Question

我想将SQL Server数据库中的数据从多列填充到多个文本框..我有一个代码只能填充一个框..有人可以编辑我的代码...我想提取数据并在名称中显示它，地址，电话号码和日期... PLZ帮助..此代码仅适用于一个文本框..

提前致谢

SqlConnection Conn = new SqlConnection(@"Data Source=rex;Initial Catalog=PersonalDetails;Integrated Security=True");
SqlCommand Comm1 = new SqlCommand("Select * From PersonalUsers ", Conn);

Conn.Open();
SqlDataReader DR1 = Comm1.ExecuteReader();

if (DR1.Read())
{
    Name.Text = DR1.GetValue(0).ToString();
}

Answer 1

while (DR1.Read())
{

    if(DR1.GetName() == "YourSQLColumnName")
    {
      YourTextBox.Text = (string) DR1["YourSQLColumnName"];
    }

    // Your Other textboxes and columns which you want to match should follow as this template
}

Answer 2

SqlCommand cmd  = new System.Data.SqlClient.SqlCommand(sql, _conn);
SqlDataReader rdr = cmd.ExecuteReader();
System.Data.DataTable tbl = new System.Data.DataTable("Results");
tbl.Load(rdr);

if (tbl.Rows.Count > 0)
   Name.Text = tbl.Rows[0]["column_name"].ToString();

Answer 3

string cs=System.Configuration.ConfigurationManager.ConnectionString["DBCS"].ConnectionString;
using(OracleConnection con=new OracleConnection(cs))
{
sql="select empname from Emp where empno='"+empno+"'";
OracleCommand cmd  = new System.Data.OracleClient.OracleCommand(sql,con);
con.Open();
OracleDataReader rdr = cmd.ExecuteReader();
if(rdr.Read())
{
EmpName.Text=Convert.ToString(rd["empname"]);
}
}

Answer 4

我假设您想要处理更多行和更多列。

尝试指定列。没有，但如果你这样做，性能会更好。
我假设您有一个名为PersonalUser的类，其中包含指定的属性。
将它按排序顺序排列也很好，所以我添加了



    public List<PersonalUser> FetchMyData()
    {

        SqlConnection Conn = new SqlConnection(@"Data Source=rex;Initial Catalog=PersonalDetails;Integrated Security=True");
        SqlCommand Comm1 = new SqlCommand("Select Name, Address, TelephoneNo,Date From PersonalUsers order by Name", Conn);

        Conn.Open();
        SqlDataReader DR1 = Comm1.ExecuteReader();

        var result = new List<PersonalUser>();
        while (DR1.Read())
        {
            result.Add(new PersonalUser {
                Name = DR1.GetString(0);
                Address= DR1.GetString(1);
                TelephoneNo = DR1.GetString(2);
                Date = DR1.GetString(3)
              }
           );
        }


        return result;
    }

如果需要变得比这复杂得多，我也愿意使用Entity Framwork ..

如何将数据从SQL Server数据库列填充到文本框

4 个答案: