CODEWITHSUNDEEP
c#datagridviewdatatable
Pbmke
Pbmke

Reputation: 55

Display DataTable in a simple GUI c#

I have a program coded in c# that receives UDP packets from different sources with multiple IP address.

I have created a datatable that store all those IP addresses and informations linked to the sources, and I try to display this table in the program when I run it.

Because the program is constantly listening to UDP packets, the viewing of the table should be updated in real time.

I have searched for Datagridview, but I didn't success to use it.

I would like to show on screen in a very simple way something like this : Data Viewing

static void Main(string[] args)
        {
            DataTable CommunicationTable = new DataTable();
            initDataTableCommunication(CommunicationTable);

            senderIdentifier SmartphoneTest = new senderIdentifier();
            SmartphoneTest.addressIP = "192.120.120.0";
            SmartphoneTest.message = "Started";
            SmartphoneTest.port = 11000;

            newEntryDateTableCom(SmartphoneTest, CommunicationTable);

            senderIdentifier SmartphoneTest2 = new senderIdentifier();
            SmartphoneTest2.addressIP = "192.120.45.9";
            SmartphoneTest2.message = "Done";
            SmartphoneTest2.port = 11000;

            newEntryDateTableCom(SmartphoneTest2, CommunicationTable);

Here I fulfilled "manually" the DataTable, but the new entries will be created by receiving the UDP Packets

For the moment, I can only visualize the DataTable with the Debug, using the "scope" on the watch of the DataTable (Visual Studio)

Sorry for my poor English and thanks in advance

Upvotes: 1

Views: 3409

Answers (1)

Dmitry Egorov
Dmitry Egorov

Reputation: 9650

You've got to create a new Windows Forms project and drop a DataGridView control on it. Define your CommunicationTable as a field of your newly created form and put your CommunicationTable initialization somewhere in the initialization code (the form's constructor is a good candidate). This initialization should also set the DataSource property of your DataGridview to CommunicationTable.

Then run your UDP listening routine in a separate thread and make it update the CommunicationTable. But don't forget to use Form.Invoke() to update data in the GUI thread.

Here is a simplified example:

DataTable CommunicationTable = new DataTable();
Thread listeningThread;
public Form1()
{
    InitializeComponent();
    CommunicationTable.Columns.Add("addressIP", typeof(string));
    CommunicationTable.Columns.Add("port", typeof(int));
    CommunicationTable.Rows.Add("127.0.0.1", 1100);

    // Notice this assignment:
    dataGridView1.DataSource = CommunicationTable;

    listeningThread = new Thread(() => {
        // UDP listener emulator.
        // Replace with actual code but don't forget the Invoke()
        for (int i = 0; i < 10; i++)
        {
            Invoke((MethodInvoker)delegate {
                CommunicationTable.Rows.Add("127.0.0.1", 1024 + i); });
            Thread.Sleep(300);
        }
    });
    listeningThread.Start();
}

Upvotes: 0

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