c# 如何将DataTable转为string[,]或者string[][]数组或者arrarlist?
c# 如何将DataTable转为string[,]或者string[][]数组或者arrarlist?
public string[][] getbookByDataSet()
{
string[][] rs = null;
String sql="select * from suppliers";
//获取数据库连接
sqlConn = ME_DBUtil.getConn();
adatapter = new SqlDataAdapter(sql, sqlConn);
ds = new DataSet();
adatapter.Fill(ds, "suppliers");
for(int i =0;i< ds.Tables["suppliers"].Rows.Count;i++)
{
for(int b =0;b < ds.Tables["suppliers"].Columns.Count;b++)
{
rs[i][b] =ds.Tables["suppliers"].Rows[i-1][b-1].ToString();
}
Console.WriteLine();
}
Console.ReadKey();
return rs;
}
c# 如何将DataTable转为string[,]或者string[][]数组或者arrarlist?
public string[][] getbookByDataSet()
{
string[][] rs = null;
String sql="select * from suppliers";
//获取数据库连接
sqlConn = ME_DBUtil.getConn();
adatapter = new SqlDataAdapter(sql, sqlConn);
ds = new DataSet();
adatapter.Fill(ds, "suppliers");
for(int i =0;i< ds.Tables["suppliers"].Rows.Count;i++)
{
for(int b =0;b < ds.Tables["suppliers"].Columns.Count;b++)
{
rs[i][b] =ds.Tables["suppliers"].Rows[i-1][b-1].ToString();
}
Console.WriteLine();
}
Console.ReadKey();
return rs;
}
{
string[,] _ReturnText = new string[p_Table.Rows.Count, p_Table.Columns.Count]; for (int i = 0; i != p_Table.Rows.Count; i++)
{
for (int z = 0; z != p_Table.Columns.Count; z++)
{
_ReturnText[i, z] = p_Table.Rows[i][z].ToString();
}
} return _ReturnText;
} 这样不行?
如果你从数据库查出来的东西，有图像列怎么办？
using System.Collections.Generic;
using System.ComponentModel;
using System.Data;
using System.Drawing;
using System.Text;
using System.Windows.Forms;
using System.Data.SqlClient;namespace WindowsApplication22
{
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
} void Form1_Load(object sender, EventArgs e)
{
DataTable DT = new DataTable();
DT.Columns.AddRange(new DataColumn[] { new DataColumn(), new DataColumn(), new DataColumn() });
DT.Rows.Add(new Object[] { "00", "01", "02" });
DT.Rows.Add(new Object[] { "10", "11", "12" });
String[][] Datas = DataTableToArray(DT);
for (int i = 0; i < DT.Rows.Count; i++)
for (int j = 0; j < DT.Columns.Count; j++)
MessageBox.Show(i.ToString() + "行，" + j.ToString() + "列:" + Datas[i][j]); } String[][] DataTableToArray(DataTable DT)
{
String[][] Datas = new String[DT.Rows.Count][];
for (int i = 0; i < DT.Rows.Count; i++)
{
Datas[i] = new String[DT.Columns.Count];
DT.Rows[i].ItemArray.CopyTo(Datas[i], 0);
}
return Datas;
}
}
}