In this post we will add objects of different types into ArrayList. we will iterate this arraylist using foreachlist.

ArrayList will hold the Objects.

e.g. UserInfo object and ProductInfo object.
 

 

public class UserInfo

{

string _firstName; public string FirstName

{

get{return _firstName;}
set{_firstName = value;}

}

string _lastName;

public string LastName

{

get{return _lastName;}
set{_lastName = value;}

}

}

public class ProductInfo

{

string _productName;

public string ProductName

{

get{return _productName;}
set{_productName = value;}

}

}

Iterate using forwach loop

protected void Button1_Click(object sender, EventArgs e)

{

ArrayList arrLst = new ArrayList();

// Add UserInfo object into array list

UserInfo u1 = new UserInfo();

u1.FirstName = "Satalaj";
u1.LastName = "More";

arrLst.Add(u1);

UserInfo u2 = new UserInfo();

u2.FirstName = "Mike";
u2.LastName = "Marco";

arrLst.Add(u2);

//Add ProductInfo object into array list

ProductInfo p1 = new ProductInfo();

p1.ProductName = "Samsung";

arrLst.Add(p1);

ProductInfo p2 = new ProductInfo();
p2.ProductName = "Nokia";

arrLst.Add(p2);

foreach(object o in arrLst)

{

try

{

// lets iterate objects in arraylist and get their type / member info

// I have applied try catch block here bcoz you can see

// arrays are not type safe

System.Type type = o.GetType();string str = type.Name ;

 

Response.Write(str);

Response.Write("<Br />");

}

catch(Exception ex)

{

Response.Write(ex.Message);

}

}

}