Check File Size Before Save In MySQL?
Jun 4, 2011
I use Visual studio 2008 I use MySQL 5.1 I have created een database (test) table (table1 ) with field (Images) Data Type mediumblob size The maximum length of mediumblob is 16777215 (2^24 - 1) characters
I want to Check file size before save in MySQL table1.I want to avoid getting an error message when the image is too large for the mediumblobb field I now use the following code Dim conn As New MySqlConnection Dim cmd As New MySqlCommand
[Code]...
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Mar 16, 2009
i just want to ask how can i save the file location or directory of a file in mysql without deleting its slashes...i tried to save it directly.. for example: the original directory is c:folderimg.jpg and when i checked it on mysql it is save as c:folderimg.jpg
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Feb 26, 2011
Check file size and take backup and re-create file? I am using this function[code]...
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Nov 7, 2011
I have developed a system to update various programs. I put the programs updated into a particular folder of my site and Users can launch their update program to download and update their application.
The user interface has two progress bar, one for the single program in download and the second for the total download.
For calculating the total amount of bytes for the second progress bar I need to know the dimension in bytes of programs and files to be downloaded before start downloading. See the attached code.
For that I read, in remote mode, the size of all the files checked and I obtain the total amount of bytes.
All works fine with various type of files (.EXE - .DOC - .JPG - .TXT etc).
The problem arises with the Crystal Report file (.RPT).
The error 404 occurs but the file exists, the server WEB is active and the other files of the list are summed. If I compress the same file in .ZIP all works.[code]...
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Oct 2, 2011
I was wondering if it would be possible to check the file size of a .exe on a website and see if it's greater than or less than the program running it?
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Aug 29, 2010
I have a mySQL table(IMP_SCANS) holding the file, it's name and size for every document:
scan_1 blob
description varchar
filesize int
doc_no varchar
doc_date date
I managed to insert a file to the table. Now I need to save the file to disk.
So I have the code:
Dim conn As New MySqlConnection
Dim cmd As New MySqlCommand
Dim myData As MySqlDataReader
Dim SQL As String
Dim FileSize As UInt32
Dim fs As FileStream
[CODE]............
I all works fine up to the line: myData.GetBytes(myData.GetOrdinal("scan_1"), 0, rawData, 0, filesize) Where it says "Object reference not set to an instance of an object". I cannot figure out why I receive this error.
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Aug 12, 2009
i have a program in vb.net and my program will upload any type of file to my database, e.g common ext. to upload (.doc.xls) Im using mysql as database?
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Jul 10, 2009
I got no clue how I can check the file size of some file. I would like to be able to determine the size of example. "C: estfile.txt". How can I do this in VB08?
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Dec 22, 2011
I have the login form glitch figured out, and now I'm wanting to make a system within the login form's code to check to see if the characters save file exists...
I have the save, load, and test load functions here as follows, and I want to figure out a way to make something test to see if both the character name and the password match a file and or see if they actually exist in that combination.[code]...
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Feb 21, 2012
How do i exactly check internet connection speed.I have searched around google and found out a method w/c will Download a file like 1mb size, then it will calculate the speed.
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Jan 22, 2009
If sqlquery = "Select admin FROM userlist = True" Then
Form2.Show()
Else
Form1.Show()
End If
My login script works its checking if admin from userlist = true is what i can't seem to get working.
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Jun 2, 2011
1- How can I check the size of a variable? Size in bytes, not length. (;
2- What data can be stored into byte variables? And what the maxium size of the variable?
3- How do I store data inside a byte variable?
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Feb 1, 2010
how to check the of image size if he strored in DB and Dispay In the PictureBox
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Oct 28, 2009
How can i check if a value exists in mysql lets say if user: "Nick" exists."SELECT CHECKIFEXISTS (Value) FROM..." ???
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Jan 15, 2012
You have an error in your SQL syntax; check the manual that corresponds to your MySQL server version for the right syntax to use near and I don't know how does this happen because whenever I check the SQL that I have made including the inserted data, it shows no error.
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May 7, 2012
I want to now how to check if a database exists in MySQl Server from Vb2010.PBL (Visual Studio 2010 Professional, Win 7 64 bit Ultimate)
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Feb 13, 2010
Set picturebox size to size of image file?
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May 13, 2011
Saving BLOB to mysql database using VB.net windows base application
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Apr 16, 2009
I'm reading in an image (jpg) using the code below and I need to check that the image is no bigger than 150 pixels by 150 pixels and is less than 25k, how should I do this?
PictureBox2.Image = Image.FromFile(.FileName)
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Sep 16, 2009
I have a form that starts at a specific point (the right side of the left screen on an extended desktop). I am trying to work with users with different resolution. Insteadof changing the resolution to match the application, I want to try and get the size of the desktop (1280 x 2 for an extended desktop, 800 x 2 for a different resolution) and set the form to the same point... the inside (right side) of the left screen on an extended desktop. Is there a way to tell how long the desktop is from left to right and top to bottom?
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Jul 20, 2009
Is it possible for Forms to check for certain entries in an online mysql database and to create new ones? (login/registration)
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Feb 12, 2011
i m using admin levels for a program it uses a Mysql database i now if u use a local db that u can use a dataset but how to do it when u have to Connect to a Mysql and check if the colum admin = 1 ?[code]......
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Apr 30, 2010
I've got a vb app that writes data to a remote mysql database.
When I run the app on a client that does not have the mysql connector it crashes (obviously)
How do I programatically check if the connector is installed on the client and throw up a nice error advising to install it - instead of the unhandled exception error - could not load mysql.data etc error?
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May 30, 2010
I have googled, but i cant find anything useful about saving changes done in a PropertyGrid. i only figured out that i'm going to use xml. Here is how to save the size of the form.
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Jan 28, 2012
It is possible to automatic receive sms and save it directly to mysql database using terminal in vb.net?
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Mar 10, 2011
below is the value for my date when it is saved. my problem is when i save the null value ..error says argument prompt cannot be converted to string..
[Code]...
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Sep 7, 2010
I am trying to save a date to a mysql database and usually the only format permited to be saved in the table is YYYY-MM-DD
On the form the datetime picker is formated like this MM-DD-YYYY
The thing is i am using dataset created by wizard to save the data, what should i do to be able to format this for save and read because it is giving me errors.
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Jun 11, 2011
I'am using vb.net and MySQL as database. How do I save the image path to mysql database. So later when the customer list form when I select a customer and so appear on the customer edit form automatically direct the picture appears too
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Sep 3, 2011
I am using this code which I am checking with the form width size that if they are greater than 672, then do something....
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If Me.Size.Width >= 672 Then
MessageBox.Show("the form size is greater than 672")
Else
[code]...
When the width size is no greater than 672, the messagebox will display that it says "the form size is greater than 672" which it sound didn't looks right for me. What I am trying to do is to check the width size that if they are greater than 672 then display the messagebox that says "the form size is greater than 672", otherwise if the width size is no greater than 672 which is equal, then display the messagebox that says "the form size is no greater than 672".
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Apr 13, 2009
I need a routine that will check the size of a folder and all subfolders then display the results in MB. nyone has a routine that can do this?
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