Assume you have a base class and another class derived from it. You have events defined in base class so you wish to use them in the derived class.

    class a
    {
        publicdelegatevoid Amanindelegate();
        publicevent Amanindelegate Amanin;
    }

    class b:a
    {
        publicvoid hey0()
        {
            Amanin();
        }
    }
    class Program
    {
        staticvoid Main(string[] args)
        {
            b b1=new b();
            b1.Amanin+=new a.Amanindelegate(b1_Amanin);
            b1.hey0();
        }
        staticvoid b1_Amanin()
        {
            Console.WriteLine("aboovv");
        }
    }

Here you have the mentioned error in hey0 method line Amanin();
The best practice is as follows.

          
            class a
{ publicdelegatevoid Amanindelegate(); publicvirtualevent Amanindelegate
Amanin; } class b:a
{ publicoverrideevent a.Amanindelegate
Amanin; publicvoid hey0()
{ Amanin(); } } class Program
{ staticvoid Main(string[]
args) { b b1=new b();
b1.Amanin+=new a.Amanindelegate(b1_Amanin);
b1.hey0(); } staticvoid b1_Amanin()
{ Console.WriteLine("aboovv");
} } 
        

If you are having troubles with installing/registering ReportViewer dll's either using gacutil.exe or setup file, you can download the Microsoft Report Viewer Redistributable 2008 package from the following link.

http://www.microsoft.com/downloads/details.aspx?FamilyID=CC96C246-61E5-4D9E-BB5F-416D75A1B9EF&displaylang=en

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Dtp nin sitesi hacklendi.
dün akşam saat 22:30 civarında...

string strConnectionString =@"Data
Source=.\SQLEXPRESS;Initial Catalog=FooDB;Integrated Security=True"; using (SqlConnection
conSQL =new SqlConnection(strConnectionString))
{ using (SqlCommand
cmdSQL =new SqlCommand("select
* from Foo", conSQL)) { cmdSQL.CommandType = CommandType.Text; try {
conSQL.Open(); conSQL.StatisticsEnabled =true;
conSQL.ResetStatistics(); SqlDataReader drdActiveConfiguration = cmdSQL.ExecuteReader();
IDictionary idcStat= conSQL.RetrieveStatistics(); foreach (DictionaryEntry
dceItem in idcStat)
{ Console.WriteLine("Key:
{0}, Value: {1}", dceItem.Key.ToString(), dceItem.Value.ToString()); } DataSet
dsActiveConfiguration =new DataSet();
dsActiveConfiguration.Load(drdActiveConfiguration, LoadOption.OverwriteChanges, newstring[]
{ "Foo1" });
dsActiveConfiguration.Clear(); conSQL.Close(); } catch (Exception
excp) { } } }