求高手指点！！！
using System;using System.Windows.Forms;
using System.IO;
using System.Runtime.Serialization.Formatters.Binary;
using System.Runtime.Serialization;
using BankLibrary;
namespace CreateFile
{
public partial class CreateFileForm : BankUIForm
{
// object for serializing Records in binary format
private BinaryFormatter formatter = new BinaryFormatter();
private FileStream output; // stream for writing to a file
// parameterless constructor
public CreateFileForm()
{
InitializeComponent();
} // end constructor
// handler for saveButton_Click
private void saveButton_Click( object sender, EventArgs e )
{
// create and show dialog box enabling user to save file
DialogResult result;
string fileName; // name of file to save data
using ( SaveFileDialog fileChooser = new SaveFileDialog() )
{
fileChooser.CheckFileExists = false; // let user create file
// retrieve the result of the dialog box
result = fileChooser.ShowDialog();
fileName = fileChooser.FileName; // get specified file name
} // end using
// ensure that user clicked "OK"
if ( result == DialogResult.OK )
{
// show error if user specified invalid file
if ( fileName == string.Empty )
MessageBox.Show( "Invalid File Name", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
else
{
// save file via FileStream if user specified valid file
try
{
// open file with write access
output = new FileStream( fileName,
FileMode.OpenOrCreate, FileAccess.Write );
// disable Save button and enable Enter button
saveButton.Enabled = false;
enterButton.Enabled = true;
} // end try
// handle exception if there is a problem opening the file
catch ( IOException )
{
// notify user if file could not be opened
MessageBox.Show( "Error opening file", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
} // end catch
} // end else
} // end if
} // end method saveButton_Click
// handler for enterButton Click
private void enterButton_Click( object sender, EventArgs e )
{
// store TextBox values string array
string[] values = GetTextBoxValues();
// Record containing TextBox values to serialize
RecordSerializable record = new RecordSerializable();
// determine whether TextBox account field is empty
if ( values[ ( int ) TextBoxIndices.ACCOUNT ] != string.Empty )
{
// store TextBox values in Record and serialize Record
try
{
// get account number value from TextBox
int accountNumber = Int32.Parse(
values[ ( int ) TextBoxIndices.ACCOUNT ] );
// determine whether accountNumber is valid
if ( accountNumber > 0 )
{
// store TextBox fields in Record
record.Account = accountNumber;
record.FirstName = values[ ( int )
TextBoxIndices.FIRST ];
record.LastName = values[ ( int )
TextBoxIndices.LAST ];
record.Balance = Decimal.Parse( values[
( int ) TextBoxIndices.BALANCE ] );
// write Record to FileStream ( serialize object )
formatter.Serialize( output, record );
} // end if
else
{
// notify user if invalid account number
MessageBox.Show( "Invalid Account Number", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
} // end else
} // end try
// notify user if error occurs in serialization
catch ( SerializationException )
{
MessageBox.Show( "Error Writing to File", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
} // end catch
// notify user if error occurs regarding parameter format
catch ( FormatException )
{
MessageBox.Show( "Invalid Format", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
} // end catch
} // end if
ClearTextBoxes(); // clear TextBox values
} // end method enterButton_Click
// handler for exitButton Click
private void exitButton_Click( object sender, EventArgs e )
{
// determine whether file exists
if ( output != null )
{
// close file
try
{
output.Close(); // close FileStream
} // end try
// notify user of error closing file
catch ( IOException )
{
MessageBox.Show( "Cannot close file", "Error",
MessageBoxButtons.OK, MessageBoxIcon.Error );
} // end catch
} // end if
Application.Exit(); --------------------编程问答-------------------- what's your problem? --------------------编程问答-------------------- 但是出现的效果是这样的。。。
{
错误 1 找不到类型或命名空间名称“BankLibrary”(是否缺少 using 指令或程序集引用?) G:\作业\c#\课程答案\ch19\Fig19_14\CreateFile\CreateFile\CreateFileForm.cs 8 7 CreateFile
错误 2 找不到类型或命名空间名称“BankUIForm”(是否缺少 using 指令或程序集引用?) G:\作业\c#\课程答案\ch19\Fig19_14\CreateFile\CreateFile\CreateFileForm.cs 12 42 CreateFile
警告 3 Could not resolve this reference. Could not locate the assembly "BankLibrary". Check to make sure the assembly exists on disk. If this reference is required by your code, you may get compilation errors. CreateFile
警告 4 未能找到引用的组件“BankLibrary”。
--------------------编程问答-------------------- 是不是要调用什么类啊？？？？ --------------------编程问答-------------------- 这是分享代码的意思嘛 --------------------编程问答-------------------- 1：你编译的顺序错了 有时候虽然智能提示有但是编译顺序错了会出现这种情况
2：你直接复制黏贴了别人代码吧？人家的类库你没弄来，或者弄来了引用了你没有在一开始using他的命名空间 --------------------编程问答-------------------- Could not locate the assembly "BankLibrary". Check to make sure the assembly exists on disk，这句话都告诉你了，这些动态类都没找到。你找到这些类，重新引用一下。 --------------------编程问答-------------------- 恩恩 谢谢 试过了很好！！！！
补充：.NET技术 , C#
