I wonder if there is a way to permanently change a constant in a real time.
For example: My software should connect to test.mdb file that resides at c:\software\test\
and i use a connection string that uses path variable which is
Dim path as String = "c:\software\test\"
I want to be able to run my software, and while it's running go let's say to it's settings tab and change the location for test.mdb to d:\another\test\., ie path = "d:\another\test\".
And the next time i run my software it will look for a test.mdb in a new location. I dont want to use any configuration files such as .ini or others, just need one fexecutable file.
Is it possible at all? P.S. VB.NET THANK YOU !
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You can create a file named "app.config"
Something like below
<?xml version="1.0" encoding="utf-8" ?>
<configuration>
<appSettings>
<add key="MyKey" value="MyValue" />
</appSettings>
</configuration>
Then to retrieve it, do something like below
But before that, make sure you add "System.Configuration" as your reference.
Imports System.Configuration
''''''''
''''''''
Dim myKey As String = ConfigurationManager.AppSe
hongjun
if you look on the left in the solution explorer section double click My project you will see a tab called settings.
Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
Dim value As String
value = My.MySettings.Default.test
End Sub
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
My.MySettings.Default.test
My.MySettings.Default.Save
End Sub
really simple and is great I use it for connectionstrings, color/font settings, etc.
Iif you want to see how the connectionstrings work just add a dataset to the project and then a datatable and you will see that is were the connectionstrings get stored.
I hope this helps.
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by: bman9111Posted on 2007-06-23 at 09:00:54ID: 19348207
if you are using .net 2005 you can use the settings.settings file for items like this.
what version you using.
You could also use the .config file and just select it to embed it to the project