how can i make list of id by click on rows in gridview devexpress

To achieve the desired functionality using DevExpress GridView, you can follow these steps:

1. Handle the Row/Cell Click Event to Capture the ID:

   • Capture the row or cell click event to get the ID of the clicked row.
   • Add this ID to a list.

2. Handle the Save Button Click Event:

   • Iterate through the list of IDs and retrieve the corresponding items from the database.

Here’s an example of how you can implement this in a Windows Forms application:

Step 1: Initialize the List

Create a list to store the IDs globally within your form.

public partial class Form1 : Form
{
    private List selectedIds = new List();

    public Form1()
    {
        InitializeComponent();
        // Initialize GridView and other components here
    }
}

Step 2: Handle the Row/Cell Click Event

Attach an event handler to the GridView’s click event to capture the ID and add it to the list.

private void gridView1_RowClick(object sender, DevExpress.XtraGrid.Views.Grid.RowClickEventArgs e)
{
    int id = Convert.ToInt32(gridView1.GetRowCellValue(e.RowHandle, "ID")); // Assuming the column name is "ID"
    if (!selectedIds.Contains(id))
    {
        selectedIds.Add(id);
    }
}

Step 3: Handle the Save Button Click Event

When the save button is clicked, iterate through the list of IDs and retrieve the items from the database.

private void btnSave_Click(object sender, EventArgs e)
{
    List items = new List();
    foreach (int id in selectedIds)
    {
        // Replace this with your actual data retrieval logic
        var item = GetItemFromDatabase(id);
        items.Add(item);
    }

    // Do something with the items list
}

private YourItemType GetItemFromDatabase(int id)
{
    // Replace this with your actual data retrieval logic
    // Example:
    // return dbContext.YourItems.SingleOrDefault(item => item.ID == id);
}

Replace YourItemType and the GetItemFromDatabase method with your actual data model and data retrieval logic. This example assumes that your data model has an ID column and that you have a method to retrieve items from the database by their ID.