Use With Keyword On Existing Object?

Mar 24, 2010

Is it somehow possible to use the 'With' keyword on an existing object?I would like to do the following using LINQ to objects and can't seem to find a way:

From m as Product in Me _
Select m With {.Match = m.Name.IndexOf(query)} _
Where m.Name.IndexOf(query) > 0

[code]....

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Is Keyword Same As Object.ReferenceEquals

Apr 13, 2010

Is the Is VB.NET keyword the same as Object.ReferenceEquals?

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Object Reference Not Set While New Keyword Is Being Used

Apr 25, 2011

I have this CMember Class. I Write something like

Dim moMember As CMembe
r
moMember = New CMember

Then I want to set a variable to its CentreId property[code]...

Both are Integers, however a Object Reference Not Set exception is thrown

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Use New Keyword To Create Object Instance

Apr 18, 2011

I keep having error message at
ArrayGroup(count).dateDate = valueListString(0),

Code:
Structure dataAttribute
Dim dateDate As Date
Dim timeString As String
Dim volString As String
Dim openString As String
[Code] .....

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Use The New Keyword To Create An Object Instance?

Jan 7, 2010

when i compile my code i got "use the new keyword to create an object instance" at this line " accounts1(sd).Name = textBoxUser.Text"

My code is below.

Private Sub buttonSave_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles buttonSave.Click
If comboBoxAccounts.SelectedIndex >= 0 Then

[Code]....

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Using New Keyword To Create Object Instance

Sep 18, 2010

Private Sub textadd(ByVal sender as Object, ByVal e as System.Windows.Controls.TextChangedEventArgs)
txtfirstname.Text = txtdisplayname.Text
'TODO: Add event handler implementation here.
End Sub

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VS 2008 Use The New Keyword To Create Object Instance

Apr 13, 2010

VB is telling me to use the "NEW" keyword to create an object instance. For example: Private Sub ScoreTotal(ByVal sender..., ByVal e As System.EventArgs) Handles ListBox1.SelectedIndexChanged

[Code]....

When I run the "MainStudentScores" form and click on a student with three scores separated by the "|", it should give me a Score Total, Score Count, and Average. However it is giving me an error message at "Scores.Add(intPlaceHolder)" This is where VB is telling me to use the "NEW" keyword. Does this make sense?

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Replace An Existing Object In A Hashtable With A New Object?

Jul 14, 2010

I have a group of objects I set values in and then place in a hashtable with the keys stored in an array. When something happens and I want to replace the original object stored in the hashtable with a newer version I have no idea what to do. For example:

arContractsMissingData(arContractsMissingData.Length - 1) = ActiveContract.Item("caContractID").ToString
htMissingData.Add(arContractsMissingData(arContractsMissingData.Length - 1), objMissingData)

This adds the original object to the hashtable but after some conditional check a new object with the same fields but different values is created and needs to replace the original object. I tried setting the values from the new object to the old object like this:

htMissingData.Item(ActiveContract.Item("caContractID").ToString).ContractNoticeInitialDate = objMissingData.ContractNoticeInitialDate

This generates an error that option strict on disallows late binding.

Can I just remove the old object and add the replacement object?

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Use Keyword To Create Object Instance & Check If It Is Null Before Calling Method

Sep 26, 2010

Use the "new" keyword to create an object instance & Check to determine if the object is null before calling the method. I'm reading text from a text file using the following [Code]

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Initiate Array On Existing Object?

Aug 30, 2011

I have just started to work with Webservices and the vendor have provided me with a wsdl reference file.I have added the file to my project.The examples the vendor provide is written in C# (which I wish I was programming in) but I'm a old school VB programmer so I'm trying to map it over. In the examples they seem to initate a new array in an existing object but I can't figure out how to do this in VB?The example shows the following (C#)

Security_Authenticate sec_auth = new Security_Authenticate();
sec_auth.dutyCode = new Security_AuthenticateDutyCode();
sec_auth.dutyCode.dutyCodeDetails = new Security_AuthenticateDutyCodeDutyCodeDetails();

[code]....

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Overwrite Existing ListviewItem Object?

Jan 3, 2010

I've got this little problem with my listview Control, I decided I wanted to hide some of my data in each listview item so I inherited from the Listview "DiaryItem".The problem is I'm in this cross threading situation and I cannot seem to overwite one Listviewitem object with another, I'm sure its some sort of refrencing problem as when it goes out of scope(function close) the original data is still present, I know I could add the new data by adding a new ListviewItem and deleting the old one but they must be away around this.

Because of cross threading I could not use Items even though I'm checkign for it. Code:

[Code]...

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What Are The Advantages Of The "Using" Keyword Other Than Showing The Coder When The Object Goes Out Of Scope

May 31, 2012

Using vb.net 2008.I have used the "Using" keyword before in C# with objects that implement iDisposable.Can you use that keyword in vb.net also? What are the advantages of the "Using" keyword other than showing the coder when the object goes out of scope.I am under the impression that the "Dispose()" function is called at the IL level when you use "Using" instead of, for examplel, calling the Dispose() in the .net code.

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Changing The Object Declarations To Global Using The 'global' Keyword Evertime?

Mar 15, 2012

evrytime i add new controls to a form in vb.net the designer regenerates code and asks me to make corrections, so i have to keep on changing the object declarations to global using the 'global' keyword evertime it regenarates code,especialy dataset objects.how can i prevent this?

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Error: Use The "New" Keyword To Create Object Instance

Nov 29, 2011

VB is telling me to use the "NEW" keyword to create an object instance on the highlighted line in the code below, when I click on the button to add a row to the datagrid. Here's my

[Code]...

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PDF - Takes A 1 Page Existing Pdf That Ispecify And Inserts That Into Another Existing Pdf?

Nov 11, 2010

I need to make a program in vb that takes a 1 page existing pdf that i specify and inserts that into another existing pdf that i specify.

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Flattening An Object Hierarchy Using A Shim Class - Initializing Derived Object Properties From The Base Object?

Jul 10, 2010

I am somewhat new to object oriented programming and am attempting to flatten a Linq object hierarchy by using a shim class.how to initalize a derived class with property values from a base class?I have two objects, a base object with about 100 properties, and a derived object which inherits from the base object and adds a few additional properties beyond those of the base object. My simple constructor creates the derived object, but I am looking for a way to initialize the derived object properties with values from the base object.Right now I am using reflection to iterate over the properties individually and I suspect there may be a better way. The following example shows my shim class constructor for the derived class, and two properties:

newProperty1 - a new string property of the derived class

flattenedProperty2 - a new string property of the derived class, copied from a 2nd-level object of the base class

Code example:

Public Class derivedObj
Inherits baseObj
Private _newProperty1 As String[code].......

Is this the correct constructor approach to flatten the object hierarchy using a shim class? My second question relates to initialization of properties in the derived class. The constructor above creates the derived object, but what is the best way to initialize the derived object properties with values from the base object? The following code uses reflection to iterate over the properties individually, but I suspect there may be a better way.

Code example:

' property names are in the string array fieldNames

'baseObjQuery is an ienumerable of baseObj

'derivedObjList is a list of derivedObj[code].....

Is there a simple way to initialize values for the properties in the derived object based upon the values of the common properties in the base object?

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.net - Does C# Have A Handles Keyword

May 25, 2011

Protected Sub Menu1_MenuItemClick(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.MenuEventArgs) Handles Menu1.MenuItemClick
End Sub

In VB.net, we have the Handles keyword, I'm wondering if C# has anything comparable. Or do you have to manually wire all the methods to each control's event (in ASP.NET especially)?

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C# - .Net's With Keyword In Java?

Jun 6, 2011

Possible Duplicate: WITH statement in Java? does anyone know if there is the With Keyword in Java?

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C# - Namespace And Use Keyword

Jul 13, 2010

why use of namespace and use keyword and declaration of namespace

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C# To Vb: The **default** Keyword?

May 7, 2011

Possible Duplicate:Default value for generics k so while translating some code from c# to vb, i came across the default keyword, and I'm simply replacing it to nothing.

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Extended With-keyword In .NET?

Oct 29, 2010

In my current project everyone names variables and methods after what they are and what they do. This is good for quickly understanding the code, but with a lot of long varible names comes some headaches, such as when copying a dataset to an entity/object. So, while you understand the code, the readability still takes a blow.

veryLongVariableName.Id = datasetVeryLongVariableName.Id
veryLongVariablename.Something = datasetVeryLongVariableName.Something
etc.

Using VB.NET's With keyword can help.

With veryLongVariableName
.Id = datasetVeryLongVariableName.Id
.Something = datasetVeryLongVariableName.Something
End With

Now, my question, is there any way of using With, or something similar, but for several variables at the same time? Something like:

With veryLongVariableName As a, datasetVeryLongVariableName as b
a.Id = b.Id
a.Something = b.Something
End With

I'm all for descriptive naming conventions, but they do tend to clutter things. Especially in VB!

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How To Search A Keyword

Oct 26, 2009

I m trying to create a software in vb.net for some genealogists to trace their ancestors History, the users will search for the document in 3 ways

1. reference number from a combo box.
2. By the title of the document.
3. by inserting a keyword from the documents abstract..

i have already loaded the picture. i hav put all in one note pad my reference no., on next line i put my abstract and on the third line i put my path where the document is located.in coding i put all in different array.... making the program read all one by one line wise.i want to make search thru the keyword... means wen user inserts a key word in the textbox the program read all my abstract and then in a drop down it should display the documents that match the keyword.

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New Keyword But Still Gives Error

May 17, 2012

Its work well in windows 7 but when i run project in windows xp its says i must use New keyword but when i use New its gives error at regkey.GetValueNames and RegistryKey = Registry.LocalMachine and regBaseKey.OpenSubKey("SOFTWAREMyApp", FalseImports Microsoft.Win32[code]...

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Reserved Keyword In .net?

Mar 13, 2012

in C# you'd put a @ in front of a reserved keyword. Is there any equivalent in vb .net?

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Use A Keyword As A Propertyname?

May 3, 2011

I have to serialize/deserialize a class into a JSON string/and return. The JSON Strinig must contain the "error" string (like: {error:"something strange occoured", id:23, result:"xxxxx"}), which specifies the occoured error.

How can i implement a class like:

[code]...

If i do this, the word 'error' is invalid.

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Use Call Keyword In VB / VBA?

Apr 4, 2010

I use the Call keyword when calling subs in VB/VBA. I know it's optional, but is it better to use it or leave it off? I've always thought it was more explicit, but maybe it's just noise. Also, I read this on another forum: Using the Call keyword is faster because it knows that it is not going to return any values, so it doesn't need to set up any stackspace to make room for the return value.

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VS 2010 Use Of NEW Keyword?

Dec 1, 2011

First off let me say that I am essentially new to VB.NET, i.e; still learning. Also, I hope that this is the right place to post this question. In a Project I have a Class module defined as:

Public Class Def
Public Id As String
Public Meaning As String

[Code]...

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.net - Global Keyword In VB 2005?

Jul 1, 2009

I have to inherit some legacy code in company, which is written in Visual Basic.NET 7.0 (Visual Studio.NET 2002). I don't have much experiences in VB.NET, and this line of code gets me in trouble:

Public Class Global : Inherits System.Web.HttpApplication

Visual Studio gave this error: Error 31Keyword is not valid as an identifier.C:Documents and SettingsAdministratorDesktopPOManWebApplication1Global.asax.vb414C:...POMan

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Asp.net - What Is Keyword If Page.IsPostBack How Can Use It

May 11, 2011

What is this keyword how can use it?If Page.IsPostBack = False Then

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C# - Region Keyword In Functions

Nov 1, 2011

I generally use to organize codes below lines;

#Region "Comments.."
#End Region

But when I want to use it in the Function, it gives error ("..are not valid within..."). Are there any keyword to make this in the Function or there aren't? [Code]

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