Solved

add MRU List o Contextmenustrip in vb.net

Posted on 2010-08-18
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973 Views
Last Modified: 2013-11-27
Hi Experts,
My Windows desktop application has menu to open database files. I want to display 5 most recently used files as a contextmenustrip items. I have code to add it as a File Menu Item. But i am not using any menus. It is all graphical with big buttons and the button has contextmenustrip attached to it. How do I read these MRU files names and assign them dynamically to contextmenustrip? I am using Visual Studio 2008.
I will appreciat your help.
Thank you
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Question by:RekhaShah
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10 Comments
 
LVL 17

Expert Comment

by:nepaluz
ID: 33469127
where are you storing the file paths? In an array, list of string ....?
0
 

Author Comment

by:RekhaShah
ID: 33469284
I am storing my list in a public array. But how do i trigger the event to open the file?
0
 

Author Comment

by:RekhaShah
ID: 33469358
in the form load even, I call LoadMRUList. Then I add those list items to my contextMenustrip

For i = 1 To 5
            If MRUListArray(i) <> "" Then
                Me.MRUContextMenuStrip.Items.Add(MRUListArray(i))
            End If
Next
So i can add 1 file. But next time I open a different file, I need to add this to mru list. If kind of replaces the first one and I always have only one entry.
If you have a sample code, will be great. Thanks

Private Sub LoadMruList()
        Dim file_name As String
        For i As Integer = 1 To m_NumEntries
            ' Get the next file name and title.
            file_name = GetSetting(m_ApplicationName, _
                "MruList", "FileName" & i, "")

            ' See if we got anything.
            If file_name.Length > 0 Then
                ' Save this file name.
               MRUListArray(i) = file_name
            End If
        Next i
    End Sub

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LVL 17

Expert Comment

by:nepaluz
ID: 33469397
Click on the context menu and then double click on the menu item, you should get this:

   Private Sub ToolStripMenuItem1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles ToolStripMenuItem1.Click

    End Sub

and trigger your routine inside here, or you could add a handler everytime you add a menu (ie file path) to the menu

0
 
LVL 17

Expert Comment

by:nepaluz
ID: 33469431
the handler you can make for that islike:

AddHandler ToolStripMenuItem1.Click, AddressOf sButton

and sButton will be just like above

   Private Sub sButton(ByVal sender As System.Object, ByVal e As System.EventArgs)

    End Sub
0
 

Author Comment

by:RekhaShah
ID: 33469688
let me get back to you tomorrow on it after trying out your suggestion. Thanks
0
 

Author Comment

by:RekhaShah
ID: 33470002
I have 3 buttons. 1. Open New File:  
2. Open Existing File:I show OpenFileDialog
3. 3rd button would have Recently used database list(as a contextmenustrip). So when I click on this third button, it would display MRU, and upon clicking on one of the files, it would open this existing file.  
it seems preety straightforward, but I can't seem to get it to work the way I want. If I had it as a menu item it would be very simple. i will appreciate if you have sample code(comlete code) to handle the click even on mru button.
0
 
LVL 17

Accepted Solution

by:
nepaluz earned 500 total points
ID: 33470165

Dim MRUListArray As Array = Nothing
'populate your array here then
Dim MRUContextMenuStrip As New ContextMenuStrip
For i = 1 To 5
If MRUListArray(i) <> "" Then
MRUContextMenuStrip.Items.Add(MRUListArray(i))
End If
Next
AddHandler MRUContextMenuStrip.ItemClicked, AddressOf sButton1
 

Private Sub sButton1(ByVal sender As System.Object, ByVal e As System.EventArgs)
Dim sItem = DirectCast(sender, ContextMenuStrip)
'now you can get the value of the item clicked by
File.Open(sItem.Text, FileMode.Open)
'or
File.Open(sItem.Name, FileMode.Open)
'depending on where you saved the full path
End Sub
0
 

Author Closing Comment

by:RekhaShah
ID: 33476566
Hi,
I got it to work. Your solution was partially correct, instead of adding handler to button, I was suppose to add handler to ToolStripItem.  Attaching the code for reference. This works. Thak you for guiding to the correct direction.

Here is the correct code that works.
Hi,
I got it to work. Your solution was partially correct, instead of adding handler to button, I was suppose to add handler to ToolStripItem.  Attaching the code for reference. This works. Thak you for guiding to the correct direction.
0
 

Author Comment

by:RekhaShah
ID: 33476580
Here is the correct solution that works.

Private Sub MDIParent1_Load(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles MyBase.Load
        Dim tsi As ToolStripItem
        m_MruList = New MruList(APP_NAME)
        For i As Integer = 1 To 5
            If MRUListArray(i) <> "" Then
                tsi = MRUContextMenuStrip.Items.Add(MRUListArray(i))
                tsi.Name = "P" & i.ToString("00000")
                AddHandler tsi.Click, AddressOf tsi_Click
            End If
        Next i
        btnMRU.ContextMenuStrip = MRUContextMenuStrip
    End Sub

    Private Sub tsi_Click(ByVal sender As Object, ByVal e As System.EventArgs)
        Dim tsi As ToolStripItem = CType(sender, ToolStripItem)
        Debug.Print(tsi.Name & ", " & tsi.Text)
        MsgBox(tsi.Text)
    End Sub

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