In c# i could do it like: send.Write((ushort)9);
"send" is an instance of BinaryWriter, how can i do it in vb.net ? I've tried it like:
send.Write((UShort)9)but i get "UShort is a type and cannot be used as an expression"
E.g. how do I get VB.Net to statically type a local variable to be the static type of the expression on the right had side of the assignment?
View 1 Replies. I get this error: "Cannot convert lambda expression to type 'string' because it is not a delegate type" - keyword select become underlined in blue
[Code]...
Above code should displays drop list of employees first name and last name in a combo box
I'm trying to create a dynamic html page from vb.net. Here is my code. I get the error "'DataTable' is a type and cannot be used as an expression" ' Create a new XML document.
Dim xmlDoc As XmlDocument = New XmlDocument
' Create the html tag.
Dim xmlRoot As XmlElement = xmlDoc.CreateElement("html")
xmlDoc.AppendChild(xmlRoot)
[code]...
c# 's ' (ushort)0x0090 ' equivalent in .net?
View 8 RepliesThis is my window based project since many years ago. I have a public class, and I wanted to have two functions that return 2 different forms that i have in the project.
Below is the code that I'd tried but I got 'FormABC is a type and cannot be used as an expression' error message.
Public Function ShowEForm() As Windows.Forms.Form
Return FormABC
End Function
When I use "preview data" for OleDbDataAdapater i got a error "type mismatch in expression".
This is a query generated with VB's "query buider".
[Code].....
'Update' is a type and cannot be used as an expression. I've searched the forums and lowercased letters with no success.
Here is my code:
Dim SupplierContactNum As String = dataList1.DataKeys(e.Item.ItemIndex).ToString
Dim SupplierContact As TextBox = CType(e.Item.FindControl("EditSupplierContactTB"), TextBox)
Dim TitlePosition As TextBox = CType(e.Item.FindControl("EditPositionTB"), TextBox)
Dim SupplierPhone As TextBox = CType(e.Item.FindControl("EditSupplierPhoneTB"), TextBox)
[code]....
I have a function which creates a different type of expression depending on the value of the variable passed in.[code]...
View 1 RepliesPossible Duplicate:How do you return 'not uint' in C#? I'm trying to convert the following from VB.NET to C# and I'm getting a syntax error.
VB.NET:
Dim CurrentCRC As UInt16
CurrentCRC = &HFFFF
[code].....
I have to pack and unpack a 16bit Int from/into a Ushort in VB.net This is how I thought I could do it (doesn't work, gives me overflow exception)
'Pack Int16 into ushort '
Dim usPacked = CType(Data, UShort)
'unpack Int16 from ushort '
Dim unpacked = CType(data,Int16)
Here is some code I am trying to use to read a UShort and UInteger from a filestream[code]...
View 2 RepliesWhy I am getting this error frmProduct' is a type in 'Test' and cannot be used as an expression.
Below is the code.
[Code]...
Im trying to use a replace function ...that replaced bad words out of a textbox I found this example on the net but there is a little error
this is my code
Function ReplaceBadWords(InputComments)
Dim badChars, newChars, i
'create our array of bad words
badChars = Array("rubbish", "crap", "shit")
[code]....
the error is 'Array' is a type and cannot be used as an expression'
basically i have 16 checkboxes that indicate the status of digital inputs, either checked or unchecked, but rather than adress each and every one of them with a pile of repetative code, i set up a for-next loop and tried to change the status of the checkboxes with - is for index = 0 to 15, if blah=true then checkbox(index) = checked else checkbox(index) = uncheckedBut i get error- checkbox is a type and cannot be used as an expression.
View 1 RepliesI have some problems with a for loop in visual basic.
Public Const numofblocks As Short = 88
Public Shared blocks(numofblocks) As PictureBox
For x = 1 To numofblocks
blocks((x)) = PictureBox(x)
Next
The error raised at the picturebox statement: PictureBox' is a type and cannot be used as an expression. The result of this for loop is that every picturebox in the designer form is named: blocks([number of picturebox]). I need this for some other for loops.
I have a project with 7 forms. I wanted to change the startup form for testing, but in the project properties application tab under startup form, only 3 of my forms show up as available. So I manually edited the Application.myapp file and changed the MainForm tag to frmSearch. I checked the property pages and now frmSearch is listed in the dropdown, and it is selected.
Run I compile I get an error:
Error 1 'frmSearch' is a type in 'MyTestApp' and cannot be used as an expression. C:Documents and Settings...My ProjectApplication.Designer.vb 35 27 MyTestApp
frmSearch is a form, just like other forms that work as the startup form.
I am trying to make a program to configure IE's proxy settings. I have made this code to change the settings:
Public Class setproxy
Public Structure Stwruct_INTERNET_PROXY_INFO
Public dwAccessType As Integer
[Code].....
dealing with a C++-DLL I get a pointer (thepointer as IntPtr) to an array as return value. The pointer indicates the first bit in memory where an array of UShorts is stored. I know the size (thesize as Integer) of the array and want to read it. Marshal.Copy does not support UShort. As the values stored in the named array can exceed 32767 working with Shorts will not do. I tried to work with structures but the array of UShorts in my structure is not populated using: [Code] Does anyone have an idea how to get the array of UShorts out of the pointer position or see a mistake in my code?
View 2 RepliesIf I run the following code in C# then it runs fine
UInt32 a a = 0x9E3779B9
But when I run the same code in VB.Net then it gives me error "Constant expression not representable in type 'UInteger'"Dim a As UInt32 a = &H9E3779B9
I am trying to assign a constant with this value:
Public Const FIRST As UInteger = (0UI - 860UI)
I am developing a vb.net application with MS Access Database . I have a field(cut) with double data type in table marks of markss.mdb.[code]On debugging , when I enter ,say 7.9 , in Textbox 1 ,I get an error saying Data type mismatch in criteria expression.
View 1 RepliesI am using parameters in my code to update records in an access database.
One of the fields I am using in my sql Query Update statement is the ID field and it is causing this error -
Data type mismatch in criteria expression.
I have isolated the error and it occurs with the ID field in the Update query.
The DataType for the ID Field in Access is AutoNumber, Field Size is Long Integer and New Values is Increment.
In my code I have declared the Data Type as Integer.
Is there an obvious mistake in my code?
[Code].....
I have a reader that pulls dates out of a database, and saves them in a list.
dateList As New List(Of Date)
Probably a simple problem but I'm failing to see how or why it's happening.
The error message I'm getting is Data type mismatch in criteria expression.
My coding is below:[code...]
The error is coming up when i'm filling the dataset, i've already figured that it works when the WHERE is removed.
So i'm assuming the mismatch must be from (VirtualLearningExercises.Level = '" & UserLevel). UserLevel is defined as a integer in vb and VirtualLearningExercises.Level is data type number on access.
I've had this problem many, many times. And it's always turned out to be a small typo or "" around an integer, but I just cannot find what's wrong with my SQL Statement this time! SELECT Card_ID FROM Payment WHERE Customer_ID = 12 AND Card_Number = 1231231231231231 The table and fields are named correctly (the table is actually a query).The only thing I can think of is the card number being too large, however it works fine in my INSERT INTO statement!All of the fields are formatted as their respective data types, ie. Integers are set to integer, not string.
View 7 RepliesI run a query on Access and although it warns me about null fields, it can still run the query and add the rows.However, when I run through JET in VB.NET, it says "Data type mismatch in criteria expression".Is there a way for JET to behave like Access (ie. still run the query and add the rows)?
View 1 RepliesI am getting this error when create new record.
Data type mismatch in criteria expression.
Code:
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim com As New OleDbCommand
Dim d As Integer = 0
Dim result
[Code] .....
I'm trying to update ms access data using vb.net and here's my code:
updateuserclass.vb
Public Class UpdateUser
Dim bankai As New Updater
[Code]...
What might be wrong in here?I set it all to string, is the primary key usernum not a string.
i get a problem like this OledbException Data type mismatch in criteria expression. in ad.Fill(xDataset, "TblMaster") i'm using access database And Telerik Reporting
Public Sub TanggalX()
conn.Open()
Dim str9 As String = "Select * From TblMaster Where Tanggal='" &
[code]......