Data Query From MySQL Bracket In Fieldname Causing Havoc
Mar 12, 2009
I am trying to write a query on an .aspx webpage connected to an .aspx.vb file to access some parts information on my mysql server. Everything works fine except for one poorly named file, which keeps breaking the query. The fields name (with the table name in front) is
invf12.PRICEE(1STU_M)
Those brackets seem to be the problem. I have tried putting single quotes around them, as in
invf12.' PRICEE(1STU_M)',
I can't do anything about the fieldname. The query in total looks like this:
Protected Sub LookupPart_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles LookupPart.Click
Dim strSQL As String = "SELECT invf12.ITEMCODE as Part, invf02.DESCRIPTION as Description, " + _
"SUM(invf12.QUANTITYONHAND - invf12.QUANTITYRESERVED) as Available, invf12.PRICEE(1STU_M) as Price" + vbCrLf + _
"FROM invf12, invf02" + vbCrLf + _
[Code] .....
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Feb 2, 2010
With vb.net 2008 exp + MySQL 5.0
i am unable to get the data from a query / SP created in the database.
kindly have some patience to teach me what basically makes difference in extracting data from a table directly and from a QUERY / SP[code]....
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Apr 21, 2009
I am having a problem regarding to Importing file from excel to listview. Actually my problem is that my program will let the user define what database he/she want. I know already how to load on my listview from .txt, access, ms sqlserver, but my problem is the user want to open from excel file. Base from his data, the columns contained Contact, address, age,name and only in sheet1. My problem now is that the user want to call his/her excel act like a database. The tablename will be Sheet1 and if he/she want to display the age and name column he/she can view by calling the its columnname. The columname will act as a fieldname. How can I do this upon loading all of this to listview. I have here an example on how i load data from .txt(csv) format but i need an excel on how to load data coming from excel.[code]...
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Jan 21, 2012
how to input data in mysql, different tables with one query?is it possible to do in gridview in vb.net 2008?
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Nov 15, 2011
this is the code for my save button
Dim iCount As Integer
Dim iLoop As Integer
Dim query3 As New MySqlCommand
[Code]....
every time i hit save, there is no error but it does not save on my database.
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Nov 15, 2011
here is my code
Dim lvitem
Dim iCount As Integer
Dim iLoop As Integer
[code].....
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Jan 24, 2011
I have a basic calendar schedule i want to loop through and then do some checks. My first data reader works fine. But as soon as i put in the second data reader it does not finish.Here is my code
Dim mycommand As New MySqlCommand
Dim mycommand2 As New MySqlCommand
Dim myData As New DataTable[code].....
Basically the above code looks up distinct calendar entries in the database.i then loop through the entries and put the items in a list view.The code above will list about 1600 rows.in the above code if i uncomment the 2 lines the system will break It will on display one line of code. What im trying to do in the second query is to see if there are double bookings in the database.
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Nov 17, 2011
Dim lvitem As Object
Dim iCount As Integer
Dim iLoop As Integer
[code]....
That is my code. message box show up but the record is not saved in my database?
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Nov 2, 2010
I'm currently testing an application that I've just finished developing and i seem to have a memory leak problem that i can't figure out. If i left open Windows Task Manager i can see that the process WMIService.exe is constantly taking more and more
memory. Starting from 40 000K, it was at 590 000K after 5 days.I was able to figure out which part of the application is causing me problem. So i've made a smaller application to figure out the problem but i just can't find the problem. Here is the code:
Private Sub WmiStartToolStripMenuItem_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles WmiStartToolStripMenuItem.Click<br/>
LaunchWMI()<br/>
End Sub<br/>
[code]....
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Apr 7, 2009
I need to filter out characters like /?-^%{}[];$=*`#|&@'"<>()+,. I need replace this with empty string if it is there in the query string. I am using this in ASP pages.
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Jun 2, 2009
I have the following query that executes when my form loads. It's the rowsource for my combo box. The query is fine and populates the combo perfect, however, when i click into the combo box I cannot click out of it or even close the form. I have tried taking out the line of code that fills the form via table adapter on load and it works fine (opening the form unbound by the main table). Has anyone run into this before? I have another combo box on the form setup the exact same way and this is not happening. I've experimented with different datatypes etc....
code to populate combo box:
Public Shared Function LoadCallSource() As String
Dim sConnectionString As String = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:Documents and Settingsdiw07My DocumentsDaily Backupsphone memo backend.mdb"
[code]....
If I take out the line
Me.MemoTableAdapter.Fill(Me.Table_Memo.Tables("Memo"), intMemoID)
The Combo boxes do not act up or "Lock"
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Mar 21, 2011
I have a query from within my vb.net code which searchs for a record by date. The date being entered via the code is in format dd/mm/yyyy, i need to search in the database using yyyy/mm/dd? Ideally i thought there may just be a function within MySQL which will convert this. If not in vb.net to convert the string 01/01/2011 to 2011/01/01?
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Feb 9, 2012
I've built a basic editor which have code auto-completion feature and also shows parameter list. Now I want to add highlight matching bracket feature. I've no idea on how to do this !
Update:I know some basic algorithm to find the matching bracket, but don't know how to highlight it ! [to change the color or making it bold of the matching bracket]. I'm using multi-line textbox for this issue.
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Feb 6, 2011
I want a button that when you click at it, It searchs for a line that has brackets that are'nt closed, and then ighlights the error.Like, I have; So the (Dog Which should be for example (Dog). Then, I want it to highlight it so the user can see his error, and show a notifyicon on it.
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Aug 27, 2009
[code]...
this code is populating records instead of the Fieldname.
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Jan 31, 2011
I'm trying to add a row grouping row to my data-bound gridview. It works fine on the first response, but at the postback i got the "Failed to load viewstate" error.There is the code for the GridView's RowDataBound event:
Private Sub AddGroupingRow(ByRef eRow As GridViewRow, ByVal Css As String, ByVal ColSpan As Integer, ByVal Txt As String)
Dim cell As New TableCell()
[code].....
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May 15, 2009
Am a bit confused on a basic select statement.Select Fieldname from Tablename Where FieldLink ='1007'
Nothing special.Now I pass into a sub that populates a combobox for me, but I get an error message - Index was outside the bounds of the array. This happens on the line when trying to add the data to the combobox But, if I change it to
Select * from Tablename where FieldLink = '1007' it will work fine, but returning the wrong field data.
Am I missing something. Procedure below that I using to populate the combobox
[Code]...
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May 3, 2011
If I run a MySQL query at the same time I have a timer going, the timer lags, even though the query is on a seperate form. My computer has 8GB of RAM, so I doubt that that's the issue. Does VB stop the timer to run the query intentionally? Is there a way to prevent the timer from stopping/ lagging?
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May 2, 2011
I'm trying to run a MySQL Query, but I keep getting a syntax error for this.[code]...
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Sep 8, 2010
I created a new project. I copied files from the original VS 2008 project into the new VS 2010 an used "include" in VS 2010.I get an error saying "Error 108 Maximum number of errors has been exceeded."
It seems that EVERY field in the webformsuser-controlsASCX's has the error message "fieldName' is not a member of".I tried a delete the contents of the ASCX and ASCX.vb for a specific ASCX. Compiled and that page had no errors (although the other pages did). Copied back the contents ASCX and compiled (although the other pages did). That page had no errors. Added back the code-behind in the ASCX.vb and compiled. Same error.'fieldName' is not a member of They fieldName can be anything. Textboxes, hiddens, checkboxes, etc.
what am I doing wrong? I have spent hours on this I am hoping I am just missing something simple.
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Feb 5, 2012
My problem is, when I query by a usual ID, like number with no segments = 1234567890, it works nicely.
But I need to query by some kind of segmented values or ID as = 123-4567-890, when I try by 123-4567-890 this id it does not query anything in mysql although in the database this 123-4567-890 ID is present.
So what is the possible solution to search by segmented value in mysql in VB.NET Here is below, my trying codes in vb
[Code]...
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Oct 9, 2009
So I'm working with a mysql database, and I already have some queries down. I have to make a windows application form in vb.net that can display the results of these queries in a dataGridView.Lets say I'm working with frm1, and i have datagrid1 which will be filled using the query "select * from xyz" when btn1 is clicked.Can someone please take me through the right steps to do that? References needed, connections to be made, etc. I did look through online materials, but they are mostly way too long and not dataGridView specific
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Oct 21, 2009
I am trying to to an insert query on my MySql db using VS 2008/VB. I have this query: Insert into allservices StartDate....) values ('" & Me.datesched.Value & "', ....) When I use the single and double quotes, as it is above , I get this error: Quote: Incorrect date value '21/10/2009' for column StartDate at row 1
when I remove the single quotes and have only the double ones I get a completely different thing. The date inserted to the database is 01/01/0001. Even if my datetimepicker has a min and max date. Also if someone has any good links on using mysql with vb.net
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Apr 23, 2009
i am using MySql with vb.net to insert some data in a MySql table and i am facing a problem with encoding.When i try to insert Greek characters the characters in the database are saved as. I made a research in net and found that a mysql query SET NAMES 'utf8'. Solves the problem. I made an execute command but doesnt work.
[Code]...
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Jun 22, 2010
I am using VB to query a MySQl database and populate an Excel spreadsheet. All is working well, but now I would like to start distributing the spreadsheet shroughout the company and cannot protect it.If I protect the spreadsheet the VB cannot add the MySQL data, so I added an unprotect line at the start of the code. That works well, but now the sheet is
'Unprotect all sheets
Dim WSheet As Worksheet
For Each WSheet In Worksheets
[code]....
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Jul 13, 2009
I'm trying to write my very first "serious" program using a mysql database. I use the mysql connecter dll to connect with my database. I have a subject and a visit table. I can select a subject and I can get all the visits for all subjects in a list box with:
[Code]...
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Mar 11, 2010
I am new in VB.NET. Can any tell me how a richtextbox query MySQL table. i.e select * from table test where name= 'Bowser' then the richtextbox will display the results.
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May 17, 2012
I'm just wondering if it's possibe to get the results from a query and then assign the results to a variable. So I will run a query which will return the names of the tables stored in the database, then I want them to be stored in a variable. So it would be something along the lines of:
Dim strFrom AS String = "FROM "
strQuery = "SELECT * FROM information_schema.TABLES WHERE TABLE_SCHEMA = 'Database1'"
con.Open()
[Code]....
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Mar 15, 2012
I am finding it exceptionally difficult to pass an sql query result (string) into a variable.No matter what I try, I can't seem to get anything but boolean output from my reader function.I need to obtain staff "account type" from my staff table and then define that account type in a variable.
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Sep 6, 2011
I am getting a syntax error for the code below.I am trying to create a user in the mysql database and add their information to a datagrid control all in one button click using two statements; one to create the actual user, and one to add the user and their additional information to a table on the database and then refresh the datasource which will display the new user's information in the datagrid control.
If anyone knows where i went wrong please feel free to critique my code and let me know; or simply offer more efficient alternatives to what im hoping to achieve.
For those of you that must know, i am running the latest version of MySql server, MySql Workbench, and Visual Basic 2010 Express on a windows 7 based laptop. I'm writing this program in VB.net.
[Code]...
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