No Error But No Data Retrieved As Well?
Jun 21, 2012I tried the following code which doesn't throw an error but it doesn't show as well in textboxes:
Try
cnobj = con.cn
cmd.Connection = cnobj
[code].....
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.NET Reflector - Retrieved Code Of My Project EXE File - Error
Jun 18, 2012Recently I retrieved code of my project EXE file. And it was almost same with 100s of errors. So my question is Is career in .NET is safe? And is our code safe? Can this be done with other languages?
View 3 RepliesRetrieved Data In Excel Sheet?
Jun 11, 2011I retrieved data from access in vb10 between two dates and here is the code for dat:
Imports System.Data.OleDb
Public Class Form4
Dim con As OleDbConnection
[code].....
Using Multiple Rows Of Data Retrieved From Database
Jan 4, 2012I am trying to select multiples rows from a database table and insert the text into several "label" controls. For example, if the database search returns 5 results. then insert the first row's text into label 1, the second row's text into label 2, and so on. The number of rows will be variable. I was thinking of a while statement. I am having a problem understanding how to even seperate multiple rows from a query in VB. Would using an array for the query results be the right way to go? row one would be row(0), row two's text would be row(1), etc.
View 6 RepliesRetrieved From The Datafile?
Nov 11, 2010so im trying to do this project, and it gives me a a data file, and asks me to use stream reader to put it in the combobox, and when i click the selected items from the combo box, it fills in the textbox's with other information i retrieved from the datafile...Does anybody know the solution?? heres what i have so far(option strict must be on) Private Sub Form1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
[Code]...
this gets all the Item names from the data file to appear on the combobox... now if i knew how to get the other information to appear in the textbox's when i clicked on it,
How UI Items Retrieved From List
May 5, 2012I have this list (Just a typical .net list) and I am adding a bunch of UI Items into it, the list is then taken for a Sub which goes through it with .getenumarator and While loop. Now the question is how are my items retrieved from this list?
View 2 RepliesCheck If BIT Retrieved From DB Is True Or False?
Aug 4, 2011I'm trying to check if a bit retrieved from database is true or false but i have always the error IndexOutOfRangeException no matter how i get the value.
[Code]...
Read Values Set In A String That's Retrieved From The Web?
Jun 10, 2011I would like to read values set in a string that's retrieved from the Web, I've already got the string in a string called Webdata.The string is like so...
"Info" {
"Name" {
"Name1""Value1"
[code]....
I need to set Value1, Value2, Value3 as strings that I can use.
Store Retrieved DB Values In Variables?
May 31, 2010I have a database in my app which loads and displays some information on a form by binding the Comboboxes and Textboxes. However, I need to get some of the other values from the database for calculations before they are displayed on the form and I can't seem to find out how to do this.I could bind a couple of Textboxes to the database and then use those values to calculate, but it doesn't seem like a very efficient way of doing things.The dataset is created using the wizard and the controls are linked in the UI.
Please bear with me, I'm still a noob.
Cannot Store Retrieved Values From Database To Array
Mar 21, 2011is that instead of receiving data from one row and assigning it to the same array Im receiving data from multiple rows, but the information is the same because its from the same one column from the database. The error I keep getting is 'index out of bounds of array'
here is the code
What it does is it loops through once and retrieves the first value from the db then it throw the exception when it goes to retrieve the second value.
Dim qBkNum As String = "SELECT BookingNum FROM Bookings WHERE BookingID = '1'"
Dim bkNum(5) As String
Try
[Code].....
Increase The Size Of Runtime Retrieved Images?
Jan 23, 2010I am retrieving Images in a Picture Box at runtime using the following code.
Public Class Form1
Dim myDir As String = "C:Users rujadeDesktop" '-- my folder for images
Dim x, y As Single ' the coordinates of the 'next' image to add
Dim pic As Image
[code]....
I wanted to add more functionality to allow user to increase the size of images that have been retrieved in the Picture Box. How to do so?
Reflection - .Net How Does One Call A Function Name Retrieved From A Table
Sep 11, 2009In VB.Net how does one call a Parameterised function name retrieved from a table?
My Parameterised Function Name is below
procTextToDBTemp(Application.StartupPath & "" & strFileName)
from above function i Stored procTextToDBTemp into the SQL Table How can call that function in the Vb.net How can i do that?
Resize Images Retrieved From MySQL Database?
Dec 13, 2011I'm using VS 2010 and MySQL 5.5. I've got a data grid view displaying the results of queries entered by the user, shown below. It works; the trouble is that if there's an image in the results, you'll only see a cell-sized very long thin strip of it.
So I want to a) resize any images to a reasonable thumbnail height (say, 100 pixels, naturally maintaining aspect ratio) when displaying them, and b) resize the row to fit them.[code]...
Save A Retrieved Column From A Datareader Into An Array?
Mar 17, 2011I would like to retrieve a single column of about 800 rows in a table and save these values in an array so as to reference them later on. How can I do it? I tried:
[code]...
And it didn't work. The col1 is of type Int64 and so is the array prev_ob(). Please let me know how I can save it to an array.
Save To NotePad - Can Be Retrieved After A Program Closes
Mar 4, 2010how you would go about saving information(username, password, security questions) in a notepad, so it can be retrieved after a program closes. i'm making a log in program in my class, but we haven't done this, so when the program closes, everything is gone. rather annoying, to have to make a accounts each time i'm testing it.
View 6 RepliesSetting The DataContext On An Entity Instance After It's Retrieved?
Apr 14, 2011I'm trying to find a way to have the DataContext available from within Entities.
I want to do something like this:
partial public class MyEntity
public DataContext as MyDataContext
private sub OnLoaded()
[Code]....
Use Retrieved Table Values As Object Names?
May 2, 2012I've Created a Table in my Database "T_OPTIONS"
my table looks like this.[code]...
Written Files In Bin Folder When An Image Is Retrieved?
Mar 12, 2011i have this code which i am using to retrieve image stored in image data type from sql database into a picture box.This code works well but i have just realize something which will not help me if left unattended.When ever i retrieve an image it write some file with a numeric name into my bin folder.I do not know how and the importance of that file written there. Even though it work perfectly for me.It means that if i am to retreive about 500 photograph within an hour, then i will get chunck of these file in my bin folder with will affect me because it take some space.please help me fix this problem
This is the code
Dim barrImg() As Byte
Dim cmdSelect As New SqlCommand("select Photograph from Personal where MyID=@ID", connect)
[Code].....
Setting Captions Of All Labels Retrieved From Excel Sheet
Apr 22, 2010I have 20 labels on my Excel VBA user form. I have named them as lbl1, lb2,..... lbl20. I need to set the caption of all the labels retrieving from the excel sheet. for e.g.,
Dim objthis as object
Set objthis=thisworkbook.sheets(1)
lbl1.caption=objthis.cells(1,1)
lbl2.caption=objthis.cells(2,1)
.
. so on till
lbl20.caption=objthis.cells(20,1)
I felt this was crazy to write 20 lines of code for just captioning labels. If I can write it this way
For i = 1 to 20
lbl & i = objthis.cells(i,1)
next
I know this is incorrect and wont work. May be I am near to finding out the approach or may be its not possible.
Show An Image In Picturebox Retrieved From Access Database?
Mar 13, 2010I have following code retrieving image from access database (OLE object)and assigning it to pic ctrl.
Dim bite() As Byte = CType(dg1.SelectedRows(0).DataGridView("subdivisionimage", dg.SelectedRows (0).Index).Value, Byte())
[Code].....
Does An Object Retrieved From A List Get A Copy Of That Object Or A Reference To It
Feb 1, 2012In VB.net, when I retrieve a value from a list do I get a copy of that value or a reference to it?
dim blah as someObject
dim listOfBlahs as list(of someObject)
listOfBlah.add(new someObject(1))
[Code]....
Open/ Modify Excel Through ADO.net - Error: System.Data.Odbc.OdbcException: ERROR [42000]
Jun 22, 2010I'm writing an application that imports and tidy up address data into a cleaned, deduped excel workbook ordered in rows with each column as an address field. One of the issues I've ran into is that we sometimes get a workbook where the multiple address fields are held in a single cell with line breaks. I've written code to extract all of this data out of the excel sheet in to a dataset with each sheet as a table and the address fields contained within. I now want to create a new Excel workbook from this data with the address fields in Row and columns the problem I have is I can Open/create the Workbook but when I try to insert a new Sheet (Table) I get an error saying the Workbook is read only....
Private Sub MakeSimpleXL(ByRef DsTemp As DataSet)
Dim dsTable As Data.DataTable
Dim tblName As String
Dim dsRow As Data.DataRow
[CODE]...
Here is the error: System.Data.Odbc.OdbcException: ERROR [42000] [Microsoft][ODBC Excel Driver] Cannot modify the design of table '3 _ 10$'. It is in a read-only database. at System.Data.Odbc.OdbcConnection.HandleError(OdbcHandle hrHandle, RetCode retcode) at System.Data.Odbc.OdbcCommand.ExecuteReaderObject(CommandBehavior behavior, String
[CODE]...
It looks to me like it is trying to create the table (Sheet) but has the workbook opened as read only....
Error - System.Data.SqlTypes.SqlNullValueException: Data Is Null
Jun 22, 2010I can't get past this error in my loop through the data reader specifically dr(12). I tried adding .To String but that doesn't seem to work either. Can someone help me with what need to do so it can read even if there is a Null value. My code is below:
While objDataReader.Read()
'Set up DataRow object
Dim dr As DataRow = DataReaderTable.NewRow
[code].....
Error Prompted "Error Converting Data Type Varchar To Numeric"?
May 4, 2010I have this code which populated my form;
Private Sub populateprojdetails()
Dim cmd As New SqlCommand
Dim conn As SqlConnection = GetDbConnection()[code]....
The Error I receive is "Error converting data type varchar to numeric".
Error: MySql.Data.MySqlClient.MySqlException: #42000 "You Have An Error In Your SQL Syntax"
May 6, 2009Error: MySql.Data.MySqlClient.MySqlException: #42000 You have an error in your SQL syntax
[Code]....
VS 2010 : Error - A First Chance Exception Of Type 'System.Data.OleDb.OleDbException' Occurred In System.Data.dll
Sep 2, 2011I've spent a substantial amount of time trying to figure this out, but I keep getting the same error
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
A first chance exception of type 'System.NullReferenceException' occurred in project1.exe
This happens when I try to use the DataReader.my code is
Public Function Identification() As List(Of Integer)
Dim returnIndex As New List(Of Integer)
Dim dbCount As String = "SELECT Bookingid FROM bookdetail WHERE Date =" & getCurrentTimeString() & " 12:00:00 a.m."
Dim count As Integer = 0
[code]....
Error:'System.Data.Odbc.OdbcConnection' Cannot Be Converted To 'System.Data.SqlClient.SqlConnection'
Jan 26, 2009i am trying to connect to an MS Access database and I am getting an erro message on the following line of
searchtable_command = New SqlClient.SqlCommand(searchtable_string, testsearch_connection)
Error:'System.Data.Odbc.OdbcConnection' cannot be converted to 'System.Data.SqlClient.SqlConnection'.
Here my connection string:
Dim testsearch_connection As New Odbc.OdbcConnection("Provider=MSDASQL;Driver={Microsoft Access Driver (*.mdb)};Dbq=C:CesarAccessdatabase.mdb;Uid=admin;Pwd=;")
What am I missing?
Error: A First Chance Exception Of Type 'System.Data.SqlServerCe.SqlCeException' Occurred In System.Data.SqlServerCe.dll
Jan 27, 2010Do While rdr2.Read()
Dim var1 As String = rdr2.Item("Week").ToString
Dim var2 As String = rdr2.Item("L1").ToString
Dim var3 As String = rdr2.Item("L2").ToString
It generates the following error: A first chance exception of type 'System.Data.SqlServerCe.SqlCeException' occurred in System.Data.SqlServerCe.dll
Interestingly, if I use a numeric value for the variable it for LSArraytemp, it writes to the database no problem at all.
Data Type Error?
Mar 31, 2009I have the following piece of Code in my application shown below,
Try
Dim Oracle_num As New System.Data.SqlClient.SqlCommand(("SELECT Oracle_no FROM gprdsql.TblOracleNos WHERE Prac_no='" & _
[code].....
Deserialize Data And Keep Getting An Error?
May 26, 2011I am trying to deserialize my data and I keep getting an error.I'm hoping for any ideas of what could be the problem.My code in Visual Basic Express 2010:Imports System.Xml.Serialization
Imports Systm.IO
Public Class Form1
Structure gro
[code]....
