c# 用Lable显示读取到的SQL数据
string selectUserID = "select UserID from dl where ksh='" + comboBox5.Text + "'";
SqlConnection conn = new SqlConnection(strconn);
SqlCommand nselectUserID = new SqlCommand(selectUserID, conn);
conn.Open();
SqlDataReader ksh=nselectUserID.ExecuteReader();
label3.Text = ksh.ToString();
conn.Close();
为什么显示出来的不对，显示的是“System.Data.SqlClient.SqlDataReade”。



[解决办法]
if(ksh.Read())
{
label3.Text = reader["UserID"].ToString();
}

[解决办法]
string selectUserID = "select UserID from dl where ksh='" + comboBox5.Text + "'";
SqlConnection conn = new SqlConnection(strconn);
SqlCommand nselectUserID = new SqlCommand(selectUserID, conn);
conn.Open();
SqlDataReader ksh=nselectUserID.ExecuteReader();
string strValue = "";
while(ksh.Read())
{
strValue = strValue + ksh[0].ToString() + " ";
}
label3.Text = strValue;
conn.Close();