Storing Last 5 Messages For User To Scroll Through
Aug 11, 2009
This is for a game i've been working on in C# & XNA. I'm not asking for code however, so language doesn't matter. I've got a console. I want to store up to the last 5 messages sent so the user can scroll through them. Additionally, I want to store whatever their message was if they hit up to go through the messages, so if they hit down again they have it back. If they send a message without going back to that, it's lost. I'm not really sure what a good implementation for this might be. I'm thinking a string array where the last value gets deleted each time a message is sent, and a separate string for the current message.
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Sep 24, 2008
here I am again I have written a small class called 'Messages' that holds the user messages.The case is that I am not being able to import it. Here it is:
[Code]...
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Jan 10, 2012
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?
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Aug 21, 2011
I am implementing a chat client in an application. Conversation windows are tabbed and I have to alert the user for new messages. My temporary solution was like this:
There is a timer with 500ms interval ( always running ).
For Each t In SuperTabControl3.Tabs
If TypeOf t Is SuperTabItem Then
If t.Tag = "1" Then
[Code]....
Will this cause performance issues? I have no possibility to try on an older computer but they will use this application on slow pc's.
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Dec 21, 2009
i have an admin master page where i want to place a label which i can control with two functions (setErrorMessage and setSuccessMessage) both functions assign strings to label's text property and change CssClass property according to function type.
I want to use these functions from nested pages while the control remains centralized on master page so i can return to form in case of error so user could edit wrong input.
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Nov 1, 2011
We don't want to get the password, we only want to store the user credentials so when they do work on the application we can apply their usernameto each operation and when they are done with an operation and do a digital signature by scanning their badge we want to compare the user's credentials with the stored credentials to ensure the user has logged in and is the current user.1. User 1 logs into the program using their username/password for windows.5
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Aug 5, 2011
What is the best way to handle a function that might occasional fail to evaluate, but even when it does fail does not require a halt of the parent routine, though sometimes might require an explanation to the user?I have such a function, deep in my code, that returns a number. Codingwise, the simplest approach would be to make the function nullable, and return null when it can't evaluate. That way the calling routine can continue while also knowing the function failed to return a number.
However, depending upon the circumstances, sometimes I want to display the reason for the fail to the user so they know what to fix. Obviously just returning null isn't enough information. Should I be raising messages inside the function itself as it evaluates for anonymous listeners to catch, to be displayed if desired?(For those rightfully pointing out that logic functions shouldn't be responsible for creating user messages, I didn't mean to imply the function generates the full text message, just somehow transmits the reason for the problem so that the UI could later parse that into a message)
The other option I suppose would be throw exceptions inside the function if it can't evaluate, then catch and interpret to user messages if desired. However, as stated the inability to evaluate typically does not signify a halt to the routine, and now I'd have to put a Try...Catch block around the function call everytime I use it.
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Mar 11, 2009
I need help for error messages for senerio like.... If i onli allow user to enter only numeric. And if i onli allow user to enter text start with "DM"...
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Mar 10, 2011
i have a problem with my picture box. first let me discribe whats its like, i have a panel underneath my picbox so i can allow the user to scroll across the image when its zoomed in, when i zoom in image for example:
'zoom image
'when button is clicked zoom image with
each click'
Private
[Code]....
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Jan 2, 2010
I have an app that I'm using Form2 to display informaitonal messages without having the user to press the OK button. I DIM form2 as a new form as a global and then add a lable to it on the fly and then control it's appearance with a timer. This all works great providing the main form is being displayed however I can't make Form2 show up if the main form is minimized or hidden. I can get around this a bit by keeping the main form maximized but change it's Opacity to zero but once I do that I have no idea how to return the Opacity back to normal when I do want to see the form. Anyone have any ideas on how to make Form2 display if the main from is minimzed or how to control the Opacity of the main form so I can return things to normal? I was thinking that there might be something I could do with hovering over or clicking on the icon in the taskbar but I don't know what that event might be.
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Aug 9, 2009
I am trying to create a system for users to login and have assigned roles ie user, manager, admin etc. but i cant seem to find a way to do it my code for login is below
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Login_btn_OK.Click
Dim conn As New SqlClient.SqlConnection
Dim command As New SqlClient.SqlCommand
[code]....
Just after a way to recall user credentials to display appropriate content depending on their role?
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Dec 10, 2011
I want to use spy++ or Winspector But from what i Read they Dont work on windows 7 64bit Correct ? Im trying to read WM_COMMAND Messages from a App.And whenever i Select 'Log Messages' And find the windows etc.Nothing show's up. Is there a alternative ?
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Apr 3, 2009
How can a make a picture box that can allow the user to scroll through the image?
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Feb 7, 2011
The following zipped up Visual Studio Solution on Skydrive is immediately buildable and runnable; a usercontrol on a Form. Problem? If you click on any of the Edit Buttons and move the Horizontal Scroll, the values as they change in the Label_Values are off by one when you release the slider button. I think this is a timing problem between the Paint handler and the Horizontal Scroll event handler at the very bottom of the User Control code. Sorry I didn't eliminate
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Jan 6, 2010
create a message box that stores my user name, message, and post datetime into the database as messages are sent. Soon came to realise, what if the user changed his name? So I decided to use the user id (icn) to identify the message poster instead. However, my chunk of codes keep giving me the same error. Says that there are no rows in the dataset.
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
Dim name As String
Dim icn As String
Dim message As String
[code]....
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May 13, 2011
the application is used to find a given file name in a given file directory and put messages to remind user at a given time.
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May 22, 2012
I have a tab control with two tab pages. One page has the auto scroll enabled since there is to much content in the page. The middle mouse wheel doesn't scroll the scroll bar; I have to actually click and hold the scroll bar and drag it down to scroll. Is there a property to allow this?
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Nov 11, 2010
I am having an odd problem with the Horizontal Scroll Control in my program.I am using it to scroll a series of panels across a form.This is my code:
Private
Sub scrHoriz_Scroll(ByVal
sender As[code]....
The problem is that this works perfectly if I use the left and right arrows and it also works perfectly if I use the scroll bar's slider SLOWLY. If I scroll using the slider and move it quickly then the scroll gets out of sync.The small change and large change are both set to 1 and maximum is set to 8
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Aug 5, 2011
I have a DataGridView with a panel above it, that contains a group of textboxes above each column. My DataGridView has a horizontal scroll bar. What I want to do is when the DataGridView scrolls horizontally, scroll the panel with textboxes above it, so they stay aligned.I tried handling the DataGridView's scroll event, but I'm not sure what to do with it.
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Jun 12, 2011
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.
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Jan 6, 2010
How would I leave the vertical scroll position as it is and set the horizontal scroll position all the way left if it isn't already in that position? I've been using Me.AutoScrollPosition and have come up with code that is satisfactory but I haven't been able to always leave the vertical scroll position exactly as it is and just move the horizontal scroll position to the left limit.
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Mar 13, 2010
I have a textbox that shows events on a program, which I add. I use the 'scroll bar' option on the textbox to show the vertical scroll bar, but how do I make it stay at the bottom most possible? I am using this code while I am trying to learn how to do what I want the scroll bar to:[code]But how do I get it so the scroll bar will stay at the bottom-most it can? I'd like the newest, most recent events to appear at the bottom of the textbox, and to have the user not have to scroll down every time something new is added.
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Aug 19, 2009
i have 2 controls on a form. Panel1 and picturebox. I am using the following code to zoom in.
PicBox.Width = PicBox.Width + 100
PicBox.Height = PicBox.Height + 75
'PicBox.Left = PicBox.Left - 50
'PicBox1st.Top = PicBox.Top - 20
i am also using the following code to try and scroll whilst zoomed in
Inherits System.Windows.Forms.Form
Private m_PanStartPoint As New Point
Private Sub picbox_MouseDown(ByVal sender As Object, ByVal e As System.Windows.Forms.MouseEventArgs) Handles PicBox.MouseDown
'Capture the initial point
[code]....
I have set the panel to autoscroll and added scroll bars but they do not scroll far enough... They only scroll about 2cm.
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Dec 10, 2009
Following default the datagridview will scroll following vertical. How can i do that. I tried :
DataGridView1.ScrollBars = ScrollBars.Horizontal but not work
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Oct 30, 2009
Is it possible to write code to make a scroll bar scroll? I have a working scroll bar on my form.
I am using voice in my application and I just want to know if there is code that I can write to make it scroll so that I can add that code with a voice command so it will scroll.
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Feb 19, 2011
I'm trying to use a cell phone modem to send an sms message but i'm not sure whats wrong with my code?? Also i'm getting en error with _ContsSMS = False .. but i have no idea what that line is ? (Also are AT commands not used for Windows 7, is this why it wont work?)
Using COM7 As IO.Ports.SerialPort = _
My.Computer.Ports.OpenSerialPort("COM7")
'set command message format to text mode(1)
[Code].....
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Aug 20, 2009
How would i start to go about creating an instant messenger? I start with MDI Child Form. But how would i get the messages to be sent instantly?
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Jul 28, 2010
I have read the MSDN Page on how to suppress messages. I am unable to supress warnings for VS2008. [code] The problem was I had a series of parallel tasks that were dependent on check boxes. I wanted each task to to run simultaneously and then join back. I overcame the warning by using a callback method that decremented until all the call backs completed. [code] The warning was an Uninitialized Variable. Which was not the case as it was dependent on identical if-statements. I opted to use a callback method instead, which turned out to be a better alternative and did not lock up the GUI.
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Jul 7, 2009
How do i write into my code an error message to pop up once the user of the interface tries to enter in one more item than the maximum number alowed? Here is the code i have so far.[code]...
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Jan 5, 2011
In my program I am using a MySQL database and I want to allow users to send each other messages ("Emails"). How can I go about something like this? I'm not wanting someone to do my 'homework'
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