As I design my system using VB.NET with SQL Server/T-SQL I'm always struck by what seems to me an obvious gap, namely VB Class Properties. Say I have a table Employee with columns: [code]In VB I might have a class like:[code]So my property SpeaksAForeignLanguage depends on two fields currently. Perhaps someday this will change and more fields or conditions might come into play. THAT'S THE WHOLE REASON for using properties.Now if I need the equivalent of my property in SQL for whatever reason there's no way to do it other than to recode some SELECT statement using the two Knows... columns.
Is it possible to automatically insert a Code Snippet when an interface is implemented? If so, how do you do it? I am looking for something similar to when you implement IDispoable in VB.[code]This will be used by web forms when transfering parameters from one page to the next using Server.Transfer
I have a custom user control that inherits asp:Repeater and get's 'initialized' on first run - it finds the children controls (in repeater item template) and creates a SQL table based on a tablename property provided as an attribute on the control. To know not to initialize it again, I simply check for the table (this has issues).
My problem is, tablename property should not be changed after initialization, days or even weeks later.
How can I tie a readonly property and value to a particular control only after initialization?
Sounds pretty tricky, maybe impossible. Out of the box solution?
So I have had some "free" time at work and came across a write up some where on these forums yesterday for a messenger system. I would REALLY like to give credit where credit is due because alot of the source for this was borrowed from the write up on here but I don't remember where the write up is located or who wrote it so please if you have a link to it post it. Thank you again to who ever wrote it. Any how on to this. I have expanded the origional messenger I found on d.i.c to include multi-user "chat" if you will. It is still a basic p2p messanging system because you can only talk to one person at a time but you can speak to multiple people in the same window. So far I have been able to get it to work across our LAN here at the office but am wondering if I can change the text file locations to an FTP some how and make it internet based. I am sorry for the uncommented code as I was in a rush cranking this out but it is fairly simple so you should be able to read through it with ease.[code]
Since I had some trouble with my Windows Media Player playlists lately, after moving the music from one HDD to another, I decided to try my hand at my own playlist manager / editor. I've got a few ideas that I think may make it very useful, even if it's just for myself (I'm finally starting to worry about organizing my music as it's getting a little crowded now).
I'm making a control and I am trying to finalize my design time properties grid. I have several List(of Class) items as public properties and when I click on the design time menu (while testing the control) there is the word "Collection" and a button with an ellipsis (...) that brings up a neat pop up with the buttons Add/remove and all of the public properties of the collection's class on the right hand side. Basically for a non-collection instance of a class (with public properties) I'd like a similar button to show up. I know I could put all of the properties in the main control class and group them, but I like the pop up box feature. Anyway to duplicate this? (think font grid item etc.)
In the form design I set up a TableLayoutPanel, 20x20 cells and in cell (1,1) a PictureBox (called Target) containing the image of a small target. The properties box for Target shows some very promising properties, Column and Row - and if you overwrite the values in the properties box, the PictureBox obligingly shifts to the corresponding cell position in th design. However in VB it is not possible to refer to Me.Target.Row or .Column - neither appears during coding in the menu of properties, and deliberately coding either of them produces an error like
Error 1 'row' is not a member of 'System.Windows.Forms.PictureBox'.
1. Why does the properties box show properties that cannot be altered programmatically?
2. How can my program move Target around in the TableLayoutPanel?
I'm working on a Hazardous Materials label printing program. One of the options is to do an "NFPA" label. Since there are 4 values required with 4 or 6 options, the ratings are entered via radio buttons in a group box. That's working okay. I display values in the NFPA diamond as they're entered: left quadrant blue, top quadrant red, left yellow, bottom red. I'm having trouble with the label in which the rating will be displayed on top of a jpg diamond for the white. In this quadrant the text can be up to 4 characters. I can accept the text going into an adjacent block a little, but the corners of the label overlap into another quadrant/color. I reduced the font size which solved the overlap problem but the font is then too small and looks terrible. I tried to make the background of the label transparent to let the color come through correctly but that's not a valid value for label.background. I'm figuring that the transparent background is the best solution. What can I use that will accept a transparent background so the color shows through?
I'm trying to set the transparent property via label properties properties, not via code. Here's the code if it makes any difference:
Public Class NFPA Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click Close() End Sub
How to change all properties of a form to properties of other but don't change important properties like Owner,Handle, OwnedForms, Parent,HasChildren,Controls and ... .I have a child form that i want it to provide controls of Form.The background form provides Aero frame and child form is a transparent form in it.I want it because I want to draw buttons with system style in Aero in Windows Forms.This is my own code but it does not work good (ForeForm is child form):
For Each Propertry In ForeForm.GetType.GetProperties() Select Case Propertry.Name Case "AeroBackgroundEnabled", "FormBorderStyle", "TransparencyKey", "Parent", "Owner", "ShowInTaskbar", "Handle", "HasChildren", "OwnedFo[code].....
Additionaly:I wrote a great Aero Form.I don't publish current version (1.2) that supports Aero Blur,RealTime Aero Color change,extend Basic theme?
i've been trying to make a simple web browser, but i've been trying to have it run on WebKit because IE sucks. The first form is where the user enters in a product key, and after they enter in the correct key, it's supposed to open up the next form containing the actual web browser, except this is where i'm getting errors.
On a Windows Form in .Net 3.5 I have created a menu object and populated it with ToolStripMenuItems. One of these items has a DropDown object attached. The DropDown should appear when the mouse hovers over the parent ToolStripMenuItem and disappear when the mouse leaves the ToolStripMenuItem unless it is "leaving" the parent by entering the parent's DropDown.Also, I don't want the DropDown to automatically close when the user makes a selection in it, so I have set its "AutoClose" property to False.
Getting the DropDown to appear was easy. I just set up a handler for a "MouseEnter" event on the parent ToolStripMenuItem. But I'm stuck trying to make the DropDown disappear at the right time. If I set up a handler to close the it when the mouse leaves the parent ToolStripMenuItem, it becomes impossible to use the DropDown, because moving the mouse into the DropDown means "leaving" the parent ToolStripMenuItem, and so the DropDown closes as soon as the user tries to hover over it!
I haven't been able to figure out how to detect if the mouse has really left the whole ToolStripMenuItem / DropDown assembly (in which case the DropDown should close) or has only "left" the ToolStripMenuItem by entering the DropDown (in which case the DropDown should not close).This seems like a common design - a drop down that appears / disappears when the mouse hovers over / leaves the parent element - so how is it normally done?
how to implement such a thing , i am currently programming a compact framework vb.net this is what i have done and am stuck,what ive learn is very basic and simple i am using a sqlce query to use it to search for any string matching entries in the database and then it will display it something like google search engine.And am using visual studio 2005, what ive done is that i will use the datareader to search for the rows in the database and then i will have to assign them to something that is similar to google search engine a dropdown list of similiar results but am not sure how. What im doing is for the user to search for a particular salesman name and then have a progressive search function to also help the user to complete typing rather than typing the full words
Public Class FinanceSalesManCom Dim connection As New SqlCeConnection("Data Source = My Documentsfinance.sdf") Private Sub txtSalesman_TextChanged(ByVal sender As System.Object, ByVal e As
I want to achieve this in .NET either in WPF or VB.NET
I have a passport size photograph. In that I want to implement a fade effect on image border. The fade parameter we pass would be the pixel width and we require to fade image border such that fade depth is decided by this parameter.
Note:- I am not using any controls to hold this image. Customer will upload the images in the applications and we will modify the above required and send them through email it is going to be console application. any WPF or VB Controls to implement this.
I am very new to VB.net and I am having a hard time figuring out this error. I am using Visual Studio 2010. The error is like this[code]...
I am also attaching all the files need to run this program. Please help me because I have been scratching my head for more than a week without any success.
The inorder traversal is working fine, but when I implemented the Breadth First Search Traversal to show the output of a numbers by level, then I started getting this error because I implemented new queue class (clsQueue.vb)for this.
On Form1 I have two textboxes (Username, Password), two checkboxes (Remember me, Keep me logged in) and a 'Login' button. I am using a MySQL database. Here is my code (w/out my database info, of course):
MySQLConnection = New MySqlConnection MySQLConnection.ConnectionString = "server=REMOVED;Port=3306; user id=REMOVED; password=REMOVED; database=REMOVED" MySQLConnection.Open()
I am working on a plugin architecture and after some reading I have settled on one. The host class will be implemented in C# as well as some of the plugins for that host. The issue I am having is that some of my team uses VB.net. So the question, is it possible to implement a C# (plugin)interface in VB, such that when it is dynamically loaded into the host program it will have the methods required by the interface.
I used to do this by eg String(52,95). (Getting 52 repetitions of an underscore) Cannot make out how to do it in dot net. I realise that String is no longer right but Str is not working either.
im trying to implement a search function to my booking program, wich retrieves data from a SQL database. I have the screan all set up and all the variables at the ready, the only problem is, im not sure how to execute it in a sqlcommand line.
I've got all the fields that are required, such as date, time but i also have two optional options, Room Type and Room Capacity.
How would i write a sqlcommand to search for available rooms that meet the criteria for the room to be booked?
Dim SPECIAL As Acronym = "Strength, Perception, Endurance, Charisma, Intelligence, Agility, and Luck." The game I'm working on is going to use this style of system.
What I need to do is:
1. All SPECIAL values have to be between 1 and 10. [DONE]
2. When adding and subtracting from any SPECIAL; update remaining points accordingly.
3. If remaining points = 0, then you cannot increase any SPECIAL.
4. If remaining points <> 0, then you cannot continue until all are spent.
I'm up to task 2, but having some difficulty.I managed to figure out how to do it for one. For example:
Sub Numeric_Up_Down_Strength_Value_Changed() Handles Numeric_Up_Down_Strength.ValueChanged Label_Remaining_Value.Text = CStr(10 - Numeric_Up_Down_Strength.Value) End Sub
But I'm having trouble figuring out how to make it work for all. I've had some ideas but upon trying to implement them I've been having data type conversion errors.
I'm new to ASP.NET MVC and need abit of advice on how to implement the following.The site is a heavily used site with roughly 200 users internally (intranet). We use forms authentication hitting a SQL Server DB (not windows integrated).
Some actions are protected, some are viewable by anyone and some are viewable by both - so if theres a logged in user they see their stuff from the DB, otherwise they see a temporary profile - much like StackOverflow.
How would I go about implementing a security model for this scenario? Can I reuse the existing framework in ASP.NET MVC and use the authorization filters?
GOCR is a common Optical Character Recognition software that can be implemented into almost any programming language. You must convert the image you wish to convert into a PNM file and then proceed to call the executable OCR file. I cannot find any conversion methods for Visual Basic, nor am I quite sure how to send the file to the program and retrieve the text. Has anyone ever worked with GOCR or happen to know anything above?
As many of you know, GOCR is a common Optical Character Recognition software that can be implemented into almost any programming language.You must convert the image you wish to convert into a PNM file and then proceed to call the executable OCR fileI cannot find any conversion methods for Visual Basic, nor am I quite sure how to send the file to the program and retrieve the text. Has anyone ever worked with GOCR or happen to know anything above?
IM Looking at Implementing MVVM in Silverlight.Kind of new to Silverlight and I'm Definately new to MVVM Pattern.I get it all But I want A set of small Prism VB.Net MVVM exmaples if that makes sense.
