I'm fairly new to learning visual basic. I'm trying to create a program that dynamically generates a EXE file that performs mouse movements and keystrokes. To dynamically generate EXE files, I am using the CODEDOM API for Visual Basic.
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How do you pass a control (say a textbox) to a function as a parameter in compiled assembly using CodeDom? I've tried passing through the args in the Invoke method but it doesn't work.[code]...
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What needs to be done to properly declare the function using vb.net
I am using the command
Public Declare Sub subname Lib libname ()
g,
Public Declare Sub test_dllsub1 Lib "C:/path/dllname.dll" (ByRef arg As Double)
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I have a list box that allows multiple values to be selected.Here is my query for my gridview
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then before the query is run i use to subtract the final , so i dont get an error and i have to use textbox1.text in my query and not the parameter. that is slower and sql injection,
Marshal attributes to be passed as an argument in this Declare statement? [code]...
View 3 RepliesI have this H file in C, which includes[CODE]...
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 ?
How would I declare a nested function in VB.NET? For example, I want to do something like this:
Function one()
Function two()
End Function
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How can we declare a thread for function in vb.net Actually i have to declare nine functions which takes the oracle command as input parameter and return multiple values ( return types will includes datatime,string and a datatable ) . So to return multiple values from function , i have declared a structure and returning as a structure.but now the issue is !!! : As the thread is a void type and doesnt accept return types which function returns ... Now how can i declare thread for a function which accepts and returns arguments.
Public
Shared
Function Function1(ByVal
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Public Function manyarrays(ByVal ParamArray ints() As Integer,ByVal strs() As String) End Function But it is error . How can i fix it ?
View 3 RepliesI notice in the MSDN documentation that there are multiple ways to declare a reference to a function in an external DLL from within a VB.NET program. The confusing thing is that MSDN claims that you can only use the DllImportAttribute class with Shared Function prototypes "in rare cases", but I couldn't find the explanation for this statement, while you can simply use the Declare keyword instead.
View 3 RepliesI have the following statement, I want to turn it into a Public Shared Function :
If isEmployee Then
Dim employeeInstance As New Employee
employeeInstance = GetEmployeeInstanceByUserId(userId)
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Public Shared Function GetWorkerInstance(Byval isEmployee as Boolean) As ...(not sure what to write here)...
There two possible return Type. I'm not sure what I should declare for the function return type.
I need to execute a stored function in oracle or sql through vb.net. I created a command object. Depending on the database type(oracle or SQL) i am preparing the Command text as Select functionName(?,?,?,?,?,?,?,?) from dual; (For Oracle) Adding the parameter values of the function. Now performing the ExecuteScalar which is not working saying invalid parameter. This works with ODBC connection string. But ODBC doesn't with 64bit. My Requirement: Code should execute a user defined stored procedure by taking the values at runtime.
View 1 RepliesWhen I declare two datatables and fill them both from a datatable returned by a function in class, that when i filter the one it seems to filter the other aswell?
For example:
I declare the datatable and initiate my class:
Dim DatatableOne As New Datatable
Dim DatatableTwo As New Datatable
Dim MyClass As New MyClass
I then call the function that returns a datatable and apply it to datatable1 and 2 Then fill two DataGrids with the table:
DatatableOne = MyClass.GetTable()
DatatableTwo = MyClass.GetTable()
DatatableOne.DefaultView.RowFilter = "Name = 'Tom'"
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For some reason i don't understand but both grids end up with the filtered data?
i want to know how to use vbscript to declare the function that handles the button onclick event or set a function that handles all button onlick event! both will do i.e） ihave a function
"sub xxx()
end sub"
and i generate the buttons using vbscript. i can declare the button id, text without problem.
--dim obj as new button()
obj.id="aaa"
obj.text="ooo"
the above lines work just fine but when i write obj.onclick = "xxx", it doesn't work. by making settings on the function to handle all button onlick event is also acceptible for me!
I'm trying to add the export to word capability to my code and adding the following to my code gets me some warning and errors. I was able to find a download sample code to do this, however it's strange, when I run the downloaded code, it didn't encounter error but I put this together with my code it produced some errors.
Option Explicit On
Option Strict On
Imports System.IO
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Can you set a condition inside the string.format parameter.So if i have
string.format("{0}" , if x = 7 then return "SEVEN" else return "ZERO")
Is there a way of doing this?
if I have the following vb code,
for i = 0 to dTable.Rows(i).Count -1
Dim sql As String = ""
Dim strConn As String = ConnString
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Is it possible to use 2 exists function in 1 sql statement. Below are part of my
select m.ModuleName,sh.Day,sh.Time,sh.Venue FROM Module m INNER JOIN Schedule sh ON m.ModuleID = sh.ModuleID INNER JOIN Student s ON sh.StudentID = s.StudentID WHERE EXISTS (Select * FROM MsgIn WHERE MsgIn.MsgNumber = s.Phone) AND WHERE EXISTS (Select * FROM MsgIn WHERE MsgIn.MsgContent LIKE '%MON%' = sh.Day)
I tried to do like this but an error occured.
The following works:
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However, the following doesn't work:
I have this code:
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EDIT: CELL_VALUE_FLOAT is a Nullable(Of Double) and CELL_VALUE_INT is a Nullable(of Integer) In Quickwatch the condition evaluates correclty to False, but when running the If() function evaluates to the True part.
I know normaly you have to use Return before "End Function", but now the Return is in the Try and Do statement and I can't find a way to variable the Return.[code]...
View 7 RepliesI am a little confused about the use of a return statement in a function. If I understand correctly the return statement returns a value but where? Where is the value being returned to?
View 1 RepliesI have a multiple-value-single-string as a parameter field in a report in Report Builder 3.0 (e.g. 20124, 20125). Now I want to split up this string, and show "Summer 2012" instead of "20124" and "Fall 2012" instead of "20125. I am using Visual Basic. Here is my two functions I have made in Report Builder 3.0 custom code. The error is in the second function in the "If Right(yearterm)..." line. It gives me a syntax error. If I write "String.Right" it gives me the error: "'Right' is not a member of 'String'". If i take out the whole "If statement" the report will run but "20124,20125" gives me this: ", 2012, 2012".
Public Function SplitParameterValues(ByVal parameter As Parameter) As String
Dim result As String
Dim a(0 To 10) As String
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I have 2 functions that need to work together.1 function is to generate a chart number. The other function is to search via SQL to see if the chart number exists. if the chart number doesn't exist then i need function 2 to return a boolean value so function one can generate a new chart number example code: [code] Now i know that i am probably using the incorrect sql statement, my main issue is that i dont know how return available back to the function.
View 1 RepliesI have something that I want to do and what looks very simple, but I cannot get it to work. I want to build a function that gets as input a xdocument and some other strings. It should have a return that contains a filtered part of the xdocument in a way that I can use it as input for a new Linq function. This is what I mean:
Private Function fncGetFilteredDecendantsOfNode(ByVal xdocDoc As XDocument, _
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I have trouble with my vb application.I create query in dataset like this :Select * from Trans where year(dateTrans)=2009 and month(dateTrans)=5But is not work and error message : year and month function not identified, what is the problem ? what a sql date function ?If i create databound from dataset and drag n drop date field in form with datetimepicker control, if i had update dataset, date field is empty.Whats wrong with datetimepicket databound.
View 5 Replies1. I would like to know why a Return statement is needed in the function in the first set of code, but not in the second(even though it still works with the Return statement). The functions are called the same way, so what is the difference?2. Why in the second code, the variable FutureValue is allowed to have the same name as the function? But when, in the first set of code, I try to rename the variable "discountPercent1"(in the function) to the function name "SetDiscountPercent", VB 2008 Epress gives the error message "The name conflicts with an existing symbol with the same name"?
Public Class frmInvoiceTotal
Private Sub btnCalculate_Click(ByVal sender As System.Object, _
ByVal e As System.EventArgs) Handles btnCalculate.Click
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I am using a two-dimensional array of 10 elements, but my code is extremely slow.
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I create a new empty array with every iteration of the for loop. Is there a way I can use the same array but just clear it instead?
How to declare two object in one statement for vb.net?
Example
If IsNumeric(TextBox1.Text),(TextBox2.Text) Then
lbl_answer.Text = Val(TextBox1.Text) + Val(TextBox2.Text)
Else
MsgBox("Error only number can be calculate")
End If
I can do
if isnumeric(textbox1.text) then
But I can't say
if isnumeric(textbox1.text), (textbox2.text)
How can I do so?