-1
我試圖從數據訪問中獲取combobox1
,但它不起作用。從訪問中獲取數據無法使用組合框
我的數據庫是一個.accdb
文件。我的表名是「list」。
的列名:
「ID_lista」=自動編號
「諾姆」= smalltext
「鏈接」=超級鏈接
下面是代碼:
using System;
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Linq;
using System.Text;
using System.Windows.Forms;
using System.Data.OleDb;
namespace teste_pwd
{
public partial class Form2 : Form
{
public Form2()
{
InitializeComponent();
}
public static class Globals
{
public static String ConString = "Provider=Microsoft.ACE.OLEDB.12.0; Data Source=" + Application.StartupPath + "\\PWD_BD.accdb";
public static OleDbConnection ConnectionString = new OleDbConnection(Globals.ConString);
}
private void Form2_Load(object sender, EventArgs e)
{
Globals.ConnectionString.Close();
pCMB();
}
public void pCMB()
{
try
{
Globals.ConnectionString.Open();
int i = 0;
string query = "SELECT * FROM List";
OleDbDataAdapter dataAdapeter = new OleDbDataAdapter(query, Globals.ConnectionString);
DataSet mydata = new DataSet();
dataAdapeter.Fill(mydata, "List");
comboBox1.DisplayMember = "Texto";
comboBox1.ValueMember = "Valor";
DataTable tb = new DataTable();
tb.Columns.Add("Texto", typeof(string));
tb.Columns.Add("Valor", typeof(int));
for (i = 0; i <= mydata.Tables[0].Rows.Count - 1; i++)
{
tb.Rows.Add(mydata.Tables[0].Rows[i].ItemArray[1], mydata.Tables[0].Rows[i].ItemArray[0]);
}
comboBox1.DataSource = tb;
Globals.ConnectionString.Close();
}
catch (Exception ex) {
MessageBox.Show(ex.Message);
}
}
}
}
有意詳細說明_not working_部分嗎?什麼不起作用? – Steve
也許你需要更改表名,因爲它保留字,但請澄清錯誤信息,以及發生了什麼確切的 –
沒有錯誤信息..它只是劑量顯示內容 – BlueFlameB