Retrieve An Enum Member Given Its Name?
Jan 4, 2012It's very easy I have the following Enum
Public Enum TCheckStatus
Checked
NotChecked
[code].....
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Access Of Shared Member, Constant Member, Enum Member Or Nested Type Through An Instance; Qualifying Expression Will Not Be Evaluated
Jun 2, 2011how do I overcome it? I have created a class and compiled into .dll This code
[Code]...
Access Of Shared Member - Constant Member - Enum Member Or Nested Type Through An Insta
Aug 13, 2009In Visual Studio 2008, if I do this:
[Code]....
Does anyone here know how to get the above to work WITHOUT warnings being generated?
Warning 1: Access Of Shared Member, Constant Member, Enum Member Or Nested Type Through An Instance; Qualifying Expression Will Not Be Evaluated
May 31, 2010In the following code i get a warning at line 59:Warning 1: Access of shared member, constant member, enum member or nested type through an instance; qualifying expression will not be evaluated.and.. At line 78 I get this Warning:
Warning 2 Property 'SelectedCustomer' doesn't return a value on all code paths. A null reference exception could occur at run time when the result is used.
The program compiles and runs well, but i cant' undesrtand the reason for these warnings. Any Idea ?
1: Public Class Form1
2:
3: 'Form level members
4: Private objCustomers As New ArrayList
[code]....
VS 2005 Access Of Shared Member, Constant Member, Enum Member?
Apr 28, 2011Cannot appear to be able to get this function to not have the above error.Private Function GetIncidentActions(ByVal FromAgentID As Integer, ByVal ToAgentID As Integer, ByVal incidentAction As Integer, ByVal ActionDate As Date) As String
[Code]...
Access Of Shared Member, Constant Member, Enum Memberor Nested Type Through An Instance; Qualifying Expression Will Not Be Evaluated?
Jun 23, 2009i changed a class variable to shared so i can access it in all instances of the class, but it caused an error. what is causing this, and how can i fix it?
Private
Shared img As Bitmap
Me
.img = bgImage
Create A Enum Or Enum Type Functionality Witch Return String (enum Returns Int) In .net
Dec 30, 2009I have a URL lets say . some time i need to send HTTP and some time i need to send it to HTTPS for that i created a enum:
Private _protocol As Protocol
Enum Protocol
HTTP
HTTPS
[CODE]...
Now when i get value back from protocoltype it returns me integer value as enum do so tell me how to get string from enum or other substitute.
Dim targetUri As String = setting.protocolType & "://www.mysite.com"
Retrieve Enum Value Based On XmlEnumAttribute Name?
Jun 15, 2010I need a Generic function to retrieve the name or value of an enum based on the XmlEnumAttribute "Name" property of the enum. For example I have the following enum defined[code]...
View 3 RepliesVS 2008 - Retrieve Enum Custom Attribute In Single Statement
Jan 28, 2010I have an enum set with custom attributes. need to retrieve the attribute value in single statement ...
Public Enum Messages
''' <summary>
''' <value>(MessageText : Do you want to save ?)</value>
''' </summary>
<StringValue("Do you want to save ?")> Save
[Code] .....
Now I needed to retrieve the enum value like something below.
Messages.Save.GetType().GetCustomAttributes...... something is possible in single statement itself?
C# - Retrieve Internal Member Of Nested Class By Reflection
Jun 1, 2012I know that the MenuItem class contains an internal class named MenuItemData, which contains itself an internal member named onDrawItem. Given a MenuItem, I want to retrieve the object corresponding to the member onDrawItem. But all I manage to do is to get the FieldInfo, not the object itself.
Here is my code:
Dim obj As Object
Dim fi As FieldInfo
Dim item as System.Windows.Forms.MenuItem
Dim mType As System.Type
[Code] .....
When reaching the last line, I get an error saying something like that (it's traduced):
The field 'onDrawItem' défined in type 'System.Windows.Forms.MenuItem+MenuItemData' is not a field of the target object of type 'System.Windows.Forms.MenuItem. I don't know what object to pass to the GetValue function on the last line. My goal is to remove the base eventHandler of the menuItem, named DrawItem. See this post and the function RemoveClickEventin the accepted answer for a better understanding.
.net - Retrieve User Information And Check If Member Of A Group In Active Directory Using .NET?
Sep 7, 2010I'm using the following code, which works, to login a user to an application built in VB.NET against active directory.This code works great but I need to retreive the user's first name, last name, display name and also check if the user is part of a group.
I've tried many forms of adResults.Property("displayname").ToString() and the like but just can't get it to work right.Anyone have any ideas how to do what I'm looking to do?Public Function ValidateActiveDirectoryLogin(ByVal sDomain As String, ByVal sUserName As String, ByVal sPassword As String) As Boolean
[Code]...
Enum Item - Protected Name - Statement Cannot Appear Within An Enum Body
Mar 25, 2011I'm trying to declare an enumeration and one of the names I'd like to use for an item is not usable apparently. Where I am declaring 'STEP = 3', I get this error message in visual studio: "Statement cannot appear within an Enum body. End of statement expected." Is it possible to use STEP as an item name somehow? [Code]
View 4 RepliesENum Names And Values Don't Match For Same ENum
Jan 2, 2012RE - FilesystemRights Enum
This Code:
Dim FSRS As Type = GetType(FileSystemRights)
For Each fsr As String In [Enum].GetNames(FSRS)
TextBox1.AppendText(fsr.ToString & vbCrLf)
Next
Nullable Enum Verse Enum.None?
May 26, 2010Which is better, using a nullable enum or adding the value None=0 to your enum list?Using nullables requires more code, but I kind of like it since it forces me to think about the possibility. Otherwise I'm liable to forget about the None enum and fail to account for it being a special case.
View 11 RepliesSearch An Enum Value Inside Of An Enum?
Aug 23, 2011I've tried the code below but it always returns nothing, It should enter
Protected Function GetTotalDebitAmount(ByRef roEntryDetailRecordBaseList As List(Of PPDEntryDetailRecord)) As String
Dim iTotal As Integer = 0
[Code]....
I need some one who evaluate the part below:
If CBool(Array.IndexOf([Enum].GetValues(GetType(TransactionCodes.Debits)), CInt(oEntryDetailRecord.TransactionCode)) > 0) Then
Does The Assignment Operator In 1.1 Do A Member-by-member Copy Of The ObjOriginal To ObjClone
Nov 18, 2009I'm "cloning" objects in my code. For instance: objClone = objOriginal My question is: Does the assignment operator in VB.NET 1.1 do a member-by-member copy of the objOriginal to objClone or does objClone simply point as a reference to memory referenced by objOriginal?
View 3 RepliesVS 2005 Configuring A Datasource Value Member & Display Member
Jan 6, 2011I have 2 tables Table A & Table B Table A has the table values that I want to be populated in a datagridview control.The challenge is that column 1 in table A contains an ID(foreign key) to a name field that is a located in table B. I need the datagrid to have the first column be a combobox that displays the names(from Table B) that are already in table A via the ID's, but reference the populating values from Table B. So that when you bring down the combobox you would be choosing from Table B data but populating table A with the ID and you would see a name there instead of an ID.[code] How do I populate my DS dataset with Table B? And how can I create a link to these two tables using a bound datagridview control?
View 1 Replies.net - The Member 'X' Was Changed To Be Inconsistent With The Association Member 'Y'?
Jan 3, 2011I get this error if I follow these steps: Change property Y of an object (an associated entity property)
Attempt to submit changes At this point the value of Y and the value of X (the underlying key) are not in agreement -- LINQ to SQL apparently doesn't synchronize these until GetChangeSet is called.An expected error occurs due to some business logic or database level constraint during the update operation.At this point the value of Y is in agreement with X because GetChangeSet was called.Change the value of Y to Nothing (aka null).Call GetChangeSet.
The error occurs on the last step because the value of X and the original value of X (returned by GetOriginalEntityState) are different, and the new value does not agree with Y? Is that why? Is this a bug in LINQ to SQL. Must be because I don't see the same behavior if I change Y to another (non-null) value instead during step 5. What's the right way around this? I can see a few ways:
Discard the DataContext when an error occurs and leave the UI as-is. I don't like this because then optimistic cocurrency change conflicts cannot be detected. The new context doesn't have the original values in it that were populated at the same time the UI was populated, so if the UI has any stale values in it, they will cause data in the database to revert.Refresh the datacontext (OverwriteCurrent) and leave the UI as-is. I don't like this for the same reason as #1.Refresh the datacontext (OverwriteCurrent) and re-populate the UI. I don't like this because then the error message just presented to the user does not show the user the error they made and allow them to correct it. It also discards all the other changes the user may have made.When the error occurs, explicitly retrieve the key for Y that corresponds to the original value of X and reset Y, then call GetChangeSet to re-synchronize X (X is read-only or private so I can't reset it directly). This seems to work, but seems like a hack, and may require lots of code for other similar errors.
ComboBox / Binding / Display Member & Value Member
Aug 31, 2011I know I have done this before and as I remember it should be really easy. But for some strange reason I can't do it now and I am about to jump off the building.I will make it simple:Two tables, one is just a list of products and their code.The other table: "details" has a field named product. I want to store only the code there.In the second table's entry form, I am putting a combobox. This combo box should display the list of products, their names, but depending on which one is selected, the code is what is passed to the table "details". Currently If I set the display member to product and the value member to code it still pases the product to the binded data source.
View 3 RepliesShow Display Member Based On Value Member?
Dec 6, 2010I have a database that holds information about a particular job. One of those things is a customerID. CustomerID links to another table containing customer details. I have a combo box attached to a custom object that holds customerID as the valuemember and CustomerName as the displaymember.The JobDetails holds the customerID info. How do I set the default selection in the combobox based on the ValueMember of the combo box?
View 2 RepliesIn C#, Implement An Interface Member Using A Member With A Different Name?
Apr 4, 2011in VB.NET you implement an interface like this...
Sub SomeInterfaceMember()
Implements ISomeInterface.SomeInterfaceMember
End Sub
while in C# you do it explicitly like this (which can only be called via the interface)...
void ISomeInterface.SomeInterfaceMember(){}
or more simply, implicitly like this...void SomeInterfaceMember(){} // Note the name matches the interface member However, regarding VB, I can also do this...
Sub SomeRandomMemberName()
Implements ISomeInterface.SomeInterfaceMember
End Sub
In other words, the method that handles the implementation can have a completely different name than the interface's member name.I'm just wondering if there's something similar to this in C#. (Yes, I know I can simply do an explicit interface, then access it via another 'wrapper' member with a different name that simply delegates to it, but in VB.NET?
Asp.net - BeginForm Is Not A Member Of 'Html' And Encode Is Not A Member Of HTML
Jan 26, 2011I'm working on this big project in MVC ASP.NET w VB.NET One of my views is getting me headaches since a few and i'm not sure what's up. I've used the Begin.Form and Html.Encode methods alot in my other views and i never had any problems. Now this new Create.aspx view for one of my object called Automation is giving me multiple build errors such as those cited in the title plus
Error 184 'Context' is not a member of
'ASP.views_automatisation_create_aspx'.
BeginForm is not a member of 'Html'
[Code]....
Placing Value Member Of A Combobox In The Display Member Of Another Combobox
Jan 14, 2012I have been battling with this problem for months with virtually no success. I am using Visual Studio 2008 Professional. The database is Microsoft SQL 2005.
I have two combo boxes - both bound to database tables. These are: Combo box 1 is for "VAT" and is bound to the VAT table. This table has 3 columns configured as shown below:
[Code]....
The commented out code was my pathetic attempt to put the Value member of one combo box into the display of the other. This obviously does not work and my web browser, when using Google, is full of purple headers showing the sites that I have visited looking for an answer.
When I have this working, I want to use the feature in a datagridview which may make a difference to how the problem is approached.
How Enum Is Used In .NET
Nov 25, 2009How does enum work in .NET ?
eg.
Enum eOpenMode
Add = 1
Edit = 2
End Enum
[Code].....
How does this gets compared by their value(1,2) or by its name (add,edit) and what will be memory allocation scheme ?
How To Use IN In An Enum
Apr 13, 2011I need to use IN in an EMUN.
-Public enum Talkers
-IN
-GP
-WI
-End Enum
.net - Can An Interface Contain An ENum
Jan 27, 2010Can an Interface contain an Enum?I am using asp.net 2.0. Suddenly my code started having problems when I added an enum to the interface below. In it, LookUpType is an enum.
Public Interface ILookup
Property ID() As Int32
Property Text() As String
[code]....
Asp.net - VB Brackets In Enum?
Mar 24, 2011I'm finding this in some legacy code and just curious what the brackets are for?
Public Enum myEnum
none = 0
abc = 2
[code]....
Decreasing Value In C# Or .NET Enum?
Apr 23, 2012More for interest than actual need.is it possible to have an automatically decreasing enum in C# or VB.NET?
public enum testEnum
{
this = -1,
that,
other,
}
So that that = -2 and other = -3.I'm pretty sure the only way to do it is to specifically assign "that" and "other", but I wondered if there was an automatic way of doing it.
Edit To be clear, I'm simply talking about the automatic assignment of the value, not the actual value of the enum decreasing.
ENUM As Use It In Other Forms?
May 26, 2009I'm using vb but still learning it. Here is the question, I have following ENUM created so that i can use it all the form. I created this Enum on my main form (startup form) and want to use in another form.
Enum MyStatus
Good = 1
Bad = 2
Normal = 3
End Enum
Now from other form I'm using it like frmMainmenu.MyStatus.red. I was wondering how i can make it public or create it in a way so that i don't need to give the prefix frmmainmenu before using its value.
Function For An Enum?
Mar 10, 2009I have an enum like this:
Public Enum AssociateType
ALL
TIMED
COMMISSIONED
MANAGER
INVALID
End Enum
and I want to get a string based on the value of this enum:
Public Shared Function TypeToString(ByVal Type As AssociateType) As String
'Inputs: An AssociateType of the type of associate.
'Outputs: A string of the type of associate.
[Code]......
