Question

我正在尝试遍历数据库，并根据查询为每一行创建一个按钮。我应该得到3个按钮作为回报，但是只创建了一个。

 DataTable dt = new DataTable();
 con.Open();
 string TeamID = (string)Session["TeamID"];
 SqlDataReader myReader = null;
 SqlCommand myCommand = new SqlCommand("SELECT * FROM Players1 WHERE 
 TeamID = " + teamID, con);
 myCommand.Parameters.AddWithValue("@TeamID", TeamID);
 myReader = myCommand.ExecuteReader();
 while (myReader.Read())
 {
   foreach (Object ob in myReader)
 {
  Button1.Text = "" + (myReader["Name"].ToString());
  }
 }

我应该根据数据库中的数据获得3个按钮

Answer 1

您需要自己创建Button。对于从myReader对象外观here中获取数据不是很确定

DataTable dt = new DataTable();
con.Open();
string TeamID = (string)Session["TeamID"];
SqlDataReader myReader = null;
SqlCommand myCommand = new SqlCommand("SELECT * FROM Players1 WHERE 
TeamID = " + teamID, con);
myCommand.Parameters.AddWithValue("@TeamID", TeamID);
myReader = myCommand.ExecuteReader();
while (myReader.Read())
{
    foreach (Object ob in myReader)
    {
        Button btn = new Button();
        btn.ID = "Btn_" + ob["Id"]; //I suppose the table has an Id
        btn.Text = ob["Name"]; //I also suppose the table has a Name column
        //for click events
        //btn.Click = btn_Click_Event; 
    }
}

Answer 2

我不知道您应该在哪里获得三个按钮。从外观上看，您只是在更改Button1的文本，它是一个按钮。您要更改Button1的文本三次。我想您还希望Button2和Button3也能更改。

如何遍历数据库表并为列创建按钮

2 个答案: