Select ALL database using vb.net

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How do I make a combobox in Visual Basic where it can display all the database in my server?

and how do i filter it, for example
only the ones with the table "users" are only shown
help pls. and thanks!

Posted 29-Aug-14 14:39pm

charliedev

Updated 29-Aug-14 15:30pm

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[no name] 29-Aug-14 21:13pm

Open the toolbox, drag and drop a combobox control to your form, switch to the code behind, in the event handler of your choice, write some code to query the database server and get a listing of the databases in the server, take the list and add each one to the combobox.

charliedev 29-Aug-14 21:37pm

yea but i need the code bc i dont know how to diplay filtered databases

[no name] 29-Aug-14 22:01pm

Then you should get started writing the code. We are not here to write code for you. You display the filtered database in exactly the same manner as a non-filtered database AND in exactly the same way that you have already been told in your previous "questions".

charliedev 1-Sep-14 2:18am

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OriginalGriff · Answer 1 · 2014-08-30T04:05:00

Try this:

VB

Using con As New SqlConnection(strConnect)
	con.Open()
	Using cmd As New SqlCommand("sp_databases", con)
		cmd.CommandType = CommandType.StoredProcedure
		Dim read As SqlDataReader = cmd.ExecuteReader()
		While read.Read()
			Console.WriteLine(DirectCast(read("DATABASE_NAME"), String))
		End While
	End Using
End Using

All you have to do is sort out getting the info into the combobox.

If you use a DataView as the Combobox DateSource, you should be able to apply filters in the normal way (I haven't tried it with a Combobox, but it works fine with DataGridViews.)

"i have a problem, i dont know how to filter databases according to the tables inside them. Example i only want to show databases with the table "user" inside. How do i do that? thanks"

You will need to query each DB in turn.
Try connecting to the DB and using:

SQL

SELECT TABLE_NAME
FROM INFORMATION_SCHEMA.TABLES
WHERE TABLE_TYPE = 'BASE TABLE'

Alternatively without specifying the DB in the connection:

SQL

USE yourDBName; SELECT name FROM sys.Tables