[英]Populate Datatable - Row with Data from Sql-Command with several selectquery
[英]Update sql-command string from c# ExecuteNonQuery();
應用程序有效,但通過WPF進行的更新無效
string sqlIns = "UPDATE Team_table SET result1 = '4:2' where name1=@Team1 and name2=@Team1";
string Team1_string = Team1.Text;
// Team1,Team2,result1,result2是TextBox控件的名稱
cmdIns.Parameters.AddWithValue("@Team1", Team1_string);
string Team2_string = Team2.Text;
cmdIns.Parameters.AddWithValue("@Team2", Team2_string);
string result1_string = Result1.Text;
cmdIns.Parameters.AddWithValue("@result1", result1_string);
如何運作?
除非您在團隊比賽時更新行,否則錯誤將來自:
name1=@Team1 and name2=@Team1
我很同情你認為
name1=@Team1 and name2=@Team2
您沒有將連接字符串正確設置為SqlConnection對象
替換為:
SqlConnection con = new SqlConnection(TTKZS);
具有以下內容:
SqlConnection con = new SqlConnection(hhconn);
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