If a field called X in a datarow called R is an int32 and Y is an int32 how can I make this statement work:
r!x += y with option strict on.
Error 8 Option Strict On prohibits operands of type Object for operator '+'.
I really like the coding speed that vb.net provides, but I don't like the possibility to forget to declare variable types, return types of functions, etc. and that is why in each class I use[code]..
Is there a way to define those two options on the project/solution level?
what does these two code means in vb.net: Option Explicit on Option strict on i think option explicit means the compiler is not going to do any kind of conversion and i need to do all of them by the code;also it becomes case sensitive i.e;
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Using VS2008, targetting framework 3.5, trying to update some VB4 code. Yes, VB4.I have a bunch of legacy code I'm trying to update, and I had the idea of trying to work through it by executing the old code, working out what was causing each error as I came to it, solving the problem, and then moving on.In order to do this, I have sinned and set Option Strict Off, Option Explicit Off and Option Infer On.Yes, I'm going to hell for this.Problem is, I'm still getthing errors that various things haven't been declared.All of these the items showing errors are in the form: itemName(obj)Is my problem that the compiler thinks that these are method calls for methods which haven't been declared?PS: For anyone wanting to tell me not to use these settings, I already know
View 2 RepliesWhen creating a T4 template in VB.NET, how do you specify Option Explicit, Option Strict,and Option Infer settings? There's some sort of <#@ #> tag for doing this, but I can't find it.
View 1 RepliesIf a field called X in a datarow called R is an int32 and Y is an int32 how can I make this statement work:
r!x += y
with option strict on.
Error 8 Option Strict On prohibits operands of type Object for operator '+'.
I have two datatables with similar structures that I want to make one existing row to be updated from another datatable.
For example, "tableA" has three columns: "one", "two", and "three"; with "one" being the primary key...
and "tableB" has three columns as well: "one", "two", and "three"; with "one" being the primary key.
Say there is a row on tableA that is different than a row on tableB (with a matching primary key). What I wanted to do, as efficiently as possible, is to take the that row from tableB and replace the one on tableA so it'll be modified.
I'm not sure if there's an easier way of doing that instead of using loops for setting the row's items.
the combo box style 1 has both the drop down option but also a manual entry option. I need to know how to code it so that when you manually enter data, it takes that data and places it in a text message "The shipping charges for "data" is $15" displaying in a text box. Shouldn't be hard but have developed a mind block.
View 4 RepliesI run understanding code in my bridge program to call the double dummy solver dds.dll.
<DllImport("dds.dll", CallingConvention:=CallingConvention.StdCall)> _ Public Shared Function SolveBoard(ByVal deal As dealstruct, ByVal target As Integer, ByVal solutions As Integer, ByVal mode As Integer, ByRef tricks As futureTricks) As Integer End Function <StructLayout(LayoutKind.Explicit)> _ Public Structure dealstruct <FieldOffset(0)> Public trump As Integer <FieldOffset(4)> Public first As Integer
[code].....
After filling in the variables, the double dummy solver is called by:
calldll = SolveBoard(dealStr, target, solutions, mode, futureStr)
With a 32-bits machine this code is functioning correct, but with a 64-bit machine the code generates next error code:
System.TypeLoadException:Could not load type 'Dealstruct' from assembly B-Bridge version 1.1.7, Culture=neutral, PublicKeyToken=null' because an object field at offset 20 that is incorrectly aligned or overlapped by a non-object field.
hich adjustments I have to make to the code so it will function correctly on 64-bit machine.
If default 'sa' account has sys_admin permissions for the whole SQL instance and all its databases. On the database itself, if I don't have db_datareader permission enabled, I would assume it doesn't need it as it is implied but I was wondering in .net, is there way to check if db_datareader has explicitly been enabled and not just implied from the 'sa' being a sys_admin.
View 1 RepliesWhat are the main functions needed to create a .dll file in vb.net which needs to be Explicitly linked i.e at run time to an application Plz post me an equivalent code snippet in VB.Net
Explicit run-time linkingDLL files may be explicitly loaded at run-time, a process referred to simply as run-time dynamic linking by Microsoft, by using the LoadLibrary (or LoadLibraryEx) API function. The GetProcAddress API function is used to lookup exported symbols by name, and FreeLibrary — to unload the DLL.
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How do I add an explicit reference to system.drawing in visual basic 2010 express console application?
View 1 RepliesIn C# you can define explicit add/remove code when an event is subscribed/unsubscribed.
Is this possible in VB.net?
How to implement explicit interface implementation in VB.NET?
View 3 RepliesI have some code I inherited which has a lot of warnings that I would like to get removed. Many are of the form Property '<propertyname>' doesn't return a value on all code paths. I know why it is saying this, I'm just trying to determine what the correct 0 impact way of fixing this is.[code]Unfortuantely if I put this in my code (having changed the local variable name to avoid collisions) it then complains that it is being used before it has been assigned a value.Try to analyze IL in LinqPad (not sure if this is a good test or not) reveals that the empty method is the same as the above that Reflector gave me but it is different from return Nothing and return "".What can I use to get rid of this warning while guaranteeing the code runs 100% the same? [code]I'm not sure what ldloc.0 does here. I'm wondering if it is trying to get something from a register which will be null and if that is therefore the same as ldnull in this situation but I havent' ever really studied IL much before...
View 2 RepliesThat is the question. Is there anything you can do with c++ unions that you can't with c# Explicit structs?
View 3 Replieswould like to define some custom Implicit conversion function within my VB class. How can i do that. I have seen samples in C# but not in VB
View 8 RepliesRight now I'm using the following code in my markup[cod]e...
I would like to be able to call it by index instead of explicitly by "SpeakerName". Is there a way to do this in ASP.NET 4.0?
Cannot implicitly convert type 'decimal' to 'int'. An explicit conversion exists
View 1 RepliesI need to explicitly load my data source variables and then call the insert method associated with the data source. The sample VB .net code is listed below. So is it sufficient for me to just call the Insert() method when I am ready to insert my values? Or do I need to create an insert event? You see if I look at the properties window for the data source, there is a lightning bolt icon that will generate events for the data source such as Insert,Inserting,Disposing,Init,Load etc.
Protected Sub btnSave_Click(ByVal sender As Object, ByVal e As System.EventArgs)
Me.SqlDataSource1.InsertParameters.Add("@Title", "Mr.")
Me.SqlDataSource1.Insert()
I want my console application to be able to do one function I have when you click one option on the windows context menu, and another function when you click another option.
View 3 RepliesHow can I get round this error: Option Strict On disallows implicit conversions from
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1. I have read that keeping Option strict on and Option infer off is good practice and will insure your code is tight and properly written. I would like input regarding this, pro's and con's from those who are in the know.
2. Having said that, I have set Option strict on and Option infer off in an existing program I wrote (that was working perfectly mind you) with them off and on respectively. I went through and cleaned up all the errors on the 'need AS' and casting of variables, but one is leaving me a bit put out.[code]
I have also read where using My.Computer.System.Directory.GetFiles() instead of System.IO.Directory.GetFiles() is probably not a good thing, but when I change to this I get no error, but also no dataI am thinking I should stay with the strict on and infer off but am really slogging through getting this code correct.Running Win7 on Dual Quad Core XEON Intel Extreme with 8Gb RAM.
I am calling a GetSerialNo function But it showing some error like:
Cannot implicitly convert type 'decimal' to 'int'. An explicit conversion exists (are you missing a cast?).
Here is the code:
CODE:
I am writing a text editor program and I have written the new, open, save as, exit menu items but I am struggling with writing the save option.Now I have created the menu itself (well vb did, I just used insert standard items) but how do I code up the save menu option so that it updates the current document or if the documnt has not yet been saved bring up the save file dialog.Here is the code I have so far
Public Class Main
Private Sub NewToolStripButton_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles NewToolStripButton.Click, NewToolStripMenuItem.Click[code]....
I know I have some finishing touches such as messages and error handling and stuff but at the moment I want to get all the basics working,I think the save menu option is all I am struggling with at the moment.
I have to take over a project written in vb.net, which contains more than 400k lines of code written in option strict off mode. I want to build it under option strict on first before I do anything else -- which maybe converting it into C#. I found there's thousands of lines of code raises compilation error, mostly are about implicit type casts. Is there any tool would help to make it compile under option strict on mode if I don't want to correct every single line manually? Because it's really painful to add CStr/CInt invocation into every line of Code myself.
View 3 RepliesI turned Option Strict On and i get an error on all the ".Cells" lines saying option strict on disallows late binding.
a = 1
b = 3
c = 2
d = 1
With oSheet
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I want to use explicit conversion (CType function in VB.NET) to convert the variable d from double type to integer type and store the result as 132.
Imports System.Console
Module Module1
Sub Main()
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This is my code. But Visual Basic tells me an error: Error1Type 'i' is not defined.C:\Users\mihaispr\Desktop\Conversie explicita\Conversie explicita\Module1.vb1922Conversie explicita
Following is my code. Private Structure DISPLAY_ELEMENT_TYPE
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Actually this is vb6 to .net converted code. I m getting compile error at following line
temp = Lset(DispElem(i)) bcz Lset is not supported in .Net Lset accept string data type for first parameter and interger for second.If you know any alternet solution or if you have any source code for Explicit convert UDT to string type and vice versa.
Is an implicit declaration basically an explicit declaration without the "Dim" statement preceding it?
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