в 15:30, 26 мая 2010

2010-05-26T15:30:47Z

Admin: 1 версия

2010-05-26T11:51:48Z

1 версия

Новая страница

==Read/write binary file (C#)==



<source lang="csharp">
<%@ Page Language="C#" %>
<%@ import Namespace="System.IO" %>
<script runat="server">
BinaryWriter objBinaryWriter;
BinaryReader objBinaryReader;

private void WriteButton_Click(object Sender, EventArgs e)
{
try
{
FileStream objFileStream;

objFileStream = new FileStream("myFileCS.bin", FileMode.Create);
objBinaryWriter = new BinaryWriter(objFileStream);

string Name = NameTextBox.Text;
int Age = Int32.Parse(AgeTextBox.Text);
char Sex = Char.Parse(SexTextBox.Text);

objBinaryWriter.Write(Name);
objBinaryWriter.Write(Age);
objBinaryWriter.Write(Sex);
}
catch (FileNotFoundException FileEx)
{
MessageLabel.Text = FileEx.Message;
return;
}
catch (Exception Ex)
{
MessageLabel.Text = Ex.Message;
return;
}
WriteBinaryPanel.Visible = false;
ReadBinaryPanel.Visible = true;
}

private void ReadButton_Click(object Sender, EventArgs e)
{
FileStream objFileStream;

try
{
objFileStream = new FileStream("myFileCS.bin", FileMode.Open);

objBinaryReader = new BinaryReader(objFileStream);

NameLabel.Text = "Your Name: " + objBinaryReader.ReadString();
AgeLabel.Text = "Your Age: " + objBinaryReader.ReadInt32();
SexLabel.Text = "Your Sex: " + objBinaryReader.ReadChar();
}
catch (FileNotFoundException FileEx)
{
MessageLabel.Text = FileEx.Message;
return;
}
catch (Exception Ex)
{
MessageLabel.Text = Ex.Message;
return;
}
}
</script>
<html>
<head>
</head>
<body>
<form runat="server">

<asp:Panel id="WriteBinaryPanel" Runat="Server">

Please enter your Name:
<asp:TextBox id="NameTextBox" runat="server"></asp:TextBox>


Please enter your Age:
<asp:TextBox id="AgeTextBox" runat="server"></asp:TextBox>


Please enter your Sex:
<asp:TextBox id="SexTextBox"
runat="Server"
MaxLength="1"
Columns="1"></asp:TextBox>
(M/F)


<asp:Button id="WriteButton"
onclick="WriteButton_Click"
runat="server"
Text="Write It!"></asp:Button>

</asp:Panel>
<asp:Panel id="ReadBinaryPanel" Runat="Server" >

<asp:Button id="ReadButton"
onclick="ReadButton_Click"
runat="server"
Text="Read It!"></asp:Button>


<asp:Label id="NameLabel" Runat="Server"></asp:Label>


<asp:Label id="AgeLabel" Runat="Server"></asp:Label>


<asp:Label id="SexLabel" Runat="Server"></asp:Label>

</asp:Panel>


<asp:Label id="MessageLabel"
runat="server"
EnableViewState="False"></asp:Label>

</form>
</body>
</html>
</source>

==Read/write binary file (VB)==



<source lang="csharp">
<%@ Page Language="VB" %>
<%@ import Namespace="System.IO" %>
<script runat="server">
Dim objBinaryWriter As BinaryWriter
Dim objBinaryReader As BinaryReader

Sub WriteButton_Click(sender As Object, e As EventArgs)
Dim objFileStream As FileStream
Try
objFileStream = New FileStream("myFileVB.bin", FileMode.Create)
objBinaryWriter = New BinaryWriter(objFileStream)

Dim Name As String = NameTextBox.Text
Dim Age As Integer = Int32.Parse(AgeTextBox.Text)
Dim Sex As Char = Char.Parse(SexTextBox.Text)

objBinaryWriter.Write(Name)
objBinaryWriter.Write(Age)
objBinaryWriter.Write(Sex)

Catch FileEx As FileNotFoundException
MessageLabel.Text = FileEx.Message()
Exit Sub
Catch Ex As Exception
MessageLabel.Text = Ex.Message()
Exit Sub
End Try

WriteBinaryPanel.Visible = False
ReadBinaryPanel.Visible = True

End Sub

Sub ReadButton_Click(Sender As Object, e As EventArgs)
Dim objFileStream As FileStream
Try
objFileStream = New FileStream("C:\myFileVB.bin", FileMode.Open)
objBinaryReader = New BinaryReader(objFileStream)
NameLabel.Text = "Your Name: " & objBinaryReader.ReadString()
AgeLabel.Text = "Your Age: " & objBinaryReader.ReadInt32()
SexLabel.Text = "Your Sex: " & objBinaryReader.ReadChar()
Catch FileEx As FileNotFoundException
MessageLabel.Text = FileEx.Message()
Exit Sub
Catch Ex As Exception
MessageLabel.Text = Ex.Message()
Exit Sub
End Try
End Sub
</script>
<html>
<head>
</head>
<body>
<form runat="server">

<asp:Panel id="WriteBinaryPanel" Runat="Server">

Please enter your Name:
<asp:TextBox id="NameTextBox" runat="server"></asp:TextBox>


Please enter your Age:
<asp:TextBox id="AgeTextBox" runat="server"></asp:TextBox>


Please enter your Sex:
<asp:TextBox id="SexTextBox"
runat="Server"
MaxLength="1"
Columns="1"></asp:TextBox>
(M/F)


<asp:Button id="WriteButton"
onclick="WriteButton_Click"
runat="server"
Text="Write It!"></asp:Button>

</asp:Panel>
<asp:Panel id="ReadBinaryPanel" Runat="Server">

<asp:Button id="ReadButton"
onclick="ReadButton_Click"
runat="server"
Text="Read It!"></asp:Button>


<asp:Label id="NameLabel" Runat="Server"></asp:Label>


<asp:Label id="AgeLabel" Runat="Server"></asp:Label>


<asp:Label id="SexLabel" Runat="Server"></asp:Label>

</asp:Panel>


<asp:Label id="MessageLabel"
runat="server"
EnableViewState="False"></asp:Label>

</form>
</body>
</html>
</source>

← Предыдущая	Версия 15:30, 26 мая 2010
(нет различий)

ASP.Net/File Directory/Binary File - История изменений

в 15:30, 26 мая 2010

Admin: 1 версия