易截截图软件、单文件、免安装、纯绿色、仅160KB

C# Access Update 注意事项


private const string ACCESS_UPDATE_ADMIN_PASSWORD = "UPDATE [Admins] SET admin_pass=@adminPass WHERE admin_name=@adminName";
dbInstance.SetParameters("@adminPass", _adminDObj.Admin_Password);
dbInstance.SetParameters("@adminName", _adminDObj.Admin_Name);
参数的顺序必须和SQL的顺序一直,否则无法更新。如上面这2行颠倒了,则会无法更新


相关文档:

网站地图的做法 (asp.net C#)

 
1、添加一个网站地图项 Web.sitemap项
2、在 Web.sitemap项的写法如下:
<?xml version="1.0" encoding="utf-8"?>
<siteMap xmlns="http://schemas.microsoft.com/AspNet/SiteMap-File-1.0
">
<siteMapNode url="default.aspx" title="首页&qu ......

Fingerprint Time Attendance Access System

 HTML clipboard
Revealing the revolutionary fingerprint access clocking in/out system for
businesses. No more cards, no more paperwork, no more hassle! This digital
fingerprint access terminal and data logger registers finger prints for time
management plus also works as an authorized pe ......

Access Code + Fingerprint Door Lock

Double action
fingerprint
and access code security door lock for your home,
office or small business. Get modern biometric security at your entry point with
this standard door handle style double action doorlock.
This is the most secure and convenient method in assuring only authorized peo ......

C# 执行SQL事务实例代码

 [C#]
public void RunSqlTransaction(string myConnString)
{
    SqlConnection myConnection = new SqlConnection(myConnString);
    myConnection.Open();
    SqlCommand myCommand = myConnection.CreateCommand();
    SqlTransaction m ......

access 的多个left join 要加括号

 string sql = "select  a.orderId,a.UserName,b.CodeValue as Delivery ,a.DeliveryAddress,a.PhoneNum,c.CodeValue as Payment,d.CodeValue as OrderStatus,d.CodeValue as OrderStatusID,a.OrderTime,a.Merchant from  (( m_Order a ";
            sql += " left j ......
© 2009 ej38.com All Rights Reserved. 关于E健网联系我们 | 站点地图 | 赣ICP备09004571号