4,911 Posted Topics
 | Is it possible that you are updating an in-memory copy of the database that is not getting saved to the actual database?  |
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| | Depending on the mood I am in at the time, I may or may not delete posts like "what he said" as having zero content. Call it a loose interpretation of a Daniweb rule which states (in part) **Do ensure that all posts contain relevant content and substance**  |
 | Password entropy is usually calculated by log2(x) where x is the number of characters in the pool. For example, a password of length 8 using only upper and lower case characters would be log2(52) * 8 = 45.6 The higher the entropy the better. However, even this number can be …  |
| | Can't be done. What you could do is make a pseudo-button of your own by using a PictureBox. Set the BackColor to Transparent.  |
 | If you can't find a free or reasonably priced library you might want to have a look at [VisiPics](http://www.visipics.info/index.php?title=Main_Page). This is a free application that I found does a pretty good job of comparing images. You can adjust the degree of similarity. |
| | Re: down-vote I would not like anonymous comments. I think if you have something to say then you should be willing to have your name attached to it especially when what you have to say affects the reputation of another user. Having said that I have seen how anonymous voting can be …  |
 | Re: case select Perhaps something like this 'This assumes that only valid selections appear in cboSearchType Dim sql As String = "SELECT * FROM BusinessInfo WHERE " Select Case cboSearchType.Text Case "Accredited Month" sql = sql & AccreditationDate " & " like '" & cboMonths.Text & "%'" Case "Accredited Year" sql = sql … |
| | Re: Filter a lisbox If you start with a form containing lbxWords (a ListBox) and txtFilter (a TextBox) then add the following code Public Class Form1 Private WordList() As String Private Filtered() As String Private Sub Form1_Load(sender As System.Object, e As System.EventArgs) Handles MyBase.Load WordList = Split("abatement abatements abater abaters abates abatic abating abatis … |
| | I've been programming since the 70s and I still haven't created one. |
| | Try For r As Integer = dgvMyGrid.Rows.Count - 1 To 0 Step -1 Dim empty As Boolean = True For Each cell As DataGridViewCell In dgvMyGrid.Rows(r).Cells If Not IsNothing(cell.Value) Then empty = False Exit For End If Next If empty Then dgvMyGrid.Rows.RemoveAt(r) Next You want to delete from the bottom … |
| | Access is more suitable for small, single-user databases. For something of your scale, "thousands of client programs that will modify the database simultaneously" you need something more industrial strength. You need a full blown SQL server. You may be able to get away with the free version of MS SQL … |
| | Why not just use the free version if vb.net? You can create a form and drop all the controls on it. You don't have to write any code to create a mock-up of the GUI.  |
 | I used the same technique as everything else. Practice. The only way to get good at something is to keep doing it. I also had some excellent instructors along the way (and a few really bad ones). |
| | Re: tutorials >I think the moderators of that particular forum, should be allowed in the review process. As far as I know a moderator is not specific to any particular forum. I have moderator "powers" in all forums. I just choose to exercise them in forums that interest me or that I … |
| | Here's one way For r As Integer = 1 To CInt(txtNumRows.Text) dgvMyGrid.Rows.Add(New DataGridViewRow) Next |
| | Sounds like homework questions to me. Try [here](http://goo.gl/XHAvvN). |
 | What have you got so far? |
| | 1. Since I was 18 in 1972 at University 1. Visual Basic since I retired in '08 because it is relatively straightforward but I've always had a thing for APL. Most of my programming over all has been in FORTRAN. 1. Not really, but programming wasn't as complex back then. |
 | My first personal computer was a Commodore 64, followed ASAP by an Amiga 1000. The first computer I ran a program on was an IBM 1620. |
| | How would the website determine if the user is in the appropriate forum? There are some posts that are general enough that they do not belong in a lower tiered forum. The forums are arranged in hierarchies. For example, you could put a post in Hardware and Software Microsoft Windows … |
 | http://www.daniweb.com/ http://www.alternet.org/ http://www.imdb.com/ http://en.wikipedia.org/wiki/Main_Page and for s&g http://www.gocomics.com/arloandjanis http://www.bugmartini.com/ http://www.somethingpositive.net/index.html http://www.smbc-comics.com/ http://xkcd.com/ http://www.jesusandmo.net/ (unfortunately it updates only weekly) I frequently check out books at http://www.fantasticfiction.co.uk/  |
| | I'm not sure I understand what you are asking but if you want to do a case sensitive selection on the database you can do SELECT * FROM Userr WHERE [UserID] COLLATE Latin1_General_CS_AS = 'username' AND [User Password] COLLATE Latin1_General_CS_AS = 'password' If you are only interested in whether the … |
 | Re: Favorite song I'm also big on classical. My favourite at the moment is Krystian Zimerman playing Chopin's Ballade #1 in g minor. You can see/hear it [here](http://www.youtube.com/results?search_query=krystian+zimerman+chopin+ballade+1). The pianist is insanely good. |
| | I had a similar problem. I have lost some hearing in the higher frequencies and was looking for a way to adjust the sound over all applications. I found Equalizer EPO. You can download the 32 bit version [here](https://www.google.ca/url?sa=t&rct=j&q=&esrc=s&source=web&cd=1&cad=rja&ved=0CCYQFjAA&url=http%3A%2F%2Fsourceforge.net%2Fp%2Fequalizerapo%2Fwiki%2F&ei=h3bpUoOIJsiIqQGJ1IG4Cw&usg=AFQjCNHzL2Lv3vB0T9QXRBm6kYmXUVZfSg&bvm=bv.60444564,d.aWM). There is a 64 bit version available as well but you … |
| | Re: Auto Tags If there is no difference between tags and content text when searching, what is the point in duplicating the text via tags? |
| | It wasn't me who downvoted but as a guess, I'd say it was an overly complex solution to a simple problem. In my opinion that didn't justify a downvote so I upvoted to cancel it. |
| | But Americans (and Canadians) eat a lot of beef which requires much more land per pound of protein to produce than other forms of protein so that skews the numbers. Also, what is the definition of "living requirements"? Is it bare minimum to keep alive or comfortably alive? Are we …  |
| | You should be using TRY/CATCH rather than **On Error**. Also, because you haven't included the code for **ExecSQL** or the text of any error message there is no way to offer meaningful suggestions. |
| | Somehow I think we are getting lost in the explanation which is unclear. I can't make heads or tails out of your description. Can you perhaps just give us some sample input and what output you expect to get? I suggest you avoid terms such as "like" because what I … |
| | I posted a rather lengthy tutorial a week or so ago on embedding Windows Media Player in a vb.net app to build a video library. I don't see it in the vb.net tutorial section anymore. Could somebody please look into this and put it back? I wanted to refer a … |
 | You might try rewriting it as a function without the global as in Private Function calculateFees (ByVal intDays As Integer, ByVal decFee As Decimal) As Decimal If intDays <= 3 Then return decFee Else return CDec((intDays - 3) * 1.5 + decFee) End If End Function I'm assuming decFee is … |
| | Who is to say how technology will impact your career. For example, I was a real-time programmer for a major electric utility (generation, transmission and distribution). You may recall a few years back when they had that cold fusion fiasco. As unlikely as it was to be real, *had* it … |
| | In true Microsoft fashion they have made the download process so counterintuitive that your chances of getting what you want is near impossible. Fortunately someone has created a "simple" [12 step process](http://www.istartedsomething.com/20140616/the-12-step-process-to-download-microsoft-sql-server-express-2014/). For yuks, see also [here](http://www.istartedsomething.com/20121216/downloading-sql-express-2012-from-microsoft-com/). And to see how little things have improved see [Bill Gates Chews Out … |
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| | Please start a new thread for this question. |
| | You can replace text by setting the properties **SelectionStart** and **SelectionLength** then replacinig the selected text by assigning the replacement string to **SelectedText**. If you set **SelectionLength** to 0 then the text is inserted at the given point. For example, to insert a string at position 20, do RichTextBox1.SelectionStart = … |
| | Re: vb.net If you have a specific question we'll try to answer it but your question is a little broad for this forum other than to answer in broad terms 1. learn vb.net 1. develop a GUI 1. write your own codecs 1. debug everything However, if all you want to do … |
| | >Do you think I have an obsession or a passion with tech and software? Yes. Yes, I do ;-P There is a fine line between technophilia and technomania. I had a friend who claimed to be a pyrophile. A nudge in the wrong direction however... |
| | Re: error on boot up POST stands for Power On Self Test. If you are getting this message then you may have a hardware problem. Is there a boot option to boot into a diagnostic mode? If not then you may have to go to another computer and see if there is a stand-alone diagnostic …  |
| | Sometimes you want to add a little functionality to an existing class but you don't want to go to the trouble of sub-classing. A technique that you can use is known as **Extending**. For example, I frequently use regular expressions when working with strings. Wouldn't it be nice if strings …  |
| | How about changing dblAvgTotal CalculateTotalAverage(dblMidTerm, dblFinal) to dblAvgTotal = CalculateTotalAverage(dblMidTerm, dblFinal) |
| | Re: 4K file size? My guess is that 4k files would be around 4\*1024 bytes. Seriously though, the size of 8 minutes of 1080p could vary greatly depending on the bitrate, frequency of keyframes, motion, etc. A video with low motion should have higher compression. A video with lots of motion or frequent scene … |
| | Well, here in Canada the doctor does not get paid more for ordering more tests so I suppose the reasons for more tests would be more akin to 1, 2, & 3. |
| | A [security audit](https://opencryptoaudit.org/reports/iSec_Final_Open_Crypto_Audit_Project_TrueCrypt_Security_Assessment.pdf) of the free and Open Source encryption utility, TrueCrypt >"found no evidence of backdoors or otherwise intentionally malicious code in the assessed areas," and that the found vulnerabilities "all appear to be unintentional, introduced as the result of bugs rather than malice." A summary of the results … |
| | Go to **Organize**, then **Folder and Search Options**. In the **Folder Options** dialog box, select the **View** tab. Scroll to the bottom and you will see When Typing into list view o Automatically type into the Search Box o Select the typed item in the view Make sure you have … |
 | Sounds like homework to me. You won't find anyone here to do it for you. |
| | I created an app to view and tag all of my home movie files. To play back the video I embedded Windows Media Player in the form. It also allows me to add comments to videos and search based on the comments. While it is functional, I would prefer to … |
 | Are you looking for free or are you willing to pay? Before retiring I had to coordinate the scheduling of dozens of processes with varying types of triggers. Some were triggered on a time schedule and others were triggered by the appearance of files in folders. I found [adTempus](https://www.arcanadev.com/adtempus/) a … |
| | Re: Reminder Can you be more specific? What is the trigger? Is it based on date/time? Is it based on some particular action in the database? Is the database on a local machine? What kind of database is it? Does it even matter? Do you know how to access the database? Are … |
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