Do you mean to set a default value, or to get a value based on the tab that is selected ?
Please read this if you don't understand the answer I've given you
"also I don't think "TranslateOneToTwoBillion OneHundredAndFortySevenMillion FourHundredAndEightyThreeThousand SixHundredAndFortySeven()" is a very good choice for a function name" - SpacixOne ( offering help to someone who really needed it ) ( spaces added for the benefit of people running at < 1280x1024 )
i'm trying to display progress bar for file conversion of what percentage is completed, but the progress bar wouldn't display for vb.net but works fine for vb6. i'm updating our project from vb6 to vb.net, and i have problem displaying progress bar here is some code snippet.
<ProgressBar1 = New System.Windows.Forms.ProgressBar
It works. It's just that you're using the UI thread to do the file conversion. But, while the thread is busy running the conversion code, that code doesn't give up control of the thread so that the message pump code can run and process all the WM_PAINT messages that are stacking up in the windows message queue.
Move your conversion code to a seperate thread, try the BackgroundWorker class, and you'll be able to update the progressbar without any issues.
I assume you are referring to the MessageBox dialog. The only way to change its appearance is to create a new form that looks like the MessageBox, just with extra controls to manipulate its appearance.
Programming today is a race between software engineers striving to build bigger and better idiot-proof programs, and the Universe trying to produce bigger and better idiots. So far, the Universe is winning.
If you want to change the .EXE icon for an app you didn't write, you'll need a resource editing utility to do it.
If you're talking about changing icon in your own application at compile time, then you just need to go into the Project's Properties (Project menu, projectName Properties) and click on the Application tab. There's an Icon dropdown you can click on and select Browse in that list. You'll be able to pick an .ICO file you want with the appropriate icon image. If you want the greatest flexibilty, make sure your .ICO file has icon sizes in 16x16, 32x32, and 48x48, in both 16 and 256 colors.
i write a query which return rows for selected column.In Addition to Table's column ,i also want to return Serial number of each row. let me explain. Assume i write following query "select Name from table1"
suppose this query return 2 records which value is name1 and name2.Now i want to add s.no. of each row like
i m not talking about Primary field. I just only want to attach "Serial Number" field with each row returned by query.
in primary key field, it is not essential that all records follow sequence because where clause is attach it
Is thisis field in the database table already or something the database needs to generate or what??
sir, this is not a database field. I just want to generate serial number for each row returned by query.
let me explain. suppose i write following query
"select Letter from alphabet"
above query return all rows from alphabet table(but with single column). which is ---
but i want to result in following form without adding any additional field in database'table
so how can i write query to generate this type of result
You can't do this without another field in the database. You MUST add a Primary key column, probably an autonumber, and that will give you your "serial number" for each row. When you execute a database query, unless you specify otherwise, rows are returned in whatever order the database sees fit at the time. There is no guaranteed order, therefor, any "math" you do to assign a serial number, which is going to end up being another column anyway in the DataTable, can be different for each row the next time you run the query.
It doesn't work because Visual Studio can't create an instance of ab abstract type anymore than your code can. For example, when you design a new form, Visual Studio creates an instance of System.Windows.Forms.Form and lets you drop controls on it, right?
Why is it creating an instance of Form instead of your class called Form1?? Because Form1 isn't compiled and doesn't yet exist. The Designer always creates an instance of the base class of the type you want to design. So, in your case, when you try to design a new control based on DashBoardItem, the Designer tries to create an instance of DashBoardItem and can't, because it's MustInherit (abstract).
Read more on why it doesn't work here[^]. There's a followup post on a possible work around here[^]. Just a warning, it's a bunch of work on your part to put this workaround in place. It's even more of a pain to get it to actually work.