一、效果图
二、实现过程
1、model实体类
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace guolei.Model
{
public class title
{
public int id { get; set; }
public string tb_title { get; set; }
public DateTime add_time { get; set; }
}
}
2、dal数据访问
/// <summary>
/// 增加数据，首先要添加引用Model层
/// </summary>
/// <param name="model"></param>
/// <returns></returns>
public int Add(Model.title model)
{
StringBuilder strSql = new StringBuilder();
strSql.Append("insert into title(");
strSql.Append("tb_title,add_time)");
strSql.Append(" values (");
strSql.Append("@title,@add_time)");
strSql.Append(";select @@IDENTITY");
SqlParameter[] parameters = {
new SqlParameter("@title", SqlDbType.NVarChar,50),
new SqlParameter("@add_time", SqlDbType.DateTime)};
parameters[0].Value = model.tb_title;
parameters[1].Value = model.add_time;
//添加主表数据
object obj = new SqlHelper().ExecuteScalar(strSql.ToString(), parameters, CommandType.Text);
model.id = Convert.ToInt32(obj);
return model.id;
}
3、web后台代码
#region 增加操作=================================
private bool DoAdd()
{
bool result = false;
Model.title model = new Model.title();
model.tb_title = txtTb_title.Text.Trim();
model.add_time = Utils.StrToDateTime(txtAdd_time.Text.Trim(), DateTime.Now);
if (new DAL.title().Add(model) > 0)
{
result = true;
}
return result;
}
#endregion
//保存
protected void btnSubmit_Click(object sender, EventArgs e)
{
if (!DoAdd())
{
Response.Write("<script>alert('错误！');</script>");
return;
}
else
{
Response.Write("<script>alert('增加成功！');</script>");
}
}
4、sqlhelper数据访问助手类的相关代码
//带参数的获取第1行1列的数据
public object ExecuteScalar(string cmdText, SqlParameter[] paras, CommandType ct)
{
using (cmd = new SqlCommand(cmdText, Getconn()))
{
cmd.CommandType = ct;
cmd.Parameters.AddRange(paras);
object val = cmd.ExecuteScalar();
return val;
}
}
5、文本转日期格式的代码
using System;
using System.Collections.Generic;
using System.Linq;
using System.Text;
namespace guolei.Common
{
public class Utils
{
public static DateTime StrToDateTime(string str, DateTime defValue)
{
if (!string.IsNullOrEmpty(str))
{
DateTime dateTime;
if (DateTime.TryParse(str, out dateTime))
return dateTime;
}
return defValue;
}
}
}
