将SQL表读入C＃DataTable [英] Read SQL Table into C# DataTable

问题描述

我已经阅读了很多关于将DataTable插入到SQL表中的帖子，但是有没有简单的方法来将SQL表拉入.NET DataTable？

I've read a lot of posts about inserting a DataTable into a SQL table, but is there an easy way to pull a SQL table into a .NET DataTable?

推荐答案

这里给出一个镜头（这只是一个伪代码）

Here, give this a shot (this is just a pseudocode)

using System;
using System.Data;
using System.Data.SqlClient;


public class PullDataTest
{
    // your data table
    private DataTable dataTable = new DataTable();

    public PullDataTest()
    {
    }

    // your method to pull data from database to datatable   
    public void PullData()
    {
        string connString = @"your connection string here";
        string query = "select * from table";

        SqlConnection conn = new SqlConnection(connString);        
        SqlCommand cmd = new SqlCommand(query, conn);
        conn.Open();

        // create data adapter
        SqlDataAdapter da = new SqlDataAdapter(cmd);
        // this will query your database and return the result to your datatable
        da.Fill(dataTable);
        conn.Close();
        da.Dispose();
    }
}

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