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Bind a linkedlist to a datagridview


Bind a linkedlist to a datagridview

By : Adi Irawan
Date : November 21 2020, 11:01 PM
this will help One way to avoid making 21 Data properties is to convert the List to DataTable:
code :
class PayoffNode
{
    public int DealNo;
    public string Category;
    public double[] Data; // = new double[21];
}
Random Rnd = new Random();

List<PayoffNode> PayLL = Enumerable.Range(1, 10).Select(i => new PayoffNode {
    DealNo = i,
    Category = "Account==" + i,
    Data = Enumerable.Range(1, 21).Select(d => (double)Rnd.Next(10, 99)).ToArray()
}).ToList();

// List<PayoffNode> to DataTable
var dt = new DataTable();
dt.Columns.Add("DealNo", typeof(int));
dt.Columns.Add("Category"); // typeof(string) by default
for (int i = 1; i <= 21; i++)
    dt.Columns.Add("Data" + i, typeof(double));

foreach (var P in PayLL)
{
    var dr = dt.Rows.Add(P.DealNo, P.Category);
    for (int i = 0; i < 21; i++)
        dr[i+2] = P.Data[i]; // +2 is the number of fields before the Data fields
}

PayoffTable.DataSource = dt;
dt.DefaultView.RowFilter = " Category = 'Account==4' ";


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Java - "Rotating" Objects in A LinkedList - Is LinkedList.addLast(LinkedList.removeFirst()) Good Or Bad Progra

Java - "Rotating" Objects in A LinkedList - Is LinkedList.addLast(LinkedList.removeFirst()) Good Or Bad Progra


By : Trinesh Kaim
Date : March 29 2020, 07:55 AM
this will help Seems fine to me. If you had a truly circular buffer which was full you could just move the "start/end" index, but I think the linked list approach will work pretty well. In particular it's still O(1).
bind custom object and view in the LinkedList or other container

bind custom object and view in the LinkedList or other container


By : ccxk
Date : March 29 2020, 07:55 AM
This might help you I solved this issue by HashMap using. I use singletone pattern for hashmap creating and using:
code :
    public class OrdersViewMapSingletone {
     Map<Order, View>  arrayList;

    private static OrdersViewMapSingletone instance;

    private OrdersViewMapSingletone()
    {
        arrayList = new  HashMap<Order,View>();
    }

    public static OrdersViewMapSingletone getInstance(){

        return instance;
    }

     public static void initInstance()
      {
         if (instance == null)
         {
                instance = new OrdersViewMapSingletone();
         }
      }

    public Map<Order, View> getOrderViewMap()
    {
        return arrayList;
    }

    @Override
    public String toString()
    {       
    return getOrderViewMap().toString();    
    }
}
 Map<Order, View> orderViewMap = OrdersViewMapSingletone.getInstance().getOrderViewMap();
orderViewMap.put(order,row);
public View getMapedView(Order order)
    {
        return this.orderViewMap.get(order);
    }
Bind any XML & XSD to DataGridView c#

Bind any XML & XSD to DataGridView c#


By : Sayandip Bhattachary
Date : March 29 2020, 07:55 AM
will be helpful for those in need You can read XML using XDocument or XmlDocument class - to get all values. Problem is, that you first have to specify datagridview columns, so first you have to read whole xml to get all elements it contains and then decide which one would you like to show in the table.
How to add rows to datagridview while datagridview is bind

How to add rows to datagridview while datagridview is bind


By : Jeffery Mcneil
Date : March 29 2020, 07:55 AM
hop of those help? I have a datagridview and I filled with data. , Try to use
code :
DataTable dataTable = (DataTable)dataGridView2.DataSource;
DataRow drToAdd = dataTable.NewRow();
drToAdd[3] = a.ToString();
dataTable.Rows.Add(drToAdd);
To check palindrome in LinkedList -comparing linkedList and Reverse LinkedList.Getting incorrect answer?

To check palindrome in LinkedList -comparing linkedList and Reverse LinkedList.Getting incorrect answer?


By : David
Date : March 29 2020, 07:55 AM
Hope that helps Here's an ASCII-art depiction of what your list (singular) looks like at each step. I've omitted the superfluous statements and print statements:
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