【发布时间】:2011-07-19 16:27:10
【问题描述】:
大家好,背景: 我正在使用带有 OpenFileDialog、FileBrowserDialog 的 C# 开发一个 WinForms 应用程序,它将使用命令行可执行文件将多个文件从 excel 转换为 1 个 csv 文件。
错误:我应该添加什么使用指令或程序集引用来防止这些错误?
- “sOut”在当前上下文中不存在
- 'sErr' 在当前上下文中不存在
- 'sourceFileOpenFileDialog.SelectedFiles' 不包含 'SelectedFiles' 的定义,并且找不到接受 system.windows.forms.openfiledialog 类型的第一个参数的扩展方法(您是否缺少使用指令或程序集引用?)
- 'sourceFileOpenFileDialog.SelectedPath' 不包含 'SelectedPath' 的定义,并且找不到接受 system.windows.forms.openfiledialog 类型的第一个参数的扩展方法(您是否缺少使用指令或程序集引用?)
- 'SecurityException' 找不到(您是否缺少 using 指令或程序集引用?)
- 'Process' 找不到(您是否缺少 using 指令或程序集引用?)
- 'fileName' 找不到(您是否缺少 using 指令或程序集引用?)
- “sourceFileOpenFileDialog.FileNames”无法将类型“string[]”隐式转换为“string”
谢谢!
这是 MainForm.CS 文件中的代码:
using System;
using System.ComponentModel;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Threading;
using System.IO;
using System.Diagnostics;
using System.Security;
// Select Source Files Button
private void sourceFiles_Click(object sender, EventArgs e)
{
Stream myStream = null;
OpenFileDialog openFileDialog1 = new OpenFileDialog();
this.sourceFileOpenFileDialog.InitialDirectory = "i:\\CommissisionReconciliation\\Review\\";
this.sourceFileOpenFileDialog.Filter = "Excel Files (*.xls;*.xlsx;)|*.xls;*.xlsx;|All Files (*.*)|*.*";
this.sourceFileOpenFileDialog.FilterIndex = 2;
this.sourceFileOpenFileDialog.RestoreDirectory = true;
this.sourceFileOpenFileDialog.Multiselect = true;
this.sourceFileOpenFileDialog.Title = "Excel File Browser";
DialogResult dr = this.sourceFileOpenFileDialog.ShowDialog();
if (dr == System.Windows.Forms.DialogResult.OK)
{
string consolidatedFolder = targetFolderBrowserDialog.SelectedPath;
// Read the files
foreach (String file in sourceFileOpenFileDialog.FileNames)
{
try
{
// Copy each selected xlsx files into the specified TargetFolder
System.IO.File.Copy(fileName, consolidatedFolder + @"\" + System.IO.Path.GetFileName(fileName));
// Convert each selected XLSX File to CSV Using the command prompt
// [I:\CommissisionReconciliation\App\ConvertExcel\ConvertExcelTo.exe ^ .XLS file location ^ filename.csv]
// example: ConvertExcelTo.exe ^ I:\CommissisionReconciliation\ Review\_Consolidated\ALH\2011-350-00-600070-
// 03-09alh-AMLHS of Florida.xlsx ^ 2011-350-00-600070-03-09alh-AMLHS of Florida.csv
Process convertFilesProcess = new Process();
// command prompt execution
convertFilesProcess.StartInfo.WorkingDirectory = "I:\\CommissisionReconciliation\\App\\ConvertExcel\\";
convertFilesProcess.StartInfo.FileName = "ConvertExcelTo.exe";
convertFilesProcess.StartInfo.Arguments = " ^ " + targetFolderBrowserDialog.SelectedPath + "^" + csvFileName + ".csv";
convertFilesProcess.StartInfo.UseShellExecute = true;
convertFilesProcess.StartInfo.CreateNoWindow = true;
convertFilesProcess.StartInfo.RedirectStandardOutput = true;
convertFilesProcess.StartInfo.RedirectStandardError = true;
convertFilesProcess.Start();
StreamReader sOut = convertFilesProcess.StandardOutput;
StreamReader sErr = convertFilesProcess.StandardError;
}
catch (SecurityException ex)
{
// The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. The user lacks appropriate permissions to read files, discover paths, etc. Please contact your administrator for details.\n\n" +
"Error message: " + ex.Message + "\n\n" +);
}
catch (Exception ex)
{
// Could not load the image - probably related to Windows file system permissions.
MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
+ ". You may not have permission to read the file, or " +
"it may be corrupt.\n\nReported error: " + ex.Message);
}
finally
{
Stream sOut
.Close();
sErr.Close();
}
try
{
// Combine all .csv files into 1 csv file using the command prompt
// [.csv File location: Copy *.csv ^ filename.csv]
// example: [.CSV I:\CommissisionReconciliation\ Review\_Consolidated\ALH\: Copy *.csv
// ^2011-350-00-600070-03-09alh-AMLHS of Florida.csv)
Process consolidateFilesProcess = new Process();
// substring function to take off the extension from sourceFileOpenFileDialog.FileName
// int csvFileName.Length = sourceFileOpenFileDialog.FileName.Length - 3;
consolidateFilesProcess.StartInfo.WorkingDirectory = "I:\\CommissisionReconciliation\\App\\ConvertExcel\\";
consolidateFilesProcess.StartInfo.FileName = "ConvertExcelTo.exe";
consolidateFilesProcess.StartInfo.Arguments = " .CSV " + " ^ " + targetFolderBrowserDialog.SelectedPath + ": Copy *.csv ^" + csvFileName+ ".csv";
consolidateFilesProcess.StartInfo.UseShellExecute = false;
consolidateFilesProcess.StartInfo.CreateNoWindow = true;
consolidateFilesProcess.StartInfo.RedirectStandardOutput = true;
consolidateFilesProcess.StartInfo.RedirectStandardError = true;
consolidateFilesProcess.Start();
StreamReader sOut = consolidateFilesProcess.StandardOutput;
StreamReader sErr = consolidateFilesProcess.StandardError;
}
catch (SecurityException ex)
{
// The user lacks appropriate permissions to read files, discover paths, etc.
MessageBox.Show("Security error. The user lacks appropriate permissions to read files, discover paths, etc. Please contact your administrator for details.\n\n" +
"Error message: " + ex.Message + "\n\n" +);
}
catch (Exception ex)
{
// Could not load the image - probably related to Windows file system permissions.
MessageBox.Show("Cannot display the image: " + file.Substring(file.LastIndexOf('\\'))
+ ". You may not have permission to read the file, or " +
"it may be corrupt.\n\nReported error: " + ex.Message);
}
finally
{
sOut.Close();
sErr.Close();
}
} // ends foreach (String file in openFileDialog1.FileNames)
} // ends if (dr == System.Windows.Forms.DialogResult.OK)
if (sourceFileOpenFileDialog.ShowDialog() == DialogResult.OK)
{
try
{
if ((myStream = sourceFileOpenFileDialog.OpenFile()) != null)
{
using (myStream)
{
textBoxSourceFiles.Text = sourceFileOpenFileDialog.FileNames;
}
}
}
catch (Exception ex)
{
MessageBox.Show("Error: Could not read file from disk. Original error: " + ex.Message);
}
}
if (sourceFileOpenFileDialog.ShowDialog() == DialogResult.OK)
{
Log("Source Files: " + sourceFileOpenFileDialog.SelectedFiles);
}
textBoxSourceFiles.Text = sourceFileOpenFileDialog.SelectedFiles;
} // ends selectFilesButton_Click method
// Source Folder Path Click Button
【问题讨论】:
-
已修复错误:找不到“进程”(您是否缺少 using 指令或程序集引用?) w/ using System.Diagnostics;
-
已修复错误:找不到“SecurityException”(您是否缺少 using 指令或程序集引用?) w/ using System.Security;
-
修复错误:通过更改为 sourceFileOpenFileDialog.FileName 找不到“fileName”(您是否缺少 using 指令或程序集引用?)
-
我们再给你一个小时左右。
-
来吧,汉斯索罗,我不想花几个小时调试哈哈
标签: c# winforms error-handling streamreader openfiledialog