string path = Server.MapPath(" PDFs");
bool tfOpenTemp= IsFileInUse(path + " /Doc1.pdf ");
if (!tfOpenTemp)
{
}
else
{
Alert("打印模板已调用，请关闭后进行此操作！");
}
#region 提示信息
//提示信息 using System.Web.UI;
public void Alert(string str_Message)
{
ClientScriptManager scriptManager = ((Page)System.Web.HttpContext.Current.Handler).ClientScript;
scriptManager.RegisterStartupScript(typeof(string), "", "alert('" + str_Message + "');", true);
}
public void Alert(string str_Message, string redirect)
{
ClientScriptManager scriptManager = ((Page)System.Web.HttpContext.Current.Handler).ClientScript;
scriptManager.RegisterStartupScript(typeof(string), "", "alert('" + str_Message + "');self.location='" + redirect + "'", true);
}
#endregion
#region 判断文件是否已使用
public static bool IsFileInUse(string fileName)
{
bool inUse = true;
if (File.Exists(fileName))
{
FileStream fs = null;
try
{
fs = new FileStream(fileName, FileMode.Open, FileAccess.Read, FileShare.None);
inUse = false;
}
catch (Exception e)
{
Console.WriteLine(e.Message.ToString());
}
finally
{
if (fs != null)
{
fs.Close();
}
}
return inUse; //true表示正在使用,false没有使用
}
else
{
return false; //文件不存在则一定没有被使用
}
}
#endregion
