayoutPanel is set to AddColumns, all works well. However, I dont want horizontal scroll, I want vertical. When I set TableLayoutPanel to AddRows, a vertical scrollbar will not appear.
View 4 RepliesI've made it sofar that I can scroll through the list using timer.But I want when the end of the list is reached the selectedindex should return to the first item (or different if set).Now it stops at the end and gives an error:
InvalidArgument=Value of '4' is not valid for 'SelectedIndex'.
Parameter name: SelectedIndex
This is the code I use (timer1_tick):
[code]....
I'm having a problem where I have elements such as Listboxes and Rich Text boxes that I want to set to size automatically in xaml according to the size of the window, but I only want it to resize to the size of the window and then put scrollbars if the content is any bigger than that.
Unfortunately, the only way I can get scroll bars to work is if I set a specific height of the listbox/rich text box (which does not work because I want it to automatically resize to the height of the grid that it is contained within, which is generally the height of the window (auto).
I am trying to build a language tool, basically I am getting lines of text into a richtextbox and playing the audio for that line. Things are working great except that I want to highlight the text being played and autoscroll when it plays the next line. how to implement the line highlighting and autoscrolling.
View 2 RepliesI am trying to auto tab to the next text box after my limit of characters has been reached in a text box. Visual Basic 2010 Can this be set in the properties? I have 7 boxes, each allowed to hold only one character.
View 5 Replieshow can i let RTB autoscroll? and how can i add more than 1 smiley/emotican with this script?
Dim myImage As New Bitmap("C:smile.gif")
'~~~ Check if the RichTextBox has a smiley symbol ":)"
Do While rtbClient.Text.IndexOf(":)") > -1[code].....
Heres my problem, My app outputs info into a textbox as a log and appends the new lines to the end of the textbox, is there a way i can scroll the textbox so it displays the end of the text? I had considered writing the line at the top and appending the rest of the data to it but the line is hard to do this way (it uses info from 2 seperate subs and would need a global or a new textbox) and ideally i would like the info at the end in chronological order. the textbox is refreshed at the end of each entry.
View 2 RepliesWell un-like the textbox when AppendText() is used, the box doesn't auto-scroll down to the end, now I already know about caret position scrolling & all that but if I use it it seems to scroll slightly past the endline about enough to show yet another line if there were one.Now I was going to use code from a post I had inquired about similar but it's not working here in vista(SendMessage function) isn't functioning at all, it says the endpoint wasn't found, I guess meaning the function in the .dll wasn't found to be used.url...It was originally for a textbox to retain position if your not scrolled down to the bottom, which I want to keep such functionality in a RichTextBox but make it scroll to the bottom otherwise(hopefully not the slightly too far problem I have with caret position now...)
View 8 Repliesi'm implementing search on a richtextbox and i want to auto scroll up/down left/right when needed. i tried ScrollToCaret but it always scrolls. even when the searched text already presented on the shown part of the text.
View 2 RepliesI need my webbroswer control to autoscroll down and over to a certain portion of the page when the page loads. How do I do that?
View 3 RepliesIn a listbox I have items that I want to display in a label.I've made it sofar that I can scroll through the list using timer.But I want when the end of the list is reached the selectedindex should return to the first item (or different if set).Now it stops at the end and gives an error:[code]
View 3 RepliesI have this code:
Code:
Private Sub DragDropListView_MouseMove(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles Me.MouseMove
If KeyItem Is Nothing Then
If tmrLVScroll.Enabled Then tmrLVScroll.Enabled = False
[code].....
but I can't get it to auto scroll vertically for largeicon, smallicon, and tile listviews.
I have a datagrid control in my winform application. It has nearly 30 columns. First 2 column are frozen and others can be views using scrollbars.
Its working fine.
I would like to add some functionality on it by allowing user to select a column from column list above and making the datagrid scroll to that column automatically.
So i would like to ask how could i make my datagrid to scroll to specified column automatically.
I'm making a chat, but when the messages appear in a textbox, it doesn't auto scroll down. Is there a way to auto-scroll down when the messages appear?
View 1 RepliesI have this code which places text into a textbox control. [Code] How can I make that textbox autoscroll to the end of the textbox contents? I've read countless times that if I use TextBox1.AppendText instead of TextBox1.Text += the textbox will automatically scroll. [Code]
View 4 RepliesI'm just now starting to work on something that works 'like' an ide, where it will auto space my text as I type. I really JUST started and I'm not sure if I'm even doing it remotely like I should. anyways, what I'm doing is on TextChanged (eventually I'll just do it on newline but that can wait) it gets the contents of the text box, puts each line into a string array, trims the excess whitespace, see's if it has a keyword in it, and then adds some whitespace to it if it does.I know I'm doing something wrong with either my declarations or my error handling. Mostly because i'm not sure how to work with string arrays, can you help me with my syntax?[code]
View 2 RepliesI'm trying to create my own custom "inputbox" (can't think of VB.Net term for the VB6 input box).
Anyways, I'd like to have a label & a textbox on my form along with 2 buttons. I want to let the label to grow based on the text that is in it. I know it has an autosize feature to it, and guess I can use that, how do I limit the width so that once it hits that limit it goes to a new line so that if I have a message or a question to pose to the user, it doesn't get too wide. Kind of like MessageBox.Show.
It'll be Label at the top, textbox under that, and the two buttons under that. I'd like the textbox to move up/down based on the size of the label, and the buttons to do the same along with the window not becoming too wide.
A panel with enabled scrollbars has many buttons. If I push the tabulation key, focus navigates between buttons.When a partially visible button has focus, the panel scrolls itself in order to completely show the button.
View 1 RepliesI have a program that adds controls on the fly to an auto-scroll panel. When the panel is scrolled (viewing the bottom of the panel for example) and a control is added, it looks like it is added assuming the top left corner of the panel is still at 0,0 when in fact it may be 0,500. To see what I am talking about, create an empty "Windows Forms Application" project and insert the below code into it.
Friend WithEvents Panel1 As System.Windows.Forms.Panel
Friend WithEvents btnAdd As System.Windows.Forms.Button
Dim ButtonCount As Integer
[code]......
I have a list of all the fonts on a users system under a Font menu item. I would like to be able to use the scroll wheel to be able to scroll through these items like you can with a combo box.
[Code]...
i'm getting some errors after i converted it to C# well here it is
[code]...
And Converted in C# gives me allot of errors i can't even post it :/ convertor used [url] i need this class for my security program
I have a wrapper class created around TextBox, and I want to find out if there is any way to test if the vertical scroll bar is at the beginning (the very top) of the text box and at the very end of the text box.Alternatively, I will be happy if only I can find out a way to check if a scroll bar is enabled or not in a textbox (note: it's not a RichTextbox).
By enabled, I mean that scroll bar is actually enabled i.e. you can use the scroll bar to scroll the control, not just visible (I know we can check visibility by GetWindowLong)
All of a sudden, my form is giving an error on the form1.text Error 53 Value of type 'String' cannot be converted to 'System.Windows.Forms.ToolBarButton'.
vs 2008 shows it occurrs in the InitializeComponent:
Me.Name = "Form1"
Me.Text = "MyForm"
I dont know but I must of unknowingly changed something and now I cant put text in the form header?
My application allows users to specify a logo. When they choose the logo I need to scale the image to accommodate my application's use. Everything works great except for transparent GIFs, the transparency is not preserved and it is converted to BLACK. Here is my
[code]...
How can a preserve an image's transparency if applicable?
I converted one of my projects from Visual Basic 6.0 to Visual Basic.NET and noticed stuff such as:
Quote:
'UPGRADE_WARNING: Structure PROCESS_INFORMATION may require marshalling attributes to be passed as an argument in this Declare statement. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="C429C3A5-5D47-4CD9-8F51-74A1616405DC"'
'UPGRADE_WARNING: Structure STARTUPINFO may require marshalling attributes to be passed as an argument in this Declare statement. Click for more: 'ms-help://MS.VSCC.v90/dv_commoner/local/redirect.htm?keyword="C429C3A5-5D47-4CD9-8F51-74A1616405DC"'
Clicking on the link it talking about Imports System.Runtime.InteropServices. Which, I am guessing means the project a mixture of both .NET and .COM. How would I rewrite to be totally .Net compatible instead of relying on .COM?Also where would I put code in VB.NET if it was in the Form_Initialize() sub in VB6.0?
make the text in a text box into a text file that auto-creates in a specific?
View 4 Repliesmake the text in a text box into a text file that auto-creates in a specific?
View 4 RepliesI have over 4,000 xml files that needs to be converted in to a character based on a value and entered in to a rich text box. It will do this, until it runs out of files to read. I have tried "try" statements, "if" statements...
Imports System.Xml
Imports System.IO
Imports System[code]........
I am not able to use Format function in a converted VB2008 project in VS 2010.
MSDN Documentation about Format function in not available for VS 2010.
Has that function been deprecated? If so, what is the alternative?