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It will now launch two instances, right?
There's some articles here on preventing a second instance of your app, and how to send the starting-params to the first instance of the application, before exiting.
That way the first instance of the app could receive the params for the second instance and do it's work, while the second instance exits.
Bastard Programmer from Hell 
If you can't read my code, try converting it here[^]
"If you just follow the bacon Eddy, wherever it leads you, then you won't have to think about politics." -- Some Bell.
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Unfortunately it's not an app  but a vb-script. I try to converted it and work like you describe
thanks
I'll get back later; Maybe a lot later 
Jan
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I have a TreeView control within the main form. The main form processes the normal
drag/drop event processing. The drag/drop operation performs successfully except for this
little problem.
When I do a DoDragDrop() operation within the TreeView, when dragging the mouse 'within' the
TreeView, the main form receives drag drop events. I only want the 'main form' events when the mouse is within the main form client area. What have I missed?
Thanks
Private Sub FolderTree_Drag(ByVal sender As System.Object, ByVal e As System.Windows.Forms.ItemDragEventArgs) Handles MyBase.ItemDrag
If e.Button = Windows.Forms.MouseButtons.Left Then
Dim node As TreeNode = CType(e.Item, TreeNode)
Dim dataObject As New DataObject()
Dim sFiles As New StringCollection
sFiles.Add(node.FullPath)
dataObject.SetData(ConstDragDropFormat, sFiles)
' Invoke the drag and drop operation
DoDragDrop(dataObject, DragDropEffects.Copy)
End If
End Sub
I have tried this code in the TreeView but it does not help.
Private Sub TreeView_DragEnter(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles MyBase.DragEnter
e.Effect = DragDropEffects.None
End Sub
Private Sub TreeView_DragDrop(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles MyBase.DragDrop
e.Effect = DragDropEffects.None
End Sub
Private Sub TreeView_DragOver(ByVal sender As System.Object, ByVal e As System.Windows.Forms.DragEventArgs) Handles MyBase.DragOver
e.Effect = DragDropEffects.None
End Sub
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Hi there
Is there any method for IPC between VBS and C#?
Hope to use Sendmessage API, but I couldn't find any example how to send message from VBS
If you also suggest other way to send message from VBS to C#, It would be very appreciated
Thank you
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What are you really trying to achieve ...?
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There is no IPC between languages. There is between applications.
You haven't described what you're doing in VBS and in the C# code, not even what kind of app you've written in C#. Is this a COM component, a Windows Forms app, WPF app, ... ? What?
VBS cannot directly call Win32 functions, including SendMessage, but it can be done using a custom COM-component.
You're going to go into a lot more detail about what you're doing to get any meaningful answer.
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Oh, I'm sorry to give any detail that I want to do.
Because I'm beginner here, just thought WPF is the only APP for C#, I applogize
My plan is, send data from VBS to WPF app.
I mean, Communication Between two programs in local computer not through the internet
For example,
Dim Data = "Hello"
I want to transmit "Hello" from VBS to WPF APP, and invoke popup message from WPF APP as "Hello"
If I can make two-way communication between VBS and WPF APP, it would be the best
but, To build VBS for Trasmission and WPF for Reception is also enough
Thank you
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A better what to do that would be to use an Inter Process Communication method (IPC), like named pipes or memory mapped files.
The problem here is that VBScript doesn't have any native way to do any kind of IPC. It would take writing a COM-based component that your VBScript code can use (see the CreateObject function) to handle the IPC heavy lifting.
You would also have to implement the "server-side" of the communication channel in your WPF app.
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Dear friends
please help me how to deal with this error object variable with block variable not found not found
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You have to show us the code that is causing the error for us to even have half a chance of helping you!
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You haven't supplied the code you're having a problem with and you expect someone to be able to help you?
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unable to create a win-from for mailing 2 many clients using vb.net
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You have our sympathies.
=========================================================
I'm an optoholic - my glass is always half full of vodka.
=========================================================
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Dear Friends at code project,
The code i use is as follows
Private Sub BtnExcel_Click(sender As Object, e As EventArgs) Handles btnExcel.Click
Try
Dim MyConnection As System.Data.OleDb.OleDbConnection
Dim dataSet As System.Data.DataSet
Dim MyCommand As System.Data.OleDb.OleDbDataAdapter
Dim path As String = "C:\Users\Abhimanyu Singh\Documents\excel\SalarySlip.xlsx"
MyConnection = New System.Data.OleDb.OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source=" + path + ";Extended Properties=Excel 12.0;")
MyCommand = New System.Data.OleDb.OleDbDataAdapter("select * from [salaryslip$]", MyConnection)
dataSet = New System.Data.DataSet
MyCommand.Fill(dataSet)
DataGridView1.DataSource = dataSet.Tables(0)
MyConnection.Close()
Catch ex As Exception
MsgBox(ex.Message.ToString)
End Try
End Sub
End Class
It works well for a single Excel file but if i try to open another fileit gives me error
"OBJECT VARIABLE OR WITH BLOCK VARIABLE NOT SET"
IAM NOT ABLE TO MOVE AHEAD PLEASE SUGEST REMIDIES
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Again. Without the code you're using and a description of any problem or errors you're having, it's impossible for anyone to help you.
Stop typing as little as possible.
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I'm using ToolStripProfessionalRenderer to customize a toolstrip. The toolstrip buttons are generated programmatically as needed. The program starts with three buttons. I'm using a LinearGradientBrush to paint the ToolStripButtons, but only the first one (left) gets the gradient. Using the renderer is new to me, so I'm probably missing something obvious.
Private Sub menuRndr_RenderButtonBackground _
(sender As Object, e As ToolStripItemRenderEventArgs) _
Handles Me.RenderButtonBackground
Try
If e.ToolStrip.Equals(main.tabs) Then
Dim p As New Pen(Brushes.Black, 1)
Dim lgb As New LinearGradientBrush(e.Item.Bounds,
Color.SteelBlue,
Color.WhiteSmoke,
LinearGradientMode.Vertical)
e.Graphics.FillRectangle(lgb, e.Item.Bounds)
e.Graphics.DrawRectangle(p,
New Rectangle(New Point(e.Item.Bounds.Left, e.Item.Bounds.Top),
New Size(e.Item.Bounds.Width, e.Item.Bounds.Height)))
End If
MyBase.OnRenderItemBackground(e)
Catch ex As Exception
MsgBox(ex.ToString)
End Try
End Sub
Sometimes the true reward for completing a task is not the money, but instead the satisfaction of a job well done. But it's usually the money.
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Hi Gerry this is Doss. Thanks for your advice.
Then I try something altered my code with your advice. Finally I get the result. MDI Child form is do transparent. First i put the code in the parent form and put the code in a child form. It is worked OK.
At the same time i want see the contents of controls another child form behind the transparent child form but the transparent child form didn't show the contents of other child forms. what can i do. please help.
And how can i upload a sample images of my project result?(sorry my poor language)
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You have to post such of content to an author of article (under the article). Use "Have a question or comment" widget.
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This is supposed to be a reply to a solution in QA[^]. You have already posted it as a comment there. DO NOT post it in the forums. It makes absolutely no sense here.
"These people looked deep within my soul and assigned me a number based on the order in which I joined."
- Homer
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This keep generating an error...
Dim number As Integer
number = Convert.ToInt32(Console.ReadLine())
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That's because whatever you're typing on the command line isn't convertible to an integer. An empty string is NOT convertible.
Forget using Convert and use Integer.TryParse instead.
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Console.ReadLine Method (System) | Microsoft Docs returns string. So, you have to define string variable, read line from console and then convert string into integer. Please, use Int32.TryParse Method (System) | Microsoft Docs:
Dim ci As System.Globalization.CultureInfo = New System.Globalization.CultureInfo("PL-pl")
Dim format As System.Globalization.NumberStyles = System.Globalization.NumberStyles.AllowLeadingSign
Dim line As String = Console.ReadLine()
Dim number As Integer = 0
If Int32.TryParse(line, format, ci, number) Then
Console.WriteLine($"You have entered {number}")
Else
Console.WriteLine($"Can't convert '{line}' into number!")
End If
Good luck!
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Hello.
I have static library and I need to add it to VB project.
How can I do it ?
I am working in VisualStudio 2013
Thanks in advance.
Andrii.
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That depends on what you mean by "static library".
Is this supplied in a .DLL? Where did this library come from? Is this COM-based? A function library? Got any documentation on it?
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Hello everyone ,
I am trying to retrieve XML information, I managed to recover the attributes against the childrens (<pre><ToolLine Text=" )they are not recovering below my code and the form of my XML file:
XML template :
<pre lang="xml">
<?xml version="1.0" encoding="utf-8"?>
<Root>
<ToolsList>
<Tool PartNumber="0018B">
<ToolLine Text=" FI : 3897" />
<ToolLine Text=" PINCE1 Reference : M 22520/2.01" />
<ToolLine Text=" Position : 2.02" />
<ToolLine Text=" Reglage : 7" />
<ToolLine Text=" PINCE2 Reference: M 22520/7.01" />
</Tool>
</ToolsList>
</Root>
Code C#:
<pre lang="vb">Imports System.IO
Imports System.Xml
Module ParsingUsingXmlDocument
Sub Main()
Try
Dim m_xmld As XmlDocument
Dim m_nodelist As XmlNodeList
Dim m_node As XmlNode
'Create the XML Document
m_xmld = New XmlDocument()
'Load the Xml file
m_xmld.Load("D:\Users\Desktop\Xml to excel chahine\U881A1013_105_A_PREP_1.xml")
m_nodelist = m_xmld.SelectNodes("/Root/ToolsList/PartNumber")
'Loop through the nodes
For Each m_node In m_nodelist
Dim partnumber = m_node.Attributes.GetNamedItem("PartNumber").Value
'Get the firstName Element Value
Dim text1 = m_node.ChildNodes.Item(0).InnerText
Dim text2 = m_node.ChildNodes.Item(1).InnerText
Dim text3 = m_node.ChildNodes.Item(2).InnerText
Dim text4 = m_node.ChildNodes.Item(3).InnerText
Console.Write("partnumber: " & partnumber _
& " text1: " & text1 & " text3: " _
& text3)
Console.Write(vbCrLf)
Next
Catch errorVariable As Exception
'Error trapping
Console.Write(errorVariable.ToString())
End Try
End Sub
End Module
if you have any ideas do not hesitate to help me, thanks in advance
after a question how can I implement this information on an excel file
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