/// <summary>
/// 将当前DataTable转换为特殊字符分隔的字符串
/// </summary>
/// <param name="table"></param>
/// <param name="aes"></param>
/// <param name="encrypt_columns"></param>
/// <returns></returns>
public static string toContentString(DataTable table, AESCryptoBase aes, ArrayList encrypt_columns)
{
string res = "";
for (int i = 0; i < table.Columns.Count; i++)
{
res += table.Columns[i].ColumnName + Convert.ToChar(31);
}
res = res.TrimEnd(Convert.ToChar(31)) + Convert.ToChar(30);
for (int i = 0; i < table.Rows.Count; i++)
{
for (int j = 0; j < table.Columns.Count; j++)
{
if (arrayListContains(encrypt_columns, j))//加密列,做加密处理
{
res += aes.encrypt128(table.Rows[i][j].ToString()) + Convert.ToChar(31);
}
else//非加密列,常规处理
{
res += table.Rows[i][j].ToString() + Convert.ToChar(31);
}
}
res = res.TrimEnd(Convert.ToChar(31)) + Convert.ToChar(30);
}
res = res.TrimEnd(Convert.ToChar(30));
return(res);
}
/// <summary>
/// 读取加密后的权限信息
/// </summary>
/// <param name="content"></param>
public void setPrivilegeContent(string content)
{
if (_privilege_content == content)
{
return;
}
_privilege_content = content;
string[] parts = new AESCryptoBase().decrypt256(_privilege_content).Split(Convert.ToChar(29));
try
{
account_name = parts[0];
for (int i = 1; i < parts.Length; i++)
{
string[] subs = parts[i].Split(Convert.ToChar(30));
try
{
var group = groupWithName(subs[0]);
if (group != null)
{
group.setPrivilegeContent(subs[1]);
}
}
catch { }
}
}
catch { }
}
public static DataTable fromContentString(string content_string, AESCryptoBase aes, ArrayList encrypt_columns)
{
try
{
if (content_string.Trim() == "")
{
return(new DataTable());
}
string[] rows = content_string.Split(Convert.ToChar(30));
if (rows[0].Trim() == "")
{
return(new DataTable());
}
string[] headers = rows[0].Split(Convert.ToChar(31));
DataTable res = new DataTable();
for (int i = 0; i < headers.Length; i++)
{
res.Columns.Add(headers[i]);
}
for (int i = 1; i < rows.Length; i++)
{
try
{
string[] rowcontent = rows[i].Split(Convert.ToChar(31));
DataRow dr = res.NewRow();
for (int j = 0; j < rowcontent.Length; j++)
{
try
{
if (arrayListContains(encrypt_columns, j))
{
dr[j] = aes.decrypt128(rowcontent[j]);
}
else
{
dr[j] = rowcontent[j];
}
}
catch { }
}
res.Rows.Add(dr);
}
catch { }
}
return(res);
}
catch { return(new DataTable()); }
}
/// <summary>
/// 将当前DataTable转换为特殊字符分隔的字符串
/// </summary>
/// <param name="data"></param>
/// <param name="aes"></param>
/// <param name="encrypt_columns"></param>
/// <returns></returns>
public static string toContentString(this DataTable data, AESCryptoBase aes, ArrayList encrypt_columns)
{
return(DataTableUtil.toContentString(data, aes, encrypt_columns));
}