Datagridview and events

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I have a form with a Datagridview, i do not know ha many rows the datagrid have. Most times will be 1 or 2 record.

In the first cell a have a combobox, and the 5 cell is hiden, contains a unique ID.

I want to transmit the unique ID to a another form for every ROW in the datagridview,

BUT should be 2 cases.

The ID should be send separate if the checkbox is checked or unchecked.

Any sugestion.

i try to use arraylist, but..

I do somentig like that

string[] IDProdusContractPrelugit = new string[dataProduseContract.Rows.Count];
           string[] IDProdusContractRetras = new string[dataProduseContract.Rows.Count];
           for(int i=0; i < dataProduseContract.Rows.Count; i++)
           {

               if (Convert.ToBoolean(dataProduseContract.Rows[i].Cells[0].Value) == false)
                   {
                       IDProdusContractPrelugit[i] = dataProduseContract.Rows[i].Cells[5].Value.ToString();
                   }

               if (Convert.ToBoolean(dataProduseContract.Rows[i].Cells[0].Value) == true)
                   {
                       IDProdusContractRetras[i] = dataProduseContract.Rows[i].Cells[5].Value.ToString();
                   }
           }

           foreach (string a in IDProdusContractPrelugit)
           {
               MessageBox.Show(a);
           }

Now i try to pass the ID to a form2, in this exemple my datagrid contains 4 row, so i ned to pass to the second form 4 values, but, 1 value is from array IDProdusContractPrelugit and 3 from array IDProdusContractRetras.

Posted 17-Jul-11 2:59am

aciobanita

Updated 17-Jul-11 3:43am

v2

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Comments

Espen Harlinn 17-Jul-11 10:28am

This is a fairly convoluted way of doing things, databinding lets you "forget" about the internal plumbing of the UI - just read up on it, it will be a fair productivity booster :)

2 solutions

Solution 1

Read through this
How to: Bind Data to the Windows Forms DataGridView Control[^]

Then:
1. Create an entity 'Element' representing the row data, add a bool property for the checkbox
2. Populate an instance of List<element>
3. Assign that instance to the bindingSource1.DataSource

The grid will now apply the changes to your List<element> instance, so you can just work with that - including sending it to the other form.

Best regards
Espen Harlinn

Posted 17-Jul-11 3:39am

Espen Harlinn

Comments

thatraja 17-Jul-11 10:54am

Clean, 5!

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aciobanita · Accepted Answer · 2011-07-17T05:29:00

Resolved:

FORM 1.

private void btnModificaContractul_Click(object sender, EventArgs e)
        {


            string[] IDProdusContractPrelugit = new string[dataProduseContract.Rows.Count];
            string[] IDProdusContractRetras = new string[dataProduseContract.Rows.Count];

            for (int i = 0; i < dataProduseContract.Rows.Count; i++)
            {

                if (Convert.ToBoolean(dataProduseContract.Rows[i].Cells[0].Value) == false)
                {
                    IDProdusContractPrelugit[i] = dataProduseContract.Rows[i].Cells[5].Value.ToString();
                }
                else
                {
                    IDProdusContractRetras[i] = dataProduseContract.Rows[i].Cells[5].Value.ToString();
                }
            }

           

            try
            {
                frmModificaContract ModificareContract = new frmModificaContract(IDProdusContractPrelugit, IDProdusContractRetras);
                ModificareContract.ShowDialog();
            }
            catch { MessageBox.Show("Trebuie să selectaţi un contract din listă pentru a edita.", "Datele furnizate sunt incomplete."); }
           
        }

FORM 2.

string[] IDProdusContractPrelugit;
        string[] IDProdusContractRetras;

        public frmModificaContract(string[] IDProdusContractPrelugit, string[] IDProdusContractRetras)
        {
            InitializeComponent();
            this.IDProdusContractPrelugit = IDProdusContractPrelugit;
            this.IDProdusContractRetras = IDProdusContractRetras;
            AfisareProduseContract();
        }


        void AfisareProduseContract()
        {

            foreach (string ContractPrelungit in IDProdusContractPrelugit)
            {
                if (ContractPrelungit != null)
                {
                    Program.Connection.CommandText = "select * from ContractItems WHERE ContractItemId=@ContractItemId";
                    Program.Connection.AddParameter("@ContractItemId", ContractPrelungit);

                    DataTable Table = new DataTable();
                    Program.Connection.FillDataTable(Table, true);


                    for (int i = 0; i < Table.Rows.Count; i++)
                    {
                        if (String.IsNullOrWhiteSpace(Table.Rows[i]["DeletedId"].ToString()))
                        {
                            bool validare;
                            validare = true;

                            dataProduseContract.Rows.Add(validare, Table.Rows[i]["Name"].ToString(), Table.Rows[i]["Quantity"].ToString() + " " + Table.Rows[i]["QuantityUnit"].ToString(), Table.Rows[i]["Payment"].ToString(), Table.Rows[i]["Description"].ToString(), Table.Rows[i]["ContractItemId"].ToString());
                        }
                        else
                        {
                            bool validarescos;
                            validarescos = false;
                            dataProduseContract.Rows.Add(validarescos, Table.Rows[i]["Name"].ToString(), Table.Rows[i]["Quantity"].ToString() + " " + Table.Rows[i]["QuantityUnit"].ToString(), Table.Rows[i]["Payment"].ToString(), Table.Rows[i]["Description"].ToString(), Table.Rows[i]["ContractItemId"].ToString());
                            dataProduseContract.Enabled = false;
                        }

                    }
                }
            }

            
        }

The problem is allwais i have Null value in array.