Kandisa's Q&A profile

• Visual Studio Express Editions Combobox and Datagridview

  HI, I apologize if this has been covered. I'm sure there is a quick solution for this. I'm want to be able to take a selection from 2 comboboxes and display this data in a DataGridView. The Comboboxes are filled with data from a Database. Also I only want the GridView window to display data from the selection not everything in the table, so it would remain blank until a selection is made. One last thing, how do I stop duplicate data from being displayed in the comboboxes. Should I setup separate tables and make the tables relational Thanks in advance. Peter Somewhat. Thanks for the help. I'm new at this so, I need to ask a couple of questions. Currently, I have the DataG ...Show All

• Visual Basic how can we get the last 5 charecter of string?

  how can we get the last 5 charecter of string for eg 99919016 28387 i want 28387 thanks ...Show All

• Visual Studio 2008 (Pre-release) How to use DependencyPropertyConverter

  I have a need to procedurally get a reference to a DependencyProperty, and all I have at my disposal is a string. In the past I have been successful in doing this through creating a DependencyPropertyDescriptor, constructing it out of the name, owner type, and target type, and then simply reading its DependencyProperty property. It seems however (in theory) that using a DependencyPropertyConverter would be a superior solution to the one listed above. The documentation states that it can only convert a DependencyProperty to and from a String. It also says to use the following format in specifying the string: namespacePrefix : className . propertyName . Here is the article I am referencing: http://msdn2.microsoft.com/en-au/library/sy ...Show All

• Windows Forms How to change vertical scrollbar size of listbox control?

  Hi, I develop app in C# that users act on touchscreen. So I want to increase the vertical scrollbar size of listbox control bigger so users can touch it easier. In addtion, I can not change the WindowsOS setting because it will effect other apps. Re-writing the listbox control is the last painfull option. MA Never, really. Touch screen apps tend to run on one-app PCs. If at all, they have the standard MSFT software installed and they seem to be carefully tested to be flexible with non-standard metrics. The only control you got to watch out for is the listview in details view. It is easy to layout the headers so they look good, then get a horizontal scrollbar when you increase the vertical ...Show All

• Windows Forms RichTextbox bold

  hey, I am having trubble amkign the text in the richtextbox bold..I used this code: thisrichtextbox.SelectionFont.Bold = true ; but it gives me this error: Property or indexer 'System.Drawing.Font.Bold' cannot be assigned to -- it is read only Thanks:) use the control's font instance instead i.e: this.Font........ would use the current font being applied on the form this.theRTBControl.Font.......would use the current font being used in the RTB Control ...Show All

• Game Technologies: DirectX, XNA, XACT, etc. main menu

  Will you be able to create a main menu and if you can how will it be done Having spent some time working on a MDX game, I found the UI samples a bit <crude> to say the least. As Windows developers, we're accustomed to being able to drag and drop buttons, sliders etc onto a design surface, and wire up the events. The MDX version is, well, a little limited. With Vista offering xaml based UI, what I'd like is a xaml based interface in xna - I know it would be a big job, but why reinvent the wheel Think of the cracking UIs we could have in games then - video in buttons, dynamic gradient shading, etc all without having to write code...Nice. ...Show All

• Software Development for Windows Vista Shell Extensions?

  In Vista Beta 1 our shell extensions worked but in beta 2 Build 5384 it no longer works. I found some mention of Like all COM objects, Shell extension handlers must implement an IUnknown interface and a class factory . Most must also implement either an IPersistFile or IShellExtInit interface in Windows XP or earlier. These were replaced by IInitializeWithStream , IInitializeWithItem and IInitializeWithFile in Windows Vista. The Shell uses these interfaces to initialize the handler. In some msdn documentation but I can't find any samples. Anyone have any information Thanks. Hello All, I have an application which creates Context menu handlers(implement IShellExtInit and IContextMenu) .These do not work ...Show All

• Visual C# SQL schema discovery - find primary key

  Hi, since DataTable.Load(IDataReader) does not read primary keys, how can I find them Probably using DbConnection.GetSchema... It would be great to have this done within common schema collections, however, SQL Server specific would be acceptable as temporary solution. Thanks, Jan You can use sql view: SELECT * FROM INFORMATION_SCHEMA.KEY_COLUMN_USAGE WHERE TABLE_NAME = 'YourTableName' Probably every DBMS has different way of storing this information. I know that for getting table schema i used completly different way of getting that information from SQL and Access. For sql was a view like this one, but for Access it was using GetOleDbSchemaTable method of oledbconnection ...Show All

• Smart Device Development Send MMS via PC to Mobile

  Hi! Does anyone knows how to send MMS cia PC to mobile using C# I need to create the MMS from the PC and use the mobile connected to the PC to send MMS to my mobile. Any ideas how to do it Hello! Kihat, Did you found an apllication for sending mms to mobile from the pc If you get it, i would like to kow if you can explain me or send me it Thanks ...Show All

• .NET Development How may threads per CPU ??

  Hi! I'm writing a app that works with a lot of asynchronous operations, i use a own semaphore : private void WaitFor() { while ( this .semaforo >= this .maxTask) { System.Threading.Thread.Sleep(randomClass.Next(100, 300)); } this .semaforo++; }   I always doa this.WaitFor() before call a  .BeginInvoke(...) method, therefore i can control the number of simultaneous asynchronous operations. I want know now, how may threads i must allow per cpu in the machine (we have machines with 1, 2, 4 and 8 proccessors) Regards. This article from Joe Duffy should answer your question: http://www.bluebytesoftware.com/blog/PermaLink,guid,1c013d42-c983-4102-9233-ca54b8f3d1a1.aspx Yours, Alois Kraus ...Show All

• Internet Explorer Development accessing dhtml/dom within c# user control

  Hi, I have an embedded .NET user control in a web page, and I need to be able to navigate to a different page with the same browser when I click on a button in the control. How can I access IE's DOM from within the embedded control written in C#. I've been researching this issue for months, and have only found answers that involve .NET 2.0, which I can't use now and C++ which I don't know. Please help me out. Thanks Thank you for the reply. Can you tell me 1. how to write the managed IE DOM wrapper and 2. how to request or grant the permission for the code to work. I would greatly appreciate it. Anhtai ...Show All

• SQL Server Restore SQL Server Express Databases after a Disaster Recovery

  Hello, I would like to restore SQL Server Express and its databases from a tape backup to the same server. This is a disaster recovery senario. I backed up the Master, Model, MSDB and my own test database using SQLCMD scripts. I have no problem restoring these using task manager on the server before the disaster recovery. However, in my real disaster recovery testing, When the server is restored by tape drive (HP one button disaster recovery), I try to run my SQLCMD restore scripts in task manager and I cannot connect to the sql server. Also I cannot connect with Management studio. I have recieved the following error in event viewer. ---------------------------------------------------------------- Event Type: Error Event Sou ...Show All

• Visual Basic Zed Graph - Simple Clear question

  Hi, Has anybody used Zedgraph if so can you tell me if there is a clear graph function, as i am allowing the user to add up to 4 curves and would like to have a clear button to empty the chart so the user can add 4 different charts. Many Thanks, Andy Note: - you can find the zed graph homepage at http://zedgraph.org/wiki/ or just google search zed graph – The page seems to be down at the moment though You will have better luck asking a question about a third party control at the 3rd parties web site.... http://zedgraph.org ...Show All

• Visual Studio Team System IsPostBack Using WebPart

  Hi Can any give me suggestion How to Handle IsPostBack in WebPart SharePoint 2003 i am using UserControl Apply IsPostBack in OnLoad() Event but when i am doing Drag & Drop to WebPart Zone IsPostBack has no Senses, i need Ispostback should check when ever webpart load, Problem Logic or Suggestion is appreciated, warm regards syedhanif You may want to ask your question of the Sharepoint group http://www.microsoft.com/technet/community/newsgroups/server/sharepoint.mspx Thanks ...Show All

• .NET Development RFID Reader Project

  Hello, I'm currently working on a project which involves a serial port RFID Reader. I have connected the Reader to COM2 of my PC and i'm trying to get the signals from the RFID Tags. I'm using Visual C# and SerialPort class. The problem is that i can't read or write to the port. I even tried to write something to the port using port.Writeline("string") and then read it with Readline() but it seems that nothing is written and nothing can be read. When i set the RtsEnable to TRUE the BytesToRead property changed from 0 to 9 no matter what i did and still i couldn't read anything. I also wanted to ask you if you have any code samples to send me or if any of you has written a similar program that works. I need to fix t ...Show All