Show text readme with choice from listbox

[+therealDamien Subscriber¹]

Im self educated on visual basic programming. so its basically a learning curve.

 

but need help with something.

 

 

using visual studio 2013 with visual basic net

 

working on map loader for a pc game.

 

there is a txt file with credits and info in the same directory as the maps.

 

so far I have a listbox that scans the directory and shows all the map files and then user selects the map and then clicks a start button and it loads the game with the map. 

 

but I also want to a have a txt box for the map selected showing the information for the map.

 

so what I want to do is when a user clicks on a map in the listbox,it will show a preview of the maps txt file in a separate box on the form.

[Eric Veteran]

If your description files have the same name as the maps other than the extension you could just use System.IO.Path.ChangeExtension to create the file name of the text object then load it with File.ReadAllText

 

    Private Sub ListBox1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListBox1.SelectedIndexChanged
        If ListBox1.SelectedItem IsNot Nothing And TypeOf ListBox1.SelectedItem Is String Then
            Dim selectedMap As Object = ListBox1.SelectedItem
            Dim mapDescriptionFile As String = Path.ChangeExtension(selectedMap, "txt")
            If File.Exists(mapDescriptionFile) Then
                TextBox1.Text = File.ReadAllText(mapDescriptionFile)
            End If
        End If
    End Sub

If they're not the same you can either build a dictionary with the map filename as the key and description filename as the value. Or if you want to be lazy you can use a ListView instead and set the Tag property to the description filename. :)

 

    Private Sub ListView1_SelectedIndexChanged(sender As Object, e As EventArgs) Handles ListView1.SelectedIndexChanged
        If ListView1.SelectedItems IsNot Nothing And TypeOf ListView1.SelectedItems(0).Tag Is String Then
            Dim selectedMap As ListViewItem = ListView1.SelectedItems(0)
            Dim mapDescriptionFile As String = selectedMap.Tag

            If File.Exists(mapDescriptionFile) Then
                TextBox1.Text = File.ReadAllText(mapDescriptionFile)
            End If
        End If
    End Sub

(The second example assumes that you have set the ListView's MultiSelect property to False since you would only want to display the description for one map at a time.)

[+therealDamien Subscriber¹]

.......

[roosevelt]

  On 30/07/2014 at 03:28, dsbig said:

Im self educated on visual basic programming. so its basically a learning curve.

 

but need help with something.

 

 

using visual studio 2013 with visual basic net

 

working on map loader for a pc game.

 

there is a txt file with credits and info in the same directory as the maps.

 

so far I have a listbox that scans the directory and shows all the map files and then user selects the map and then clicks a start button and it loads the game with the map. 

 

but I also want to a have a txt box for the map selected showing the information for the map.

 

so what I want to do is when a user clicks on a map in the listbox,it will show a preview of the maps txt file in a separate box on the form.

 

Hi,

 

I am trying to help you as much as I can but from the looks of your program you want to show a preview of the map, correct? Are you trying to show a Picture of your map or anything else?

 

Normally, you would use the Drawing class to display images on a container or a datagrid. Quickest way would be to add a .NET label on your application, and when the user selects a map you fire an event to load a .bmp file from a specific location.

 

Private Sub CreateMyLabel()

    ' Create a new label and bitmap. 

    Dim Label1 As New Label()
    Dim Image1 As Image

    Image1 = Image.FromFile("c:\\MyImage.bmp")


    ' Set the size of the label to accommodate the bitmap size.

    Label1.Size = Image1.Size        

    ' Initialize the label control's Image property.

    Label1.Image = Image1

    ' ...Code to add the control to the form... 

End Sub

[Eric Veteran]

Can you make a mock-up of what you want? I'm not sure I understand by your description. It sounds like you want a window with a map and text legend under it the changes based on where you click on the map?

[+therealDamien Subscriber¹]

I have a listbox  that scans a folder for *.map files and shows a list of maps in the listbox.

 

and there is also a txt file that has credit and also information that folder.

 

when clicking a map title in the listbox. a textbox will show the information for that map.

 

 

list of maps

 

 

when someone select a map then it would show the matching .txt file with the information in a box like this. 

 

[+therealDamien Subscriber¹]

thanks this worked for me.