C从System.Data.DataRowView转换为字符串

private void button1_Click(object sender, EventArgs e)
{
    DataTable dt = new DataTable();
    dt.Columns.Add("ID", typeof(int));
    dt.Columns.Add("Name", typeof(string));

    dt.Rows.Add(1, "A");
    dt.Rows.Add(2, "B");
    dt.Rows.Add(3, "C");

    comboBox1.DataSource = dt;
    comboBox1.DisplayMember = "Name";
    comboBox1.ValueMember = "ID";

    // use SelectedValue to select the item with ID == 2
    comboBox1.SelectedValue = 2;

    // use FindStringExact() to find the index of text displayed in the item
    comboBox1.SelectedIndex = comboBox1.FindStringExact("C");
}

private void button2_Click(object sender, EventArgs e)
{
    foreach (var item in comboBox1.Items)
        MessageBox.Show(((DataRowView)item)["Name"].ToString());
}

var newItems = new List<string>();
for(var i = 0; i < combobox1.Items.Count; i++)
{
   newItems.Add(combobox1.items[i].Text);
}

foreach(item in newItems)
{
var newVariable1 = item;
}

更多的信息和你当前的代码会很酷,我可以帮助你更具体地解决你的问题。

同样的解决方法,希望它有助于: 将DATAView源转换回DATABATE,然后循环通过它。

DataView dt = (DataView)comboBox1.DataSource;
        DataTable s = dt.Table;
        foreach(DataRow dr in s.Rows)

            MessageBox.Show(dr[0].ToString()); 

解决方案:

DataTable DtShow=new DataTable();

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

 {

   Console.WriteLine(DtShow.Rows[i].Field<string>(0));

 }

**   Field<string>(0) Column number start from 0