/// <summary>
/// 判断用户登录
/// </summary>
/// <param name="sCode"></param> 编号
/// <param name="sUser"></param> 用户名
/// <param name="sPass"></param> 密码
/// <param name="dba"></param> 数据库操作
/// <returns></returns> 返回查询结果值
public int loginJudge(string sCode, string sUser, string sPass, dbAccess dba)
{
String sLog = "Select count(1) as usercount from users where user_code ='"
+ sCode + "' and user_detail = '" + sUser
+ "' and user_pwd = '" + sPass + "'";
return(Convert.ToInt32(getQueryResultBySQL(sLog)));
}
/// <summary>
/// 更新或新增记录 特殊用法
/// </summary>
/// <param name="sTable"></param> 表名
/// <param name="sColValTye"></param> 字符串数组，组成方式为 “字段名，值,字段类型”
/// <param name="sWhere"></param> 更新条件
/// <param name="dba"></param> 数据库处理对象
/// <returns></returns> 返回值，成功1、失败-1
public static int UpdateOrInsert(string sTable, int iMode, List <string> sColValTye, string sWhere, dbAccess dba)
{
try
{
string sSql = "", sSql2 = "", sTmp = "";
string[] strTmp;
if (iMode == 1) //新增
{
for (int i = 0; i < sColValTye.Count; i++)
{
if (sColValTye[i] == null || sColValTye[i].Length == 0)
{
continue;
}
strTmp = sColValTye[i].Split(',');
if (strTmp.Length == 3)
{
if (strTmp[2].ToLower() == "string")
{
sSql += strTmp[0] + ",";
sSql2 += "'" + strTmp[1] + "',";
}
else if (strTmp[2].ToLower() == "datetime")
{
sSql += strTmp[0] + ",";
sSql2 += "cast('" + strTmp[1] + "' as datetime),";
}
else if (strTmp[2].ToLower() == "int")
{
sSql += strTmp[0] + ",";
sSql2 += strTmp[1] + ",";
}
}
else if (strTmp.Length > 3)
{
sTmp = "";
for (int j = 1; j < strTmp.Length - 1; j++)
{
sTmp = sTmp + strTmp[j] + ",";
}
sTmp = sTmp.TrimEnd(',');
if (strTmp[strTmp.Length - 1].ToLower() == "string")
{
sSql += strTmp[0] + ",";
sSql2 += "'" + sTmp + "',";
}
else if (strTmp[strTmp.Length - 1].ToLower() == "datetime")
{
sSql += strTmp[0] + ",";
sSql2 += "cast('" + strTmp[1] + "' as datetime),";
}
else if (strTmp[strTmp.Length - 1].ToLower() == "int")
{
sSql += strTmp[0] + ",";
sSql2 += sTmp + ",";
}
}
}
if (sSql.Length > 0)
{
sSql = sSql.TrimEnd(',');
sSql2 = sSql2.TrimEnd(',');
sSql = "Insert into " + sTable + "(" + sSql + ") values (" + sSql2 + ")";
}
}
else if (iMode == 2) //修改
{
for (int i = 0; i < sColValTye.Count; i++)
{
if (sColValTye[i] == null || sColValTye[i].Length == 0)
{
continue;
}
strTmp = sColValTye[i].Split(',');
if (strTmp.Length == 3)
{
if (strTmp[2].ToLower() == "string")
{
sSql += strTmp[0] + " = '" + strTmp[1] + "',";
}
else if (strTmp[2].ToLower() == "datetime")
{
sSql += strTmp[0] + " = cast('" + strTmp[1] + "' as datetime),";
}
else if (strTmp[2].ToLower() == "int")
{
sSql += strTmp[0] + " = " + strTmp[1] + ",";
}
}
else if (strTmp.Length > 3)
{
sTmp = "";
for (int j = 1; j < strTmp.Length - 1; j++)
{
sTmp = sTmp + strTmp[j] + ",";
}
sTmp = sTmp.TrimEnd(',');
if (strTmp[strTmp.Length - 1].ToLower() == "string")
{
sSql += strTmp[0] + " = '" + sTmp + "',";
}
else if (strTmp[strTmp.Length - 1].ToLower() == "datetime")
{
sSql += strTmp[0] + " = cast('" + strTmp[1] + "' as datetime),";
}
else if (strTmp[strTmp.Length - 1].ToLower() == "int")
{
sSql += strTmp[0] + " = " + sTmp + ",";
}
}
}
if (sSql.Length > 0)
{
sSql = sSql.TrimEnd(',');
sSql = "Update " + sTable + " Set " + sSql + (sWhere.Length > 0 ? sWhere : "");
}
}
if (sSql.Length > 0 && dba.UpdateDbBySQL(sSql) != 1)
{
return(-1);
}
}
catch
{
return(-1);
}
return(1);
}
private void btnLogin_Click(object sender, EventArgs e)
{
if (txtCode.Text.Trim() == "")
{
MessageBox.Show("用户编码不能为空，请输入！", "提示");
txtCode.Focus();
return;
}
;
if (txtUser.Text.Trim() == "")
{
MessageBox.Show("用户名称不能为空，请输入！", "提示");
txtUser.Focus();
return;
}
;
if (txtPass.Text.Trim() == "")
{
MessageBox.Show("用户密码不能为空，请输入！", "提示");
txtPass.Focus();
return;
}
;
dbAccess dA = new dbAccess();
dA.conn.ConnectionString = GetConnectString();
try
{
if (dA.OpenConn())
{
if (dA.loginJudge(txtCode.Text.Trim(), txtUser.Text.Trim(), txtPass.Text.Trim(), dA) != 1)
{
MessageBox.Show("登录失败，请重新检查用户编码、用户姓名、登录密码！！", "错误", MessageBoxButtons.OK, MessageBoxIcon.Exclamation);
txtCode.Focus();
return;
}
}
else
{
MessageBox.Show("数据库连接失败，请检查连接设置！", "提示");
return;
}
mainForm sMain = new mainForm();
mainForm.dba = dA;
sMain.Show();
this.Hide();
}
catch (Exception e1)
{
MessageBox.Show(e1.Message + "\r\n请重新设置数据库连接！", "错误");
return;
}
finally
{
if (dA.ConnState == ConnectionState.Open)
{
dA.CloseConn();
}
dA = null;
}
}