VS 2005 Call A Method Present In A Dll?
Apr 13, 2010just created a classlibrary project named CreatingDll and i did this
Public Class Class1
Public Function getComboTable() As DataTable
Dim dt As New DataTable
[code]....
just created a classlibrary project named CreatingDll and i did this
Public Class Class1
Public Function getComboTable() As DataTable
Dim dt As New DataTable
[code]....
I working on a project that includes to call a certain type of method to each control, i have this
Private Sub txtBcNum1_KeyPress(ByVal sender As Object, ByVal e As System.Windows.Forms.KeyPressEventArgs) Handles txtBcNum1.KeyPress
[Code]...
This code works like a charm if i want to allow only numbers and backspace on my textbox.Problem: I have 15 textboxes( txtBcNum1,txtBcNum2,....,txtBcNum15 ), what's the best way to call this function inside KeyPress method on each textboxes with out manually adding it to KeyPress method?
When I run my application the following code prompts an error. Ideally, I want to populate the TxtOracleNo with a value read from another table on my form based on certain conditions i.e., prac_no, prac_eid and pay_method is the same in both tables then populate the Oracle No on TxtOracleNo text box.
The error given is
"Invalid attempt to read when no data is present"
The function is shown below
Private Sub Oracleview()
'Open the database.
'Delete any existing record
Dim cmd As New SqlCommand
Dim conn As SqlConnection = GetDbConnection()
[Code] .....
I checked that data in the database and it is available in both tables. Probably, the problem is where I call the function. Presently, I call it on loadform.
I'm trying to use the .NextResult() method of a DataReader but I get an error that no data is present.
The 1st query returns a value but the 2nd query is the problem.
Dim strSqlStatement As String = "Select Count(*) As TotalRows " & _
"From Parents " & _
"Where (FatherName = @SearchValue " & _
[Code]......
I want method which can check if microsoft office word spell checker is present. If version less than 2007 are there I check if ""C:Program FilesCommon FilesMicrosoftSharedProofMSSPELL3.DLL" this dll is present, but for officewe don't find this dllat this location. I'm looking for a method which will check for spell checker of the various version of Offices.
View 5 RepliesDoes calling the Dispose method on a Windows.Forms.Timer call it's Stop method? Or should I stop the timer before I dispose it?
View 5 RepliesI will try to explain what I need.Let's say that I have a class like this:
Public Class Example1 Public Sub ToBeCalled()
[Code]...
I have a Application that Crypts all Files in a Directory and the Subdirectories
Public Shared Sub CryptAllFiles(ByVal crypt As Object)
'check if this dir exists
Dim vDirInfo As New DirectoryInfo(vPath)
If Not vDirInfo.Exists Then Exit Sub
'get all files' sizes in current path
[Code]...
I did this code to iterate through the data present in the DataTable:
Imports System.Data.OleDb
Public Class Form1
Dim con As New OleDbConnection
[Code]....
But this code always gives the last value of a particular row as its output.
I want to specify a particular column and a particular row of the DataTable and fetch the corresponding result:How to do this?
The user will enter a folder name in the combobox1 and clicking the create folder button the folder will be created in the applications bin folder; For doing this, i did this
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
If ComboBox1.Text = "" Then
[Code]....
Now when the user enters a file name in the combobox2 and clicks the save button(Save button is not shown in the snapshot) then a .txt file with the name entered by the user in the combobox2 will be created in the folder whose name is specified in the combobox1.
i am using visual studio 2005 check my code and let me know what i am doing wrong
[Code]...
Can you maybe tell me what is wrong with this code?I get an error on the line were the writing is in red.
db.OpenConnection()
strSQL = "SELECT * FROM ChaletBookings WHERE BookingNo = '" & strBookingNo & "'"
dr = db.getData(strSQL)
[code].....
i want to compare a column present in the access database BankAccount table with a field present in the form named as account......
[Code]...
i want to which way is better when concentration is on processing speed. i want to call a method that compute some data that method is on another form in my windows form application then what you prefer is better way 1) to call that method in another form and use returned value or create similar method in form where it is required.i want to make it's processing fast.
View 3 RepliesI have created a datatable and now i need to print it,so i did the following:
Private Sub PrintDocument1_PrintPage(ByVal sender As Object, ByVal e As System.Drawing.Printing.PrintPageEventArgs) Handles PrintDocument1.PrintPage
Dim xPos As Single = 20
[CODE]...
The code works fine.But in the above code as you can see that i am printing the each rows content of the datatable one by one and after printing all the contents of a single row i am looping the code again for printing each and every row present in the datatable. So i want to know that inspite of printing each and every data present in the row of the datatable,is it possible to print the entire datarow at a time and then loop through all the rows present in the datatable?
Assume I have a function: Protected Sub UploadFile(file As String)
End Sub Then I can do the follwing
UploadFile(file)
But I would like to do this: file.UploadFile()
Looks like Im missing logic in here, but still - is it possible to make dot-like notation?
I have a class that runs as a thread. While the thread is running, I want to call a method in that thread. I do this commonly where a thread calls a method in the GUI with a delegate. But I'm confused how to do this when the called thread is not the GUI and there are no parameters passed to the called method.
View 8 Repliesmay I just ask a seemingly simple question for which I can't find any solution throughout all the VB.NET documentation: I have to call a (non-static) method of another object (instance!) based upon the name of the method (given as a string).
View 1 RepliesI have a Form1 with a method called OrdreUpdate2 I try to run thad method from another form by using the command Form1.Ordreupdate2 in a buttonclick.
But nothing happens..What am I missing here?
I have a form and I am calling a method from a module in that form. However, how to do i call the object into the method, since Me doesn't work.
Example:
in the module:
Function printname()
Console.WriteLine("Form called with is titled:" + me. text)
[code]....
In VB .NET, when you create a user control class, you have the obligation to call the sub InitializeComponent within the constructor.If you don't you'll a warning message like this: [code]What is the mechanism used to raise this warning? Is it something I can reproduce for my own functions?
View 1 Repliesi have a problem i use a call sub procedure to do a delete records in my database for my vb .. now i have a problem when i call my sub delete proceudre in like this call GetDelete("tblName") , but in the sql query the sysem declare like this delete * from 'tblName' in my sub procedure when i set the breakpoint in which cause an exception error "Syntax error in query. incomplete query clause " anyway how to delete the quotes so i can retreive it without error
View 2 RepliesIs it possible to dynamically load a .NET DLL and create an instance of a class inside it? I will know the name of the class.
View 5 RepliesWhen should I call the Flush() method (TextWriter.Flush() / StreamWriter.Flush() / BinaryWriter.Flush() / etc) ? Should I call it everytime I finish writing a stream?
View 3 RepliesI have a method written in VB.NET. It looks like this:
Shared Sub SomeMethod(ByVal Id As Guid,
Optional ByVal str1 As String = "foo",
Optional ByVal str2 As String = "")
I want to call this method from C# 3.0 and I want it to use its default arguments. I tried passing System.Reflection.Missing.Value, but I cannot cast it as String. Is there any way to do that?
I want to calculate the time taken by a method to execute.[code]...
View 11 RepliesI have a C# dll and want to use it in VB.NET. I'm using C# 2008 Express and VB 2008 Express. I have added a reference in a VB project to the C# dll. When I create an instane of a class in the C# dll, it gives the following error messsage: "Type 'RF.RabinFingerprint' has no constructors". My C# dll code:
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;[code].......
I have a method called ADD in a class that connects to a database. The database class name is XDB. I also have an object named XXX in it's own separate class with properties.One of the instructions for the Button named ADD click event is:
'Call Add method passing in the XXX object
So this is how I coded:
'declare a variable X as an object instance of XXX
Dim X As New XXX[code].....
I know it's wrong since it doesn't add the XXX and the form doesn't close but I don't know what I'm doing wrong.
REF: http:[url].....The above reference is where I got the code below.This code adds buttons to Form1. When a button is clicked a messagebox appears stating what button was clicked. I want to have the ClickHandler fill a RichTextBox on Form1 (I added a RTB to Form1). My problem is I can't do a Dim xForm As New Form1 to fill the RTB from the ButtonArray Class. I can place my file's text in a MessageBox so I know the code I added is correct. I also tried placing a Property method on Form1 and using a Accessor to fill the RTB, however it also requires Dim xForm As New Form1. How can I get my data from files to the RichTextBox on Form1 from the ClickHandler in the ButtonArray Class? See ButtonArray Class Below.
Imports System.IO
Imports System.Text
Imports System.Collections.CollectionBase[code].....
I am trying to call a method which has two parameters using thread. How can I do this? If I pass parameter to my thread.start() method, it is giving error.
View 1 Replies