byte[] imageData = new byte[]; SqlCom.Parameters.Add(new SqlParameter("@ImageData", (object)imageData));
which makes the imageData variable as an object.But How do i do this in Visual Basic??
Dim imageData As byte() = new Byte() SqlCom.Parameters.Add(new SqlParameter("@ImageData", ?? ) <-----What Should i do here?
My code is like this
conn.Open() Dim cmd As SqlCommand = New SqlCommand("SELECT PhotoID From Photo " & str8 & " And Photo = @Photo", conn) cmd.Parameters.AddWithValue("@Photo", CType(Photo, Object))[code]....
It comes out error like this:The data types image and varbinary are incompatible in the equal to operator. What should I do?
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?
I am getting following error whenever I want to use IIf function inside entity framework query.
LINQ to Entities does not recognize the method 'System.Object IIf(Boolean, System.Object, System.Object)' method, and this method cannot be translated into a store expression.
I get an error :FatalExecutionEngineError was detectedMessage: The runtime has encountered a fatal error. The address of the error was at 0x79e71bd7, on thread 0x11f0. The error code is 0xc0000005. This error may be a bug in the CLR or in the unsafe or non-verifiable portions of user code. Common sources of this bug include user marshaling errors for COM-interop or PInvoke, which may corrupt the stack.How do I translate it correctly ?
In my VB 6.0 code, I declare have the following line[code]...
However, in VB.NET, I get the error "expecting declaration". Isn't this a declaration statement? Is there a good reference for finding the differences between VB.NET and VB 6.0?
I need to get the customer name from the user as in combo box when the user selects the user I want that selected customer name should be searched in the sql table (here table name is "obbalance") and all the entries in the table having the name as the selected customer naem it should be shown in the data grid view
cmd.Parameters.Add(New SqlParameter("@p1", SqlDbType.NVarChar).Value = ComboBox1.SelectedItem.ToString) cmd = New SqlCommand("select obbalance from balance where custname=@p1", con) dr = cmd.ExecuteReader() Form2.Show()
After this also it shows a error. It shows error in declaration.
Can anyone tell me how to declare updareresource api in vb.net . i searched pivoke site i didnt found example for vb.net and also show me an example please explaining its parameters
What is the right way to declare an array Dim lblname As Label() = New Label(get_num_of_children()) {} Dim mealcheck As Integer() = New Integer(get_num_of_children()) {}
I have a form with 2 controls, a textbox and a button. The user will type text into the textbox and then when they click the button the text that they entered will be added to a List Collection. You can see the code below. There is just 1 problem. Where would I put my declaration of my List Collection so that it holds the values and does not start at the first element everytime the button is clicked?[code]
Is it at all possible to declare variables dynamically? Something like Dim Answers & i As ArrayList. What I'm trying to achieve is putting one or more answers to a question into an array. Or should I really be looking at a mult-dimensional array to store the question number and answer? How would I add to and access a multi-dimentional array? Anyway, here's the section of code:[code].......
Dim proxy As USImportoerServiceTypeClient = DMRUtils.CreateAndConfigureClient() Dim request As New USDeclare_I() request.DeclareCollection = New US_ITypeDeclare() {}
[code]....
This above code do not work, becase the "US_ITypeDeclare() {}" is empty an only contains a new DeclareCollectionStructure
declare a KoeretoejErklaeringStructure to this an set this date value til "DeclareCollectionStructure.DeclareCollectionValidDate" ?
I have been debugging my code for a while and looking at posts in other forums, but it seems to be that everyone has a different problem than mine and what works for them will not work for me.My dropdown list is supposed to filter a gridview by choosing all the Companies that are associated to a certain product. The solution I have found online is that most people did not have DataKeyNames set in their gridview. I do have this set, but not to CompanyID. It wouldn't make any sense. So I have no idea what I am supposed to do since this is the only answer I have found.
I mean why? I mean to organize things I often turn modules into classes where all the methods are share.But then I thought, why not organize them into namespace?But then we can't declare constant in namespace.