Question

以下是联系人，但我们可以有多个联系人，因此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;
}

我有这个方法从datagridview中的数据库中获取值，但我想要一个datagridview组合框列，并希望将数据绑定在一个dgv组合框和dgv texbox中的其他组合框中。如果有人知道那么告诉我。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

Answer 1

只需在Name中选择City和dt，以便您可以执行类似的操作，

        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
        }

希望这会有所帮助......

Answer 2

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

Answer 3

试试这个： -

首先在DataGridView中为联系人提供数据密钥。在ItemDatabound事件上，只需使用datakey过滤DataGridView中的每个Dataitem。

如何在datagridview组合框列中绑定数据

3 个答案: