C#中使用DataTable显示Access数据库中文件列表
private void comboBox1_SelectedIndexChanged(object sender, EventArgs e)
{
this.comboBox2.Items.Clear();
switch(this.comboBox1.SelectedIndex)
{
case 0:
try
{
OleDbConnection conn = new OleDbConnection(@"Provider=Microsoft.Jet.OLEDB.4.0;User ID=admin;Data Source=C:\tmpAccess\DataBase1.mdb");
conn.Open();
if(conn.State == System.Data.ConnectionState.Open){
Console.WriteLine("Success");
}
DataTable test = conn.GetOleDbSchemaTable(OleDbSchemaGuid.Tables, new Object[] { null, null, null, "Table" });
this.dataGridView1.DataSource =test;
int tableIndex = test.Columns.IndexOf("TABLE_NAME");
foreach (DataRow row in test.Rows)
comboBox2.Items.Add(row[tableIndex].ToString());
&nb
相关文档：
using System;
using System.Configuration;
using System.Data;
using System.Linq;
using System.Web;
using System.Web.Security;
using System.Web.UI;
using System.Web.UI.HtmlControls;
using System.Web.UI.WebControls;
using System.Web.UI.WebControls.WebParts;
using System.Xml.Linq;
using MySql ......
protected void BindData1()
{
OracleConnection orcn = new OracleConnection("User ID=wesoftwcp; Password=wesoft; Data Source=oradb");
orcn.Open();
&nb ......
C#序列化xml
关键步骤：
XmlSerializer xSerializer = new XmlSerializer(typeof(MyObj));
StringWriter sWriter = new StringWriter(CultureInfo.InvariantCulture);
XmlTextWriter xTextWriter = new XmlTextWriter(sWriter);
......
怎么通过ODBC使用wxWidgets连接Access数据库
1、wxWidgets库中ODBC的编译
默认编译时，ODBC库中的没有导出，致使调用wxDbConnectInf，wxDbTable等类函数是时出现链接错误的问题，故首先要编译ODBC库为导出 类库，这需要在"Include"目录下的"Setup.h"中对#define wxUSE_ODBC 0设置为1，重新编译即可.
2、数据库的链接� ......
MSSQL:
declare @begin datetime
declare @End datetime
set @begin=getdate()
--执行的语句写在这里
set @End=getdate()
select datediff(millisecond,@begin,@End) as 执行的时间
--millisecond表示毫秒 如果看秒可以使用ss
C#:
很多时� ......
