名称“UpDataDBData”在类或命名空间“Example_1_1.UpdateData”中不存在

本文介绍了一个简单的C#程序用于更新Access数据库中的记录,并通过一个实例展示了如何解决因函数名大小写不一致导致的运行错误。

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  private void UpdataDBData(String myID,String myName)
  {
   //设置访问数据库的连接
   string accessString= ACCESSCONNECTIONSTRING +Server.MapPath("dbfiles//MyFirstAccessDB.mdb").ToString();
   //设置更新数据库的SQL语句
   string cmdText = "UPDATE MyDataTable SET MyName="+myName+"WHERE MyID=" +myID;
   //创建访问数据库的连接&Command
   OleDbConnection accessConn = new OleDbConnection(accessString);
   OleDbCommand accessComm = new OleDbCommand(cmdText,accessConn);
   try
   {
    accessConn.Open();
    accessComm.ExecuteNonQuery();
    accessConn.Close();
   }
   catch(Exception ex)
   {
    Response.Write(ex.Message);
   }
  }
  private void UpdateDataBtn_Click(object sender, System.EventArgs e)
  {
   if(MyID.Text.Trim().Length>0 && MyName.Text.Trim().Length>0)
   {
    UpDataDBData(MyID.Text.Trim(),MyName.Text.Trim());
    ShowDBData();
   }
  }
  经过检查发现命名空间的引用集已经引用完毕,困扰了半个小时后,终于发现了函数UpDataDBData(MyID.Text.Trim(),MyName.Text.Trim());
调用时upDataDBData应该是updataDBData,完全是大小写错误!

 

很好,接下来继续帮我完成下面代码的单元测试编写 package com.st.systemsettings.presenter; import android.util.Log; import com.st.systemsettings.R; import com.st.systemsettings.base.BasePresenter; import com.st.systemsettings.bean.HomeItemBean; import com.st.systemsettings.contract.HomeContract; import com.st.systemsettings.manager.SystemNotifyManager; import com.st.systemsettings.utils.UserModeUtils; import java.util.ArrayList; import java.util.List; public class HomePresenterImpl implements HomeContract.Presenter, BasePresenter<HomeContract.View> { private static final String TAG = "HomePresenterImpl"; private HomeContract.View mView; @Override public void registerView(HomeContract.View view) { Log.e(TAG, "registerView: "); mView = view; } @Override public void unRegisterView() { Log.e(TAG, "unRegisterView: "); mView = null; } @Override public void init() { Log.e(TAG, "init: "); if (mView != null) { mView.updateData(getItemLabelList()); } } private List<HomeItemBean> getItemLabelList() { List<HomeItemBean> list = new ArrayList<>(); if (UserModeUtils.getInstance().isChildMode()) { list.add(new HomeItemBean(R.string.home_item_label_wifi, R.mipmap.iv_home_label_wifi)); list.add(new HomeItemBean(R.string.home_item_label_bluetooth, R.mipmap.iv_home_label_bluetooth)); list.add(new HomeItemBean(R.string.time_item_manager, R.mipmap.iv_home_time_manager)); list.add(new HomeItemBean(R.string.home_item_system, R.mipmap.iv_home_label_system)); } else { list.add(new HomeItemBean(R.string.home_item_label_wifi, R.mipmap.iv_home_label_wifi)); list.add(new HomeItemBean(R.string.home_item_label_bluetooth, R.mipmap.iv_home_label_bluetooth)); list.add(new HomeItemBean(R.string.home_item_voice, R.mipmap.iv_home_label_voice)); list.add(new HomeItemBean(R.string.home_item_display, R.mipmap.iv_home_label_display)); list.add(new HomeItemBean(R.string.home_item_picture, R.mipmap.iv_home_label_picture)); list.add(new HomeItemBean(R.string.home_item_user_mode, R.mipmap.iv_home_label_user_model)); list.add(new HomeItemBean(R.string.home_item_system, R.mipmap.iv_home_label_system)); list.add(new HomeItemBean(R.string.home_item_user_manager, R.mipmap.iv_home_label_user_manager)); } return list; } @Override public void updateSettingFocus(int type) { Log.e(TAG, "updateSettingFocus type : " + type); SystemNotifyManager.getInstance().onSettingsClearFocus(type); } }
07-24
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