Hi, Can someone check to see if it's me or SerializationException not being correctly caught in this code?
Attached is the datafile needed and lib.
I realise that sending a dll poses security risks and accept that some
may not wish to try the code.
Compiled it using gmcs, mono-1.2.3-1, Fedora rawhide.
using System;
using System.Drawing;
using System.Collections;
using System.ComponentModel;
using System.Windows.Forms;
using System.Data;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;
using BankLibrary;
public class ReadSequentialAccessFileForm : BankUIForm
{
private System.Windows.Forms.Button openbutton;
private System.Windows.Forms.Button nextbutton;
private System.ComponentModel.Container components = null;
private FileStream input;
private BinaryFormatter reader = new BinaryFormatter();
[STAThread]
static void Main()
{
Application.Run(new ReadSequentialAccessFileForm());
}
public ReadSequentialAccessFileForm()
{
InitializeComponent();
}
protected override void Dispose( bool disposing )
{
if( disposing )
{
if (components != null)
{
components.Dispose();
}
}
base.Dispose( disposing );
}
#region Windows Form Designer generated code
private void InitializeComponent()
{
this.openbutton = new System.Windows.Forms.Button();
this.nextbutton = new System.Windows.Forms.Button();
this.SuspendLayout();
this.accounttextbox.TabIndex = 1;
this.firstnametextbox.TabIndex = 2;
this.lastnametextbox.TabIndex = 3;
this.balancetextbox.TabIndex = 4;
this.openbutton.Font = new System.Drawing.Font("Microsoft Sans
Serif", 10F);
this.openbutton.Location = new System.Drawing.Point(32, 232);
this.openbutton.Name = "openButton";
this.openbutton.Size = new System.Drawing.Size(144, 32);
this.openbutton.TabIndex = 0;
this.openbutton.Text = "Open File";
this.openbutton.Click += new
System.EventHandler(this.openbutton_Click);
this.nextbutton.Enabled = false;
this.nextbutton.Font = new System.Drawing.Font("Microsoft Sans
Serif", 10F);
this.nextbutton.Location = new System.Drawing.Point(216, 232);
this.nextbutton.Name = "nextButton";
this.nextbutton.Size = new System.Drawing.Size(144, 32);
this.nextbutton.TabIndex = 5;
this.nextbutton.Text = "Next Record";
this.nextbutton.Click += new
System.EventHandler(this.nextbutton_Click);
this.AutoScaleBaseSize = new System.Drawing.Size(6, 15);
this.ClientSize = new System.Drawing.Size(400, 279);
this.Controls.AddRange(new System.Windows.Forms.Control[] {
this.balancetextbox,
this.lastnametextbox,
this.firstnametextbox,
this.accounttextbox,
this.balancelabel,
this.lastnamelabel,
this.firstnamelabel,
this.accountlabel,
this.nextbutton,
this.openbutton});
this.Name = "ReadSequentialAccessFileForm";
this.Text = "Reading a Sequential File";
this.ResumeLayout(false);
}
#endregion
private void openbutton_Click(object s, System.EventArgs e)
{
OpenFileDialog filechooser = new OpenFileDialog();
DialogResult result = filechooser.ShowDialog();
string filename;
if (result == DialogResult.Cancel)
return;
filename = filechooser.FileName;
cleartextboxes();
if (filename == "" || filename == null)
MessageBox.Show("Invalid filename", "Error", MessageBoxButtons.OK,
MessageBoxIcon.Error);
else
{
input = new FileStream(filename, FileMode.Open, FileAccess.Read);
nextbutton.Enabled = true;
}
}
private void nextbutton_Click(object s, System.EventArgs e)
{
try
{
Record record = (Record) reader.Deserialize(input);
string [] values = new string[] {
record.account.ToString(),
record.firstname.ToString(),
record.lastname.ToString(),
record.balance.ToString() };
settextboxvalues(values);
}
catch (SerializationException)
{
input.Close();
openbutton.Enabled = true;
nextbutton.Enabled = false;
cleartextboxes();
MessageBox.Show("No more records in file", "",
MessageBoxButtons.OK,
MessageBoxIcon.Information);
}
}
}
--
BankUI.dll
Description: application/ms-dos-executable
streams-test
Description: application/font-ttf
signature.asc
Description: This is a digitally signed message part
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