Question

我有一个SQL数据库表，有两列; ＆＃39; ID＆＃39;和＆＃39;姓名＆＃39;。我想从数据库中读取这些数据并将其添加到ListBox中，并使用＆＃39; Name＆＃39;作为新的项目文本字段和＆＃39; ID＆＃39;作为价值领域。

这是我到目前为止所做的：

        using (SqlConnection conn = new SqlConnection("ConnectionString)) {
        conn.Open();
        using (SqlCommand cmd = new SqlCommand("SELECT ID, Name FROM Buildings", conn)) {
            using (SqlDataReader reader = cmd.ExecuteReader()) {
                while (reader.Read()) {
                    for (int i = 0; i < reader.FieldCount; i++) {
                        ........................
                    }
                }
            }

任何帮助都将不胜感激。

Answer 1

你可以试试这个：

SqlConnection conn = new SqlConnection("Your Connection String");
SqlCommand cmd = new SqlCommand("Your SQL Query", conn);
conn.Open();
SqlDataAdapter da = new SqlDataAdapter(cmd);
DataTable dt = new DataTable();
da.Fill(dt);
conn.Close();

ListView1.DataSource = dt;
ListView1.DataBind();

Answer 2

结束工作

int selectedBuilding = int.Parse(listBox1.GetItemText(listBox1.SelectedValue));

using (SqlConnection conn = new SqlConnection("ConnectionStrin")) {
            using (SqlCommand cmd = new SqlCommand("SELECT ID, Name FROM Printers WHERE BuildingID = " + selectedBuilding + "", conn)) {
                conn.Open();
                SqlDataAdapter da = new SqlDataAdapter(cmd);
                DataTable dt = new DataTable();
                da.Fill(dt);
                conn.Close();

            listBox2.DataSource = dt;
            listBox2.ValueMember = "ID";
            listBox2.DisplayMember = "Name";
        }
    }

谢谢你的帮助！

从SQL填充列表框时间的文本字段和值字段

2 个答案: