I' am trying to access to sqldatabe in order to programming data directy without control at this moment. At awinforms forms aplication with visual basic 2010.the Sqldatabase is local and I was trying with dataview but I feel not good, because didn'taccess successful at all
View 2 RepliesI've run into an issue with Access Key in either Visual Basic or C#... also happens whether on my windows 7 64 but laptop or my Windows Vista 32 bit laptop - in Visual Studio 2010 professional... I create an Access Key (for example E&xit)... while the underline under the x shows up in the development area, it does NOT show up when I run the application NOR does it work... for example, press alt-x does not run the code associated with the exit (nor does a break into that code show it gets into that code).When I try it in a menu, it is a little different at first the underline under the access key does not show up but then after I access something by hand, it sometimes shows up and is usable.
View 1 RepliesI only managed make the form always on top. But what I want is when the form is on top, user cannot access the other application in the windows.
For example : Some messagebox won't let users access the other application until the users hit the OK button.
I have some friends who are 'old-school' VB6 database developers and I was telling them about .NET and its features, specifically ADO.NET. In our conversation, they brought up the following reasons why they would rather stick with ADO than move to ADO.NET: The Dataset is disconnected (What if power fails?)
The same amount of code still has to be written The new options of Dataset, BindingSource and TableAdapter seem confusing the same code is written programatically access the Database, all that changes is how that command is laid out. Why ADO.NET is 'better' than ADO with regards to data access when it comes to Windows Forms applications. What does ADO.NET provide that ADO does not? What does it do better than ADO? I'd like examples that do not involve LINQ.
I've got a dictionary<string,string> that I need to access and use on several windows forms. In asp.net, I could store it in Session and use it from any aspx page. How would I do this in forms?
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I've tried this but it's giving me 'System.NullReferenceException':
For Each MyListViewItem As ListViewItem In MyListView.Items
MsgBox(MyListViewItem.SubItems("MyColumn").Text)
Next
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What i want is :
There is one windows app ( made in .NET 3.5, VS2008, C# ) for Windows XP SP2 & SP3
generally users can change there IP or modify their IP Address.
Now,when my apps starts i dont want users to change there IP Address untill my app stops.
I am using VB 2008 & Access 2007 for windows forms application having typed datasets while creating connection to DB vb asks to store connection string so i did it now that i want to know where is the actual path of file where these connection strings are stored. b'cas after runnig a macro in Access Database i lost all these connections from Data Source Configuration Wizard Combo Box & also i am anable to create a new connection to Databases.I have tried to reinstall the entire Visual Studio couple of times .
View 17 RepliesIs there any possibility to access directly from a Windows form created in VB.net a protected Excel file? I mean, that the password for opening xls file to be stored in VB.net Windows form. I also have the same problem for a Microsoft Access protected file.
View 2 Replieshow to insert an image into a database that can be viewed on a webpage? or whatever way there is just to do this thing.I am currently developing a webpage in Web Developer 2008 ASP.NET VB.
View 2 RepliesI am currently developing a webpage, and I want to add date&time to my database whenever there is an entry on the database.
View 2 Replieswhats the difference between making the sqldatabase outside visualstudio and making it within the project what is better for my web project?whats the coonection string if it is made in visualstudio?
View 1 RepliesHow can I retrieve data from sqldatabase to datagrid.
View 1 RepliesHow can i save the optionbutton and checkbox value in sql database?
View 3 Replieswhy I can access System.Windows.Forms.DataVisualization.Charting.Utilities within C#, but not VB?
View 3 RepliesMy boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form. How can I achieve this?
View 2 RepliesMy boss gave me an MS Access application that was developed by our former colleague. He wants me to convert that application to VB.Net Windows form application. I went through the MS Access Application. It contains tables, queries, forms, reports and macros. I could not find the programming (Where is the code written in MS Access?). My boss wants the windows application to be same as the MS Access Application (both in design and logic). I don't how will i develop the windows form.
View 4 RepliesI am trying to use values from form1 in my project, in form2, but Im not sure how to do it. I've tried
txtboxTotal = (Form1.vsbLength * Form1.vsbWidth) * Pattern
But I get: operator '*' is not defined for types 'System.Windows.Forms.VscrollBar' and 'Systems.Windows.Forms.VscrollBar.'
I have the code which checks if there is a selected tab
Private Function GetBrowser() As WebBrowser
If TabControl1.SelectedTab IsNot Nothing Then
For Each c As Control In TabControl1.SelectedTab.Controls
If TypeOf (c) Is WebBrowser Then
Return c
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I have a panel with some controls in it (several textboxes, a slider, 2 buttons, and a small groupbox).. When I click a button, I want all of the textboxes within the panel to be readonly... So I have this code: [code] When I run it though, I get the following error:Unable to cast object of type 'System.Windows.Forms.Button' to type 'System.Windows.Forms.TextBox'.If I remove a button, it moves on to give me the same error but for a label..
View 4 RepliesI have a basic three form application. It doesn't seem to close after navigating through forms. If I were to open the application, and the main form is displayed. If I press the X button, the application closes fine(Goes from processes) If I were to open the application, and then navigate from the main form to another form using me.hide & form1.show, and press the red X on Form1, the application again, closes fine.
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.NET developing and have a simple question, i've been stuck on this for a while and searched many forums first with no solution so i'm posting myself. In VB for excel i've used Screenupdating=false to disable the screen updating however now i'm creating a visual studio 2010 windows forms application and its not showing up as a property. Here's the code i've tried.
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I have the requirement to create an application that has multiple front ends developed using Windows Forms, WPF, ASP and Compact Framework Mobile Forms.I would like to be able to create a series of obejct representing the business logic and have this logic accessible from the various front ends available. My first thought was to use remoting as I'd like to be able to pass the business objects back and forth between client and server but the compact framework doesn't support remoting and also transferring a full framework business object to a compact framework business object doesn't seem possible.My next thought was to use web services but again the passing of business objects seems to be very hard to accomplish. Without doing this I would have to create individual web methods for each business operation.
Finally my next option is to use sockets and write the whole client/server logic within some classes and expose them to the UI/Business layer. My only problem with this is it is not scaleable should the number of clients increase dramatically whereas using remoting or web services I can host the solution via ASP.Net.Does anybody have an ideas on the best way forward for this or even have any input on how they would write an application that required a windows form, wpf, asp website and mobile device GUI all of which want to use the same business logic?
I would like to know if its possible to start up a second windows forms inside the parent form. Ex: A button is pressed and a new form is showed. I would like to keep that new form inside the parent form, and have it not be able to go outside the parent form.
View 2 RepliesI am writing a program for my A-level coursework But for some reason I got this build error this has never occurred to me before, I have no idea why I can't use string for the name of my form.
View 8 Repliesa program and i need to have a button put a file into a folder, i know how the button works i already have it doing some other stuff. i just don't know the code to copy and past it to a folder.
View 1 RepliesWhen I add a new, empty form to my VB.NET VS9 project, the linenherits System.Windows.Forms.Formis missing.What am I doing wrong here?I thought it would be added automatically.I experienced that some thing get weird if this line is not there (Form_Load is not firing, I think).
View 3 RepliesI've successfully saved video files into SQL server as varbinary. Now, my problem is, how can I play those videos in Windows Media Player (embedded in my Windows Forms).
View 1 RepliesI'm porting code that I wrote for use in a Windows Forms application to a Windows Service, but for some reason, the code that worked in the Windows Forms application is now throwing errors in the Service
View 7 RepliesI am making a System Tray Application when i minimize my form its hide itself in the tray but whenever i click on the tray icon my form shows now when my form shows up i would like to disable my Background desktop same as CardSpace when its shows up.
View 1 Replies