问题描述
嗨
先生，
我想用c#开发投票表决应用程序.
与mysql数据库.但是它会给出类似ADO的错误:列"Answer"不属于表Table.
请帮我.
代码如下，
Hi
Sir,
I want to developed vote polling application in c# .
with mysql database .but it give error like ADO: Column ''Answer'' does not belong to table Table .
plz help me.
code are as follows,
using System;
using System.Data;
using System.Configuration;
using System.Collections;
using System.Collections.Generic;
using System.Diagnostics;
using System.Data.Odbc;
partial class Poll: System.Web.UI.Page
{
protected void Page_Load(object sender, System.EventArgs e)
{
if (!IsPostBack)
{
lblPollQuestion.Text = "Answer";
DisplayPoll();
}
}
private void DisplayPoll()
{
try
{
DataSet ds = GetActivePoll();
// ArrayList listCols = new ArrayList();
// Displays the poll
lblPollQuestion.Text = (ds.Tables[0].Rows[0]["Question"]).ToString();
int i = 0;
foreach (DataRow dr in ds.Tables[0].Rows)
{
rdoPollOptionList.Items.Add(dr["Answer"].ToString());
rdoPollOptionList.Items[i].Value = dr["PK_OptionId"].ToString();
rdoPollOptionList.SelectedIndex =0;
// listCols.Add("Answer");
i++;
}
} catch (Exception ex)
{
throw ex;
}
}
private DataSet GetActivePoll()
{
try
{
string strConnString = (System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"]).ToString();
//SqlConnection sqlConn = new SqlConnection(strConnString);
OdbcConnection MyConnection = new OdbcConnection(strConnString );
MyConnection.Open();
//SqlClient.SqlConnection sqlConn = new SqlClient.SqlConnection();
//sqlConn.ConnectionString = ("Data Source=C:InetpubwwwrootPollsPollsApp_Data.mdf");
// Opens the connection
//sqlConn.Open();
OdbcCommand sqlCmd = new OdbcCommand();
sqlCmd.CommandText = "{call GetActivePoll}";
sqlCmd.CommandType = System.Data.CommandType.StoredProcedure;
sqlCmd.Connection = MyConnection ;
// Gets the dataset from the sp
DataSet ds = new DataSet();
OdbcDataAdapter da = new OdbcDataAdapter(sqlCmd);
// Execute stored procedure
da.Fill(ds);
// Close connection
MyConnection.Close();
return ds;
} catch (Exception ex)
{
throw ex;
}
}
protected void btnVote_Click( object sender , System.EventArgs e)
{
if (Response.Cookies["Voted"]!= null)
{
Response.Cookies["Voted"].Value = "Voted";
Response.Cookies["Voted"].Expires = DateTime.Now.AddDays(1);
lblError.Visible = false;
// Checks if the user can still vote by using cookie
RecordVote();
} else
{
lblError.Visible = true;
}
}
private void RecordVote()
{
string strConnString= System.Configuration.ConfigurationManager.ConnectionStrings["ConnectionString"].ToString();
// SqlConnection sqlConn = new SqlConnection(strConnString);
OdbcConnection MyConnection = new OdbcConnection(strConnString );
MyConnection.Open();
//SqlClient.SqlConnection sqlConn = new SqlClient.SqlConnection();
//sqlConn.ConnectionString = "Data Source=Ser
OdbcCommand sqlCmd = new OdbcCommand();
sqlCmd.CommandText = "{call IncreamentVotes(?)}";
sqlCmd.CommandType = System.Data.CommandType.StoredProcedure;
sqlCmd.Connection = MyConnection;
// Creation parameters
OdbcParameter sqlParamQuestion = new OdbcParameter("@i_OptionId",SqlDbType.Int);
sqlParamQuestion.Value = rdoPollOptionList.SelectedValue;
sqlCmd.Parameters.Add(sqlParamQuestion);
// Execute stored procedure
sqlCmd.ExecuteNonQuery();
// Close connection
MyConnection.Close();
}
}我使用存储过程
为此，请访问网站.http://www.beansoftware.com/asp.net-tutorials/poll-application.aspx
在vb中实际执行项目，我使用mysql plz在c#中将其转换为我，
谢谢&注意.
是的，我有一张桌子，用大写的答案".
您会看到链接http://www.beansoftware.com/asp.net-tutorials/poll-application.aspx
对于表.我仅在mysql中转换它
这是错误
列"Answer"不属于表Table.
说明:执行当前Web请求期间发生未处理的异常.请查看堆栈跟踪，以获取有关错误及其在代码中起源的更多信息.
异常详细信息:System.ArgumentException:列"Answer"不属于表Table.
源错误:
第54行:
第55行:
第56行:throw ex;
第57行:}
第58行:}
源文件:c:\ Inetpub \ wwwroot \ Polls-CS \ Poll.aspx.cs行:56
堆栈跟踪:
[ArgumentException:列"Answer"不属于表Table.]
c:\ Inetpub \ wwwroot \ Polls-CS \ Poll.aspx.cs中的Poll.DisplayPoll():56
c:\ Inetpub \ wwwroot \ Polls-CS \ Poll.aspx.cs中的Poll.Page_Load(对象发件人，EventArgs e):16
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp，Object o，Object t，EventArgs e)+14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender，EventArgs e)+35
System.Web.UI.Control.OnLoad(EventArgs e)+99
System.Web.UI.Control.LoadRecursive()+50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint，Boolean includeStagesAfterAsyncPoint)+627
I i use stored procedure
for this u go site..http://www.beansoftware.com/asp.net-tutorials/poll-application.aspx
actully the project in vb i convert it in c# with mysql plz help me more
Thanks & regard.
yes i have a table with coloumn ''Answer''.
u see the link http://www.beansoftware.com/asp.net-tutorials/poll-application.aspx
for table .I convert only it in mysql
THIS IS THE ERROR
Column ''Answer'' does not belong to table Table.
Description: An unhandled exception occurred during the execution of the current web request. Please review the stack trace for more information about the error and where it originated in the code.
Exception Details: System.ArgumentException: Column ''Answer'' does not belong to table Table.
Source Error:
Line 54:
Line 55:
Line 56: throw ex;
Line 57: }
Line 58: }
Source File: c:\Inetpub\wwwroot\Polls-CS\Poll.aspx.cs Line: 56
Stack Trace:
[ArgumentException: Column ''Answer'' does not belong to table Table.]
Poll.DisplayPoll() in c:\Inetpub\wwwroot\Polls-CS\Poll.aspx.cs:56
Poll.Page_Load(Object sender, EventArgs e) in c:\Inetpub\wwwroot\Polls-CS\Poll.aspx.cs:16
System.Web.Util.CalliHelper.EventArgFunctionCaller(IntPtr fp, Object o, Object t, EventArgs e) +14
System.Web.Util.CalliEventHandlerDelegateProxy.Callback(Object sender, EventArgs e) +35
System.Web.UI.Control.OnLoad(EventArgs e) +99
System.Web.UI.Control.LoadRecursive() +50
System.Web.UI.Page.ProcessRequestMain(Boolean includeStagesBeforeAsyncPoint, Boolean includeStagesAfterAsyncPoint) +627
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