如何在datagridview组合框列中绑定数据

How to bind data in datagridview combobox column

这是联系人,但我们可以有多个联系人,所以我想在组合框中显示一个列表

DataTable dt = new DataTable();
dt = MainClass.GetDatabyQuery("select * from tbl");

if (dt.Rows.Count > 0)
{
    dgv_ClientDetail.DataSource = dt;
}

我有这种方法可以从 datagridview 中的数据库中获取值,但我想要一个 datagridview 组合框列,并且想在一个 dgv 组合框和另一个 dgv texbox 中绑定数据。如果有人知道然后告诉我。这里有三列名称、城市、联系人。我想在 dgv 组合框列中显示多个联系人

只是 select NameCitydt 中,这样你就可以做类似的事情,

        dgv_ClientDetail.DataSource = dt;
        DataGridViewComboBoxColumn dgvCboColumn = new DataGridViewComboBoxColumn();
        dgvCboColumn.Name = "Contacts";
        dgvCboColumn.DataSource = dtContacts; //DataTable that contains contact details
        dgvCboColumn.DisplayMember = "Name";
        dgvCboColumn.ValueMember = "Id";
        dataGridView1.Columns.Add(dgvCboColumn);

编辑:

        dgv_ClientDetail.DataSource = new DataView(dt)
                                         .ToTable(true, new string[] { "Name", "City" });
        DataGridViewComboBoxColumn dgvCboColumn = new DataGridViewComboBoxColumn();
        dgvCboColumn.Name = "Contacts";
        dgv_ClientDetail.Columns.Add(dgvCboColumn);
        foreach (DataGridViewRow row in dgv_ClientDetail.Rows)
        {
            DataGridViewComboBoxCell cboContacts = (DataGridViewComboBoxCell)
                                                         (row.Cells["Contacts"]);
            cboContacts.DataSource = //Get the contact details of a person,
                                     //using his Name or Id field (row.Cells["Name"]);
            cboContacts.DisplayMember = "Name"; //Name column of contact datasource
            cboContacts.ValueMember = "Id";//Value column of contact datasource
        }

希望这对您有所帮助...

尝试这样的事情

// Loop through rows and get each combobox

foreach (DataGridViewRow row in dgv_ClientDetail.Rows)
{
     DataGridViewComboBoxCell ContactCombo = (DataGridViewComboBoxCell)(row.Cells[index of Contact column]);

     ContactCombo.DataSource = // your contacts datasource;
     ContactCombo.DisplayMember = "name of field to be displayed like say ContactName";
     ContactCombo.ValueMember = "Id";
}

编辑:您还需要为组合框设置 ValueMember

试试这个:-

首先在 DataGridView 中为联系人设置数据键。在 ItemDatabound Events 上,只需使用数据键来过滤该 DataGridView 中的每个数据项。