点击按钮1可以把值传到文本框1中,点击按钮2可以把值传到文本框2中,可是点击按钮2后,文本框1中的内容不见了,请问这是怎么回事 点击按钮1可以把值传到文本框1中,点击按钮2可以把值传到文本框2中,可是点击按钮2后,文本框1中的内容不见了,请问这是怎么回事 解决方案 » 免费领取超大流量手机卡,每月29元包185G流量+100分钟通话, 中国电信官方发货 if (!IsPostBack) { SqlConnection sqlcon = new SqlConnection("Data Source=(local);Initial Catalog=Company;Integrated Security=True;Pooling=False"); sqlcon.Open(); string sqlstr1 = "Select * from gys where gysbh='" + Request["gysbh"] + "'"; string sqlstr2 = "Select * from htb where htbh='" + Request["htbh"] + "'"; SqlDataAdapter myApter1 = new SqlDataAdapter(sqlstr1, sqlcon); SqlDataAdapter myApter2 = new SqlDataAdapter(sqlstr2, sqlcon); DataSet ds1 = new DataSet(); DataSet ds2 = new DataSet(); myApter1.Fill(ds1, "gys"); myApter2.Fill(ds2, "htb"); if (ds1.Tables[0].Rows.Count > 0) { DataRow rowView = ds1.Tables["gys"].Rows[0]; TextBox4.Text = Convert.ToString(rowView["gysmc"]); TextBox5.Text = Convert.ToString(rowView["gysdz"]); TextBox6.Text = Convert.ToString(rowView["lxdh"]); sqlcon.Close(); } if (ds2.Tables[0].Rows.Count > 0) { DataRow rowView = ds2.Tables["htb"].Rows[0]; TextBox3.Text = Convert.ToString(rowView["htbh"]); sqlcon.Close(); } }我把合同编号文本框的validationgroup设置为textbox3,按钮的是button3,供应商也如此 Byte数据流转换为string型问题,部分字符显示乱码 sqlhelper 问题 安装程序包时出现错误1001,这是怎么回事? JS错误.缺少";" 请问接口变量如何去理解? 请问计算月之间的月数. 请问这个查找的正则表达式该如何写? 怎么生成对比曲线图? 用.NET支持扫描枪问题,客户就在身边,急啊!! 哪里可以找到微星6390(km266a,集成声显卡)的驱动程序啊? c#连接sql数据库错误 :在没有任何数据时进行无效的读取尝试 做一个查询,有点小问题,求助
{
SqlConnection sqlcon = new SqlConnection("Data Source=(local);Initial Catalog=Company;Integrated Security=True;Pooling=False");
sqlcon.Open();
string sqlstr1 = "Select * from gys where gysbh='" + Request["gysbh"] + "'";
string sqlstr2 = "Select * from htb where htbh='" + Request["htbh"] + "'";
SqlDataAdapter myApter1 = new SqlDataAdapter(sqlstr1, sqlcon);
SqlDataAdapter myApter2 = new SqlDataAdapter(sqlstr2, sqlcon);
DataSet ds1 = new DataSet();
DataSet ds2 = new DataSet();
myApter1.Fill(ds1, "gys");
myApter2.Fill(ds2, "htb");
if (ds1.Tables[0].Rows.Count > 0)
{
DataRow rowView = ds1.Tables["gys"].Rows[0];
TextBox4.Text = Convert.ToString(rowView["gysmc"]);
TextBox5.Text = Convert.ToString(rowView["gysdz"]);
TextBox6.Text = Convert.ToString(rowView["lxdh"]);
sqlcon.Close(); } if (ds2.Tables[0].Rows.Count > 0)
{
DataRow rowView = ds2.Tables["htb"].Rows[0];
TextBox3.Text = Convert.ToString(rowView["htbh"]);
sqlcon.Close();
}
}
我把合同编号文本框的validationgroup设置为textbox3,按钮的是button3,供应商也如此