im having some problems using the data adapter. i tried a statement select 1'test' but when i do adapter.Fill(dataset, "tbl1") and tried to read the value from the first row in tbl1.hen i do row(0) i can retrieve the value. However if i do it by the name like sayrow("test") and i would get a dbnull.
View 9 RepliesI am just trying to get the system to open a database and I get this error:
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
here's the entire code of the main form
=======================================
Imports System
Imports System.Data
Imports System.Data.SqlClient
[code]....
the error is generated at the open method note* this same code works fine in another computer, the main difference is that this one has a 64 bit OS.
i 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?
My colleague gave me a DLL that manage all database business. I wanted to invoke a function that uses Stored Procedure and return the search result. In the function receive a parameter type in ystem.Data.IDataParameter[]. Below is my codes.
[Code]...
This is frustrating, I am just trying to get the system to open a database and I get this error:
A first chance exception of type 'System.Data.SqlClient.SqlException' occurred in System.Data.dll
here's the entire code of the main form
[code].....
Private Sub Button3_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button3.Click
[code]...
I have added a reference to the System.Data.SqlClient, but i am not able to use its components while coding, But when i import it in the form class i able to use the component.
So,Is importing a namespace and adding a reference two different things?
I have imports namespace System.Data.SqlClient.I just create object of SqlConnection,But error is there-
'SqlConnection' is ambiguous in the namespace 'System.Data.SqlClient'.
[Code]...
The Visual Basic in System.Data.SqlClient is not filling DataTable named "Person"[URL] Invalid object name 'Person'.
Description:An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.Exception Details: System.Data.SqlClient.SqlException: Invalid object name 'Person'.
[code]....
An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Invalid object name '#temp1'.
I am creating class libraries in my project so that I can update code without having to update the whole app.I created a class library project and added some code to it. I also added a reference to System.Data.SqlClient and also imported it into the class file.I am getting an error and I have never seen it before. Been looking online and not able to find an answer yet.
View 2 RepliesAn unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.Data.SqlClient.SqlException: Invalid object name '#temp1'.
Is there something wrong with my connection string that I would get this exception thrown back at me from my code? I have the string saved in the code and when I try to create an SqlConnection I get the exception above thrown and below is my connection string which is actually the address to my DB file.
Connection = "Data Source=.SQLEXPRESS;AttachDbFilename= C:Documents and SettingsTTTMy DocumentsBASEO.mdf;Integrated Security=True;Connect Timeout=30;User Instance=True"
Private Sub btnRegister_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnRegister.Click
Dim msg As String = ""
Dim result1 As Integer
conKk.Close()
[code]....
It stated that "incorrect syntax near 1"...
I am working on a windows application in vb.net 2005 and it needs to connect to the SQL Server database. In this example I testing if the connection is able to open properly:
[Code]...
Is it something dealing with the permissions set with the database server or something? I am new at .NET programming and I have been spinning my wheels on this for the past couple of days and I am at a loss. From what I research, this error should only occur if I was creating a web program, but I am not. It is a windows application.
My application requires a user to log in and allows them to edit a list of things. However, it seems that if the same user always logs in and out and edits the list, this user will run into a "System.Data.SqlClient.SqlException: Timeout expired." error. I've read a comment about it possibly caused by uncommitted transactions. And I do have one going in the application.
[Code]...
I looked at the Dispose() method in System.Data.SqlClient.SqlTransaction (using a decompiler):
[Code]....
Why does everyone say in forums that it is Rolling back in the dispose? Where does it rollback?
im added a dataset inside my project, and inside the dataset i added a DataAdapter with the steps like below:Use SQLStatement --> select A,B from tb_example --> Fill a datatable.And then i bind one of my combobox datasource's display member = Avalue member = BAnd its work properly!After few weeks, im reopen the project and i try to add another new dataadapter in the previous dataset and a new combobox like steps i did before. When i come to the combobox and try to find the datasource in combobox's properties and i cant find the dataadapter i jz added.
View 7 RepliesHow to insert data into access database using dataadapter?
View 1 Repliesi am trying to update database with updated data in data adapter. here is error message. "Update requires a valid UpdateCommand when passed DataRow collection with modified rows." here is my code.i get this error when i try to update dataadapter with following line.
[Code]...
In Microsoft Visual Basic 2005 Express Edition Version 8.0.50727.42 (RTM.050727-4200) and Microsoft .NET Framework Version 2.0.50727.
Right Click Toolbox--Choose Item--.NET Framework Components--Check on OracleConnection and OracleDataAdapter--Ok
Now double click OracleDataAdapter1 in the toolbox.Data Adapter Configure Wizard appears. Click on New connection.Add Connection dialoge box appears.Click on change.Change Data Source dialogue box appears.Here i am getting only 2 items:
1.Microsoft Access Database File
2.Microsoft SQL Server Database File
And in Data Provider combo box; only ".Net Framework Data Provider for SQL Server".I am not able to configure my OracleDataAdapter1 control by choosing above method.Machine have Oracle 10G Client and Server well installed. I am able to use Dim oda As New System.Data.OracleClient.OracleDataAdapter() and it is working fine; but i wish to configure oracledataadapter by using above method. Moreover, it is possible for me to configure oracledataadapter in Web Developer 2005 by above metohd, but not in VB.NET.
I am wanting to use the TableAdapers and/or DataAdapters that are stored in an XSD file ("A DataSet for using data in your application") to
1) delete data from SQL Server
2) insert data from a dataset to SQL Server.
the XSD is to be stored as a file outside of the application so that the same code (this code i am having difficulty with) can be used to upload data from different excel files.
I created the XSD file in VS 2005 and "Configured" each table adapter to generate: Select statement, Update statement, Delete statement, table mapping, Fill method, Get method, and update method.
I am searching for some generic code that will execute the update statement and populate the database with the data in the data set.
How do i retrieve the TableAdapter and DataAdapter information from dsXSD (or the file dsLoadData.xsd)?
And then use the data, especially if relationships exist between tables defining a specific order for the tables to be loaded...
Do the SQL Statement need to be dynamically (at run time) written?[code]...
I populate a datatable using a dataadapter. the select query pulls data from a view in which I combine multiple tables. Now I need to run different update statement etc to update each table. foe example I will update balance field in the accounts table using one query and another to update days present etc.
how should i do this? must i loop through each row in my datagridview?
i need expert opinion on saving data to database though efficient method/professional approach.I'm saving data using following code.[code]There are some other ways like, use Insert query, i want to know does above mentioned method take too much resources, or make db unnecessary busy
View 1 RepliesI'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]....
I am getting an error message: "Pervasive.data.sqlclient.v is not accessible in this context because it is 'friend.'" This error message appears when I hover the cursor over the "For Each v In qv" line in the following code:
[Code]...
i need to clear this error
A first chance exception of type 'System.Data.OleDb.OleDbException' occurred in System.Data.dll
Do 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.
I have a function (on vb.net) to get a data from a XMLWebService:
[Code]...
I added this lines in the form load of DataGridPrinter by Merrion in the codebank..[code]Unable to cast object of type 'System.Data.DataViewManager' to type 'System.Data.DataTable'.
View 2 Replies