Error In VB Code "Name Of Field Or Property Being Initialized In An Object Initializer Must Start With '.'_"?
Jun 16, 2009Error in VB code "Name of field or property being initialized in an object initializer must start with '.'_"
View 3 RepliesError in VB code "Name of field or property being initialized in an object initializer must start with '.'_"
View 3 Replies[code]......
View 9 Replies[code] I get this error Name of field or property being initialized in an object initializer must start with '.' How should I write this? Or is there an alternative way of doing this?
View 2 RepliesWithin the button code (Default.aspx.vb), there is an 'object initializer' error message. What is the cause of this error?
Go to the following URL link, download the 'High Res' Visual Studio snapshots at: [url]
The button code is written in VB code, and reads as follows:
CODE:
I've got this code and it opens the database connection in debugging (and i've used the wrong password to test that it fails) but when i come to ExecuteNonQuery I get this error
ExecuteNonQuery: Connection property has not been initialized.Here is my code.VB.NET
Public ConnectionString As String = "Data Source=JOHN-PCSQLEXPRESS;Initial Catalog=RLNZ_11;User Id=App;Password=Password;"Dim connection As New SqlClient.SqlConnection(ConnectionString)connection.Open()
Dim command As New SqlClient.SqlCommand("INSERT INTO news (ID, NewsID, NewsTitle) Values (@ID, @NewsID, @NewsTitle)")command.Parameters.AddWithValue("@ID", "")command.Parameters.AddWithValue("@NewsID", NewsID)
command.Parameters.AddWithValue("@NewsTitle", NewsTitle)command.ExecuteNonQuery()
this code is in the button click , i get each data out using spiltbut i encounter error at "cmd.CommandType = CommandType.Text"
Dim conn As New SqlConnection(GetConnectionString())
Dim sb As New StringBuilder(String.Empty)
Dim splitItems As String() = Nothing
[code].....
The code below will throw an InvalidOperationException: The ConnectionString property has not been initialized. The exception is thrown at the line calling Connection.Open() in the Load method. If I use the try-finally statement instead of the using statement, everything works correctly. Can anyone explain why the exception occurs with the using statement?
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I have used this piece of code for connecting to the database..It is showing error like The ConnectionString property has not been initialized.
Dim sConnString As String = "user id=" + sUserID + ";password=" + sPwd + ";initial catalog=" + sDatabase + ";Connect Timeout = 30" + ";Pooling=true;Max Pool Size=" + MaxPoolSize + ";Min Pool Size=" + MinPoolSize + ";"
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i need to update my data using stored procedure here is my code :Try
con = getconnect()
con.Open()
sqlcmd = con.CreateCommand
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my problem is first of all i created a button and a datagrid to display the mydb.mdb in it the code behind that is as follows when i click on button the students table from mydb.mdb (which resides in my pc) needs to display in datagrid
<code>
using System;
using System.Collections.Generic;
using System.ComponentModel;
[code]....
the error is at Line: dbReader = cmd.ExecuteReader();an the error is :ExecuteReader: Connection property has not been initialized.
As part of the application I'm writing in Visual Basic, I have written code to display records in text boxes and cycle through each of them one record at a time. I'm having trouble getting the code I've written to update records to work however.
VB
Public Class frmRecords
' VARIABLES TO AID NAVIGATION THROUGH RECORDS
Dim moverow As Integer
[code]....
At the present time I get an error that says "The DataAdapter.SelectCommand property needs to be initialized"
I am trying to insert the information from comboxes, check boxes, and date and time picker. I am getting the following error when I hit submit button. "ExecuteNonQuery: Connection property has not been initialized. - system.data" I am sure I am making some silly code mistake that I am not able to figure out.
Dim icount As Integer
Dim SQLstr As String
Try
SQLstr = "Provider=Microsoft.Jet.OLEDB.4.0;Data Source=C:ADAccountDel.mdb;"
[code]....
I'm trying to get a grasp on it. Anyways, i'm having the an error for the cmd.ExecuteNonQuery() it gives me an error message as follows "ExecuteNonQuery: Connection property has not been initialized."
Private Sub Button4_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles btnAdd.Click
Dim cmd As New OleDb.OleDbCommand
If Not cnn.State = ConnectionState.Open Then
cnn.Open()
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Im just getting user to passing in varibles to SQL i have the below connection string and its throwing an error saying "The SelectCommand Property has not been initialized before calling 'Fill'
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What is this kind of exception?
Error : Execute requires the command to have a transaction object when the connection assigned to the command is in a pending local transaction. The transaction property of the command has not been initialized..
This one causes the error: Dim oOperation As COperationOutputTypeBS
oOperation = COperationOutputTypeBS.GetOperationOutputType(txtOperationCode.Text)
Dim Current As String
Current = Directory.GetCurrentDirectory()
con.ConnectionString = "PROVIDER = Microsoft.Jet.OLEDB.4.0;Data Source = " & Current & "SchoolMaticsDatabase.mdb"
con.Open()
[code]....
If tab index is changed the sub TabSelect() is called also. One other thing is that the program checks the day of the week and correctly displays the tab corresponding to that day. On Monday this code was working fine, as soon as it hit Tuesday this error cropped up.
I have reviewed the prior post on this topic and am confused.
Private Cn As sqlConnection
Private Cmd As sqlCommand
Private Da As sqlDataAdapter
[code].....
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This one copied from microsoft web site, is this command working...? Error like " Executive Reader Requires.......Transaction property of the command has not been initialized..."
I've got a custom NumericEditor control that has a nullable Decimal property called Value. When I bind a data field to Value, I'd like to retrieve the underlying Type of the data that's bound, so that I can restrict the use of decimal places if the source field is an integral data type.I figure I'd have to do this in the BindingContextChanged event, but how do I get the Type of the data field from the binding itself? My Google-Fu is failing me at the moment.
In short, I'm looking for something like the GetValueType method mentioned in the following question: Simple databinding - How to handle bound field/property change. Winforms, .Net I imagine this method would also be handy if the Value property was an Object.
on a Windows Form, an object myObject is bound to myObjectDataBindingSource like this:myObjectDataBindingSource .DatSource = myObject on the form, i have a check box bound to the property: chkProp1 for example of the object: myObjectDataBindingSource In the code when the checkbox is clicked, I need to go in code and change another text property of the object txtProper2 for example like this:
Private Sub chkProp1_CheckedChanged(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles chkProp1.CheckedChanged
[code].....
I am making use of a 3rd party dll and am encountering some strange behavior in VB, which doesn't occur in C# Perhaps someone can explain what is going on. Anyhow, I am making use of a method in this 3rd party library which accepts an array parameter ByRef. The end result is the variable should remain null after the method call, but it is returning initialized for some reason.
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My LINQ query is as follows
Dim Query = From t In New XPQuery(Of xUser)(Xpo.Session.DefaultSession)
.Where("Name=John").Select("new (Name as FirstName)")
Unfortunately i get the error No property or field 'John' exists in type 'xUser'.Of course no such property exists in my xUser class, but hot can i fix that?After reading within the DynamicLinq Class i found this function
Function FindPropertyOrField(ByVal type As Type, ByVal memberName As String, ByVal staticAccess As Boolean) As MemberInfo
Dim flags As BindingFlags = BindingFlags.Public Or BindingFlags.DeclaredOnly Or _
If(staticAccess, BindingFlags.Static, BindingFlags.Instance)[code]...
How can i edit my "faulty" query? What am i doing wrong here?
For adding some images to a WrapPanel, I'm trying to iterate through a collection. My TileCollection contains instances of a Tile class which has a ImageSource property. I've got it by doing all the stuff step by step - Create a new image 1, assign all the properties, create a bew binding 1, assign binding 1 to image 1, add image 1 to the panel, proceed with image 2, ... tons of code I want to shorten now. Here is what I've got so far:
For Each tile As Tile In TileCollection
MainPanel.Children.Add(New Image With {.Width = 80, .Height = 80, .Margin = New Thickness(10), .SetBinding = New Binding With {.Source = tile, Path = New PropertyPath("ImageSource"), .Mode = BindingMode.Default, .UpdateSourceTrigger = UpdateSourceTrigger.PropertyChanged)}})
Next
1) ."SetBinding" doesn't work in object initializer expression. Is there any workaround?
2) Is there any way to add a handler in object initializer expression, for e.g. capturing mousedown events?
I've looked at a lot of posts on different forums where others have received the same error. Most say they were not referencing the connectionstring from the web.config file correctly, or they were trying to open the connection before setting the connectionstring. Well, if that were the case for me, then how does it work on two different systems, but not on the third? It works on my development PC and on the development server, but not in the production environment. The difference is the web and DB server are separate physical servers in my production environment and on a single server for development. My setup, error message and code will be listed below.
I can simulate the error on my PC if I rename the connection string in either section of the web.config file (appsettings, connectionstrings) to something else. You will see how I have tested both below.
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I have a web application that works perfectly on my local machine but not once Ive uploaded to the hosting server I get:
Server Error in '/' Application.
The ConnectionString property has not been initialized.
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.InvalidOperationException: The ConnectionString property has not been initialized......
I have a web application that works perfectly on my local machine but not once Ive uploaded to the hosting server i get:Server Error in '/' Application.The ConnectionString property has not been initialized.Description: An unhandled exception occurred during the execution of the current web request.review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.InvalidOperationException: The ConnectionString property has not been initialized.Source Error:Line 423:Dim conn As New SqlConnection(connstring)
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i get error " the connection string property has not been initialized" while inserting. am using MS access as database.
View 4 RepliesIm getting "connection property has not been properly initialized" error message on command2.ExecuteNonQuery().
I Have an SQL query which displays its result in a grid view (one result only) I'm attempting to get this result to update the database with this particular result from the SQL query
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When i am try to execute following code it gives "ExecuteNonQuery: Connection property has not been initialized" error,
Try
Dim cmd As New OleDbCommand
Mycn = New OleDbConnection("Provider=Microsoft.Jet.OLEDB.4.0;Data Source=E:\MILIND\Structure\Reports_DB.mdb;")
Mycn.Open()
[code].....
Public Class LoginForm1
Private Sub OK_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles OK.Click
[code].....