读取Excel任务列表并显示在Outlook日历上

前几天，公司发了一个任务安排，时间不固定，但要求准时到，为了给自己加一个提醒，也为了回顾一下以前的技术，特做了一个Demo。

读取Excel就不多说了，代码很简单，但支持老版本Excel和的版本Excel。

代码如下：

public class ExcelConn
{
private string FilePath;
private string m_filePath = string.Empty;
private OleDbConnection conn;

public ExcelConn(string filePath)
{
this.FilePath = filePath;
string fileType = System.IO.Path.GetExtension(filePath);
if (fileType == ".xls")
{
conn = new OleDbConnection("Provider = Microsoft.Jet.OLEDB.4.0 ; Data Source ='" + this.FilePath + "';Extended Properties=Excel 8.0;");
}
else
{
conn = new OleDbConnection("Provider=Microsoft.ACE.OLEDB.12.0;Data Source ='" + this.FilePath + "';Extended Properties=\"Excel 12.0;HDR=YES;IMEX=1\"");
}
if (conn.State != System.Data.ConnectionState.Open)
{
conn.Open();
}
}

private DataTable GetData(OleDbCommand cmd)
{
try
{
if (cmd.Connection != null)
{
using (DataSet ds = new DataSet())
{
using (OleDbDataAdapter da = new OleDbDataAdapter())
{
da.SelectCommand = cmd;
da.Fill(ds);
return ds.Tables[0];
}
}
}
else
{
using (OleDbTransaction trans = conn.BeginTransaction(IsolationLevel.ReadUncommitted))
{
try
{
cmd.Transaction = trans;
using (DataSet ds = new DataSet())
{
using (OleDbDataAdapter da = new OleDbDataAdapter())
{
da.SelectCommand = cmd;
da.SelectCommand.Connection = conn;
da.Fill(ds);
return ds.Tables[0];
}
}
}
finally
{
trans.Commit();
}
}
}
}
finally
{ }
}

public DataSet GetDataSet(string sql)
{
try
{
OleDbTransaction trans = conn.BeginTransaction(IsolationLevel.ReadUncommitted);
try
{
using (OleDbCommand cmd = conn.CreateCommand())
{
cmd.Transaction = trans;
cmd.CommandType = CommandType.Text;
cmd.CommandText = sql;
using (DataSet ds = new DataSet())
{
using (OleDbDataAdapter da = new OleDbDataAdapter())
{
da.SelectCommand = cmd;
da.SelectCommand.Connection = conn;
da.Fill(ds);
return ds;
}
}
}
}
finally
{
trans.Commit();
}
}
finally
{
}
}

public void ExecuteNonQuery(string sql)
{
OleDbTransaction trans = conn.BeginTransaction(IsolationLevel.ReadUncommitted);
OleDbCommand cmd = new OleDbCommand(sql);
cmd.Connection = conn;
cmd.Transaction = trans;
cmd.ExecuteNonQuery();
trans.Commit();
}

public object ExecuteScalar(OleDbCommand cmd)
{
try
{
using (OleDbTransaction trans = conn.BeginTransaction(IsolationLevel.ReadUncommitted))
{
cmd.Connection = conn;
cmd.Transaction = trans;
object res = cmd.ExecuteScalar();
trans.Commit();
return res;
}
}
finally
{
}
}

public void Close()
{
conn.Close();
}

public DataSet ExcelToDS()
{
OleDbDataAdapter myCommand;
DataTable schemaTable = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new object[] { });
DataSet ds = new DataSet();
try
{
int i = 0;
{
DataRow dr = schemaTable.Rows[i];
string strExcel = "select * from [" + dr["TABLE_NAME"].ToString().Trim() + "]";
myCommand = new OleDbDataAdapter(strExcel, conn);
myCommand.Fill(ds);
}
}
catch
{
}
finally
{
conn.Close();
}
return ds;
}
}

调用示例：DataTable dtExl = new Calendar.ExcelConn(@"d:\桌面\Temp\net开发团队生产突击报名表(1).xlsx").ExcelToDS().Tables[0];

在OutLook上添加日历，其实就是添加一个约会。

新建约会也就是调用OutLook的ApplicationClass。

主要代码如下：

ApplicationClass oApp = new Microsoft.Office.Interop.Outlook.ApplicationClass();

//会议是约会的一种
AppointmentItem oItem = (AppointmentItem)oApp.CreateItem(OlItemType.olAppointmentItem);
oItem.MeetingStatus = OlMeetingStatus.olMeeting;
oItem.Subject = "生产突击";
oItem.Body = "内容";
oItem.Location = "地点";
//开始时间　
oItem.Start = DateTime.Now.AddDays(1);
//结束时间
oItem.End = DateTime.Now.AddDays(1).AddHours(4);
//提醒设置
oItem.ReminderSet = true;
oItem.ReminderMinutesBeforeStart = 5;

//是否全天事件
oItem.AllDayEvent = false;

oItem.BusyStatus = OlBusyStatus.olBusy;

//索引从1开始，而不是从0
//发件人的帐号信息
var acc = oApp.Session.Accounts;
oItem.SendUsingAccount = oApp.Session.Accounts[1];

//添加必选人
Recipient force = oItem.Recipients.Add("wufei@china.com");
force = oItem.Recipients.Add("zaijun@china.com");
force.Type = (int)OlMeetingRecipientType.olRequired;
////添加可选人
//Recipient opt = oItem.Recipients.Add("mailuser3@p.mailserver.com");
//opt.Type = (int)OlMeetingRecipientType.olOptional;
////添加会议发起者
//Recipient meetingSender = oItem.Recipients.Add("mailuser1@mailserver.com");
//meetingSender.Type = (int)OlMeetingRecipientType.olOrganizer;

oItem.Recipients.ResolveAll();
oItem.Send();

既读取了Excel，又能发约会，下面就是Excel中数据的筛选和调用了，相信难不倒各位，就不多说了。

至此，这个简单的Demo算是完成了，希望对大家有用。