Problem : Invalid Printer Exception – when no printers are installed
Hi Guys,
I’ve got a vb.net program which takes a load of fields from my form and does a g.DrawString style thing onto the page.
If the system has a printer installed then this works great, if there is no printer installed it throws up an error :
——
System.Drawing.Printing.In
——
Is there a way to test to see if any printers are installed before doing the ‘PrintPreviewDialog1.ShowD
or perhaps a way of catching the error into producing a nice message box, telling the user that they don’t have a printer therefore they cannot print DOH! and then return to the program when they click ok.
Any help would be great as I have to present this piece of software at a meeting tomorrow(wed) afternoon!
Agh!!!!!!!
Many Thanks
Solution : Invalid Printer Exception – when no printers are installed
do u have a
try
catch
around that section of code.
to check for printers, u could use this code:
create a new project and copy paste this code for a sample
Public Class Form1
Inherits System.Windows.Forms.Form
#Region ” Windows Form Designer generated code ”
Public Sub New()
MyBase.New()
‘This call is required by the Windows Form Designer.
InitializeComponent()
‘Add any initialization after the InitializeComponent() call
End Sub
‘Form overrides dispose to clean up the component list.
Protected Overloads Overrides Sub Dispose(ByVal disposing As Boolean)
If disposing Then
If Not (components Is Nothing) Then
components.Dispose()
End If
End If
MyBase.Dispose(disposing)
End Sub
‘Required by the Windows Form Designer
Private components As System.ComponentModel.ICon
‘NOTE: The following procedure is required by the Windows Form Designer
‘It can be modified using the Windows Form Designer.
‘Do not modify it using the code editor.
Friend WithEvents Button1 As System.Windows.Forms.Butto
Friend WithEvents ListBox1 As System.Windows.Forms.ListB
<system.diagnostics.debugg
Me.Button1 = New System.Windows.Forms.Butto
Me.ListBox1 = New System.Windows.Forms.ListB
Me.SuspendLayout()
‘
‘Button1
‘
Me.Button1.Location = New System.Drawing.Point(96, 88)
Me.Button1.Name = “Button1”
Me.Button1.Size = New System.Drawing.Size(56, 32)
Me.Button1.TabIndex = 0
Me.Button1.Text = “Button1”
‘
‘ListBox1
‘
Me.ListBox1.Location = New System.Drawing.Point(88, 152)
Me.ListBox1.Name = “ListBox1”
Me.ListBox1.Size = New System.Drawing.Size(120, 95)
Me.ListBox1.TabIndex = 1
‘
‘Form1
‘
Me.AutoScaleBaseSize = New System.Drawing.Size(5, 13)
Me.ClientSize = New System.Drawing.Size(292, 266)
Me.Controls.Add(Me.ListBox
Me.Controls.Add(Me.Button1
Me.Name = “Form1”
Me.Text = “Form1”
Me.ResumeLayout(False)
End Sub
#End Region
Private Sub Button1_Click(ByVal sender As System.Object, ByVal e As System.EventArgs) Handles Button1.Click
Dim a As New Printing.PageSettings
Dim b As System.Drawing.Printing.Pr
Dim X As Integer
For X = X To b.Count – 1
listbox1.Items.Add(b.Item(
Next
End Sub
End Class</system.diagnostics.debugg