FalconDEW

I need a lot of access to the data... but the way I'm currently doing it is reading in all the data from the text files upon launch... and then saving back out to the files either when the user requests it, or when the program exits. Because it's just a bunch of text info, the save/load works instantaneously. I can't imagine the program ever really storing enough data to require real-time save/load.

It seems like I can never find good enough advice that is specific to my needs - even though the internet is full of db examples. :( I have a small windows application written in vb.net that I am planning on commercially distributing soon. However, all of my data storage currently exists in encrypted text files. Prior to distrubition, I would like to re-write my data storage to be a bit more "professional" and give me more flexibility down the road. I would like a db solution that is simple and free. I do not have a lot of complex data I'm storing - just contact information on users, etc. I want the db to be completely self-contained within the program... i.e. I want it to work just like any other stand alone program that stores data. Could anybody recommend a good solution for me to use, as well as some advice on where I could look to get started on implementing this (i.e. a tutorial, etc). I am a pretty solid programmer... I'm just a complete newbie when it comes to databases. Any help / advice would be great! Thanks!! -Falcon

Thanks for the advice - I really appreciate it. With regards to your suggestion to keep everything in a class... I've written a few classes for specific 'helper' code I've made. If I were to take everything else out an break them into classes... how would I handle loading my form? Would I create a 'sub main' function and load it on app start? I have never made a visual basic app like that, but I've see examples here and there. If you have any quick 'best practice' thoughts on how to do that, I would really apprectiate it. I have a background in programming - so I can pick up and run with whatever you put down. (I'm just not a VB pro yet... haha) Thanks! -Falcon

I have a single form app I'm working on - and I'd like to have 2 differen't layouts of controls, etc. that the user can switch between. This would include font changes, size/location changes, etc, etc. What's the easiest way for me to go about doing this? At first I thought I could make a copy of my original form, adjust everything accordingly, and then somehow swap out to that form when the user selected the different layout - but I'm not sure that's possible since the main form contains all the code for the program, and all of the controls between the two forms would have to have the same name for the code to work properly. As always - thanks for the help! -Falcon

Heh - don't you guys ever just want to keep your programs nice and light? I'm just trying to write a simple program - and while I need to store data... and more recently, to share it... I'm nervous that adding an actual database to my program is going to make it too fat.

I have a standalone application that I save data / settings out to simple text files for storage. I am now looking into trying to create a simple form of networking for my program so that multiple people can share the same data. Can anybody point me in the right direction regarding what technology / solution I should look into for doing this? The only real catch is that the data I write out to a text file is similar to 'records' in a database... so I'm worried that in sharing the file between multiple machines it would be difficult to keep the data consistent. Any tips/pointers would be appreciated. Thanks! -Falcon

Yeah - you're right. I actually figured out my problem too. I was using 2 different forms and forgot to make the constructor between the forms... so every time I tried to access a variable on the original form it threw the error about object referencing. So - my problem is fixed! Thanks!

Sure This is a quick example of what will cause the problem - though slightly diferrent than what I was explaining above. The problem I'm having is simply how to get a string referenced correctly so it can be put into a function that requires an 'Object' as input? Dim cmbExample As ComboBox cmbExample.Items.Add("Test") -Falcon

Ok - please forgive me for this dumb question, but I need help with some basic VB.Net sytax. I want to make use of the combo box .contains method. The method uses "value as object" as it's input. I have a string variable that I want to pass into the method so I can see if my string is contained within the combo box. However, the method keeps generating the "Object reference not set to an instance of an object". How can I reference the string variable correctly? I've tried creating a new object and setting it equal to the string - but I know there is just something stupid I'm missing with my sytax. :mad: -Falcon

Can anybody help point me in the right direction regarding using different forms and buttons for my VB.net app? Ideally - after seeing some of the new windows UI in the new office products - I would like to use that cool blue look to the form with the cartoony-like toolbar buttons. Are these types of forms/toolbar graphics available to use and publish in apps? If not - how about designing my own forms and buttons? Thanks, -Falcon

I am using the IE web browser control in my app - and I'm exectuting a print command using ExecWB as follows: webBrowser.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_PROMPTUSER) Is there a good way to tell when the print dialog that appears is closed, i.e. user hits 'ok' or 'cancel'? The ExecWB function doesn't produce any value, so I can't find a way to hook into the dialog result. Additionally I've thought about running a loop to wait for my program window to return to focus, but that's not solid since it would trigger if the user accidentally clicked back on the program window prior to selecting anything in the print dialog. Any help would be appreciated! Thanks! -Falcon

No - it is a regular Visual Basic .net application. The quote you posted from Microsoft actually answers my question - it appears that it's just not possible to do programmatically. So that leaves me with the solution I previously settled on - modifying the registry myself and then changing it back after I'm finished printing. I assume modifying the registry is going to retrict my program only to users who have access to the registry. Unless the "current user" segment of the registry can always be modified regarless of local machine access rights? I may have to research / experiement with that. Thanks for the help!

I have the IE web control in my app - and I'm using the EXECWB command to print the current page. However, I'm trying to remove the header / footer that is automatically placed on the page. The only real way I've found to do this so far is by modifying the registry. I'm concerned that my method for doing this will restrict my program if being used by a person with restricted access to a machine (i.e. can't write to the registery). Any thoughts on whether or not this method is a bad/sloppy way of doing this, or if there is a better/cleaner method? Let me know! Dim IERegKey As RegistryKey Dim header, footer As String IERegKey = Registry.CurrentUser.OpenSubKey("Software\\Microsoft\\Internet Explorer\\PageSetup", True) footer = RegValue.GetValue("footer", 0) header = RegValue.GetValue("header", 0) IERegKey.SetValue("footer", "") IERegKey.SetValue("header", "") AxWebBrowser1.ExecWB(SHDocVw.OLECMDID.OLECMDID_PRINT, SHDocVw.OLECMDEXECOPT.OLECMDEXECOPT_DODEFAULT) ' Reset the values after printing is completed 'IERegKey.SetValue("footer", footer) 'IERegKey.SetValue("header", header) -Falcon

Thanks! Adding <body oncontextmenu="return false;"> to my html file worked like a charm. -Falcon

I've researched this pretty extensively - and I haven't been able to find a good solution. Is it possible to disable the context menu for the IE web browser control? I've tried: webBrowser.ContextMenu = New ContextMenu() ...which didn't work. I've also seen solutions to actually disable the context menu in the registry. I was looking for a more 'targeted' solution to just disable the menu for the browser within my program. Any ideas? -Falcon