C# - Make A Composite Application?
Jun 27, 2012
I'm trying to make a composite application.Lets say there are two regions with a view in each that interact with each other via drag and drop, view A contains a list of tasks that view b (which contains a list of People) doesn't really know about.When I select some tasks in the list from view a and drop it to another list maintained by view b which module should know what happened? does the module that maintains the tasks need to know about the module that maintains the people, or vice-versa? Where should I start?
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May 8, 2012
Create composite and custom grid control in ASP.Net 2008 or above
I need to create composite control . My control like one "div" inside that div one Gridview control.
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Jun 17, 2011
I want to be able to get an instance of a class based on two fields in that class. I was hoping to use something like a dictionary, because I thought indexing would be the best for performance. Should I just use LINQ or go back to a strongly typed dataset? Here's an example of what I'm trying to do[code]...
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Feb 6, 2010
I'm trying to create a composite control that will look like a ComboBox with a TreeView style. I'm new to this topic and I have an urgent need to create such control. I know it's not an easy task but please I need your advice to complete what I already started to build.My approach was to combined a TextBox, button and a treeview into a UserControl and make them work together as one control to achieve the control that I'm looking for (A ComboBox with a Treeview style).
So I started by creating a new windows forms control library project and I added a text box and a button as a starting point. The text box will display the name of the selected node text of the treeview and the button will show the treeview under the text box when the user click on it.
Now I'm facing tow problems with my custom control:First when I drag the custom control to a test form the resizing of the control doesn't work properly even after I used the anchor property of the text box and button controls. If I try to resize it horizontally its working find but it's not vertically.
Second I don't know how and where should I place the treeview control and how I'm going to show it exactly under the text box when the user click on the button and hide it when the user click on one of the treeview nodes.
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Mar 10, 2009
On my custom control I've added a Property 'DisplayMode' that, at run time, does a great job of showing or hiding different sets of the standard controls. But, at design time - no matter what I seem to do, my control shows all of the child controls associated with it
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Jan 11, 2012
Let's say we have a composite web control with a combobox and a textbox. Is it possible to build into the control functionality such that when the text in the textbox changes, it posts back and adds the value as an option in the combobox?
I know that I could add an "onchange" handler to the textbox and make something work with Javascript, but that's not really what I'm looking to do. Is there a way to just put like:
CODE:
In the web control code and it connect to the TextChanged event of the textbox?
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Mar 30, 2010
VB.NET .NET 3.5 I have an aggregate class called Package as part of a shipping system. Package contains another class, BoxType . BoxType contains information about the box used to ship the package, such as length, width, etc. of the Box.
Package has a method called GetShippingRates. This method calls a separate helper class, ShipRater, and passes the Package itself as an argument. ShipRater examines the Package as well as the BoxType, and returns a list of possible shipping rates/methods.
What I would like to do is construct an Interface, IRateable, that would be supplied to the helper class ShipRater. So instead of:
[Code]...
However, ShipRater requires information from both the Package and its aggregate, BoxType. If I write an interface IRateable, then how can I use the BoxType properties to implement part of the Interface?
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Jan 31, 2012
I have a dictionary that I want to access with a key that is the combination of a string (AcctNum) and a date (BalDate).It seems to me the simplest approach is to create the key by simply converting the date to a string and concatenating:MyKey = BalDate.ToString & "|" & AcctNum
I know I also have the option of creating a composite key by writing a separate class and overriding GetHashCode() and Equals() a la this solution. To me, the concatenated string is a simpler, if somewhat less elegant, solution. Am I missing some compelling reason why I should go with the composite key class approach?
This lookup is the crux of the project I am working on, so performance is my main objective (with readability a close second).
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Apr 6, 2011
I have two properties ("FIRST_NAME" and "LAST_NAME") I need to access as a single property (e.g. "FULL_NAME"). Is there a way for me to add a property to my entity model that contains the combine value of FIRST_NAME and LAST_NAME?
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Jul 17, 2009
This should be a simple problem to fix, as it uses the same way I fixed my last problem with FooControl (below).
Basically, I want to add a derived validator I made to this composite control. It works fine but on postback it just disappears in the markup, making me think it's lost its ViewState.
I am probably doing something wrong with instantiating it, but I've tried setting only the ControlToValidate, moving things around, and nothing works.
I've provided some surrounding code to see what's working and then what's not.
Private FooControl As IFooControl
Private Validator As MyValidator
Protected Overrides Sub CreateChildControls()
[Code].....
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May 8, 2012
How to create composite grid. ie , i need all the features of gridview in the Framework 3.5 and above,but also need to include some other functionality to that grid.please suggest me what to do . if possible please share sample code.
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Apr 25, 2012
i have a project where I need to concatenate strings from 4 different tables based on a sequence of numbers. I created a 5th table that holds the number sequence and dictates in what order the strings get appended. I have created primary keys on the tables, but 3 of the tables are composite primary keys. I have written up to where I start referencing the primary keys, but am not sure how I should reference the keys on the actual tables. I saw some examples for creating composite keys from an array which I did. The main questions are did I declare the composite keys correctly, am I creating the composite key reference from the array correctly, and how should I reference it all to append to the stringbuilder variable.
[Code]...
And yes I kn ow it would be easier if I used Strongly Typed Dataset, but this is a clr sql stored procedure and have not found any examples on how to add a .XSD to a stored procedure. The add item option is not available, besides a bunch of typing
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Apr 26, 2010
is it possible to make one application send a task to another application and recieve the result from that secondary app?i made a text editor program and i added a scan feature and i made another app that has ocr capabilities.The scanner ability is in my text editor program, the ocr program doesnt scan you have to input an image into it and it will give text result a few seconds later.the prob is alot of times the ocr code uses sooo much memory and crashes when its incorporated with my text editor, but individually each application works fine and doesnt take too much memory. Memory wont be even an issue if the ocr program is standalone so that when it is done decoding image the application can be made to exit. now here is the question, how do i make my text editor send the image to the ocr program and how do i make my ocr program send the text back to my text editor? is it possible? i mean the only way i know off is creating temp files in a certain folder and having a timer on each program that keeps waiting for temp files. That just seems like pretty lame coding to me i was wondering if there's a better way?
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Dec 5, 2009
I want to make a Hidden Application,my application Block Unwanted software or Application
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Jan 23, 2010
I use SetParent to make an external application a "child" of my Main .Net application. This works fine.What I need to know is why can't I use Me.MDIChildren(0)I thought that using SetParent would increase the number of children by 1, thus allowing me to reference it with the above code, but it shows there are no children in the array.I have been trying, without luck, for 2 days to try to maximize an external app being displayed in my app. I can get it to display, but I would love it if it could Dock to the same size as its container (a panel)
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Dec 14, 2009
I am making a exe application and i am using mysql as my database. So the thing is, when i change to a new computer, i need to change the file path for the database connection string to that computer.
like below:
Dim connectionString As String = "Data Source=----------SQLEXPRESS;Initial Catalog=Flexlink;" & "Integrated Security=SSPI;"
i need to change the data source = --------------- SQLEXPRESS to the computer name that i am using for my project.
May i ask is there any method such that the user dont have to go in to the source code to change the computer's name like those normal installer?
Just install and the application will run according like any exe file that we buy.
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Aug 11, 2009
Okay so basically I want to see if I can make an windows application or just a console application in VB.NET that will verify an MD5 Checksum. I have no idea how to start this out, but I have the ideas of what I'd like to make it.
[Code]...
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Mar 22, 2011
I have been trying to reference Application.ThreadException in my application to make an addhandler, but I also am using imports growl.connector which has a growl.connector.application method. When I create my addhandler:AddHandler Application.ThreadException, AddressOf ThreadExceptionHandler
And I get "ThreadExecption is not an event of 'growl.connector.application'"
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Aug 27, 2010
I'm going to make a Skype application using Visual Basic, I use them "Skype4COM.
Below is a link on the page somewhere in the middle Skype4COM. It is the DLL that I use.
But my question is, how can I in my application that I call you? Not that you're on the phone but if someone phoned you before you've pressed record.
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Jan 7, 2012
I have a TypedDataTable called CamerasDT which has a composite Primary Key of GroupId and CameraId. I want to use TypedDataTable.Rows.Find(key as object) to return a specific row by GroupId and CameraId. I don't seem to be able to find a way to send primary key to the find function.
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Jan 19, 2012
I'm using loop to read data from sql and then make some calculations then save it again to another table but when application loop for 3 or 4 times it's freeze but the job is done but if loop = 10 or more then it is freeze and hangup for long time .i need to learn how to make my application working better and never freeze and make application working with any count for loop without freeze .
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Jan 29, 2010
I'm using VB 2008, and I have a dual core computer.Is it possible to make a code that sends one application or program in 1 core, and other application in the other core?
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Aug 11, 2011
I am trying to build an application on VB.There are two different .txt files.
Example:
ListA.txt
1
[code].....
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Sep 16, 2010
I have this application that deals with a database, adds, deletes, uploads... let's call it: app1 I have created another one app2. in which i deal with 3 tables from a db. and basically i have to set different types of access for different users. like 0 for no access, 1 for read only, 2 for write.but now i have to put these two togeter.in app1 i have to take the windows username: i will do this with windowsIdentity, and see what kind of rights that username has and so to dizable different controls.
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Jun 8, 2012
I have a problem I've been struggeling with for a full week now, and I'm not able to solve it by myself. I've been googeling, and searching in all kind of forums.I have found lots of "this might work", tried it, but no, no success. If anyone have any clue,I'v got, from an external source, lots of classes and functions written in VB that I need to be able to use from a C++ application. My first though was: no problem, I turn the VB code into a dll, and load it from my C++-program. This was though harder than I ever could imagine. My C++-program is not written in Visual Studio, but for simplicity I started with trying to load my VB dll (written in Visual Studio 2010) from a Visual Studio C++ application. This is my code so far:
[Code]...
I looked at the link with the tutorial, but there is a small problem: there are no such thing as "ActiveX DLL" to choose among all the project types. And yes, I do have Visual Studio 2010 Professional (a trial version, but still).
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Nov 9, 2007
How can I make my .net application look more presentable and interesting from a visual point of view?
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Jul 8, 2008
I would like to make an application that will propt the user to enter a serial key in after 10 or 30 days if that is possible also i would allso like to make a keygen tha will work with this program.
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Jan 23, 2012
vb.net applications that runs at the client-side work in unsecured environment, these applications connects to a mysql database server so... it contains the username and the password of the mysql database in the connection-string in the application itself.isn't there any way to digitally sign my applications so the database server only accepts the requests from the trusted applications?I want to this to prevent the hackers from hijacking my database
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Jul 23, 2010
I have build a VB.NET application which uses PHP command line to run some scripts in a folder in the same directory. I do not want the script in PHP directory to be editable. So, I want that folder to be inaccessible by users or only available to my applicaiton.
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Jan 8, 2010
able to start my application right away after the windows.
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