设置Excel文档的ADRMS权限的工具类

设置Excel文档权限的工具类

引用Microsoft Office 12.0 Object Library

引用Microsoft Excel 12.0 Object Library

/// <summary>
/// 设置Excel文档权限的工具类
/// </summary>
public class RmsExcelHelper : IDisposable
{
/// <summary>
/// Excel应用程序对象
/// </summary>
private Microsoft.Office.Interop.Excel.ApplicationClass app;

/// <summary>
/// Excel文档路径
/// </summary>
private string filePath;
public string FilePath
{
get { return this.filePath; }
set { this.filePath = value; }
}

/// <summary>
/// 权限集合
/// </summary>
private List<RmsExcelPermission> rmsPerms = new List<RmsExcelPermission>();
public List<RmsExcelPermission> RmsPerms
{
get { return this.rmsPerms; }
}

/// <summary>
/// 空值
/// </summary>
private object MISSINGVALUE = System.Reflection.Missing.Value;

/// <summary>
/// 错误消息
/// </summary>
public string ErrMessage = string.Empty;

/// <summary>
/// 是否xlsx文档
/// </summary>
private bool is2007()
{
bool result = false;

result = System.IO.Path.GetExtension(this.filePath).ToLower() == "xlsx";

return result;
}

/// <summary>
/// Rms授权后的文件名
/// </summary>
private string GetRmsFileName()
{
string filename = string.Empty;

filename = System.IO.Path.Combine(System.IO.Path.GetDirectoryName(this.filePath), System.IO.Path.GetFileNameWithoutExtension(this.filePath) + "_RMS" + System.IO.Path.GetExtension(this.filePath));

return filename;
}

/// <summary>
/// 保存
/// </summary>
public bool Save()
{
//清除错误消息
this.ErrMessage = string.Empty;

bool result = false;

string filename_src = this.filePath;
string filename_dst = this.GetRmsFileName();

try
{
if (this.app == null)
{
this.app = new Microsoft.Office.Interop.Excel.ApplicationClass();
}

var doc = this.app.Workbooks.Open(filename_src, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE,
MISSINGVALUE, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE,
MISSINGVALUE, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE,
MISSINGVALUE, MISSINGVALUE, MISSINGVALUE);

try
{
doc.Activate();

doc.Permission.Enabled = true;

foreach (var permission in this.rmsPerms)
{
doc.Permission.Add(permission.UserId, permission.Perms, MISSINGVALUE);
}

doc.SaveAs(filename_dst, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE,
MISSINGVALUE, MISSINGVALUE, Microsoft.Office.Interop.Excel.XlSaveAsAccessMode.xlNoChange,
MISSINGVALUE, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE, MISSINGVALUE);

result = true;

}
finally
{
doc.Close(MISSINGVALUE, MISSINGVALUE, MISSINGVALUE);
}
}
catch (Exception ex)
{
this.ErrMessage = ex.Message;
}

return result;

}

/// <summary>
/// 退出Excel应用程序
/// </summary>
public void Dispose()
{
if (this.app != null)
{
this.app.Quit();
this.app = null;
}
}
}

public class RmsExcelPermission
{
public string UserId;
public Microsoft.Office.Core.MsoPermission Perms;
}

使用示例

using (RmsExcelHelper helper = new RmsExcelHelper())
{
helper.FilePath = filePath;
helper.RmsPerms.Add(new RmsExcelPermission() { UserId="Everyone", Perms= Microsoft.Office.Core.MsoPermission.msoPermissionRead });

if (helper.Save())
{
MessageBox.Show("ok");
}
else
{
MessageBox.Show(helper.ErrMessage);
}
}