如何添加另一個日期列字段代碼，以便更新可以在gridview中工作？

我有這張名爲EVENT_ANNOUNCE的表，我用它在gridview中顯示數據。目前，我可以更新EVENTTYPE，EVENTNAME和STARTDATE。但是現在我想添加另一個ENDDATE列代碼，以便可以更新ENDDATE列。如何添加ENDDATE列代碼？正如您從第三張屏幕截圖中看到的那樣，我在輸入時出錯。以下代碼是沒有ENDDATE代碼的代碼。從第三張截圖開始，我添加了ENDDATE代碼後的代碼。由於如何添加另一個日期列字段代碼，以便更新可以在gridview中工作？

enter image description here

錯誤，當我試圖把在ENDDATE列字段中的代碼。 enter image description here

protected void grdEvent_RowUpdating(object sender, GridViewUpdateEventArgs e) 
    { 
     int selectedRow = e.RowIndex; //get selected row 
     // get product id from data key 
     int id = (int)grdEvent.DataKeys[selectedRow].Value; 

     // get current grid view row 
     GridViewRow row = (GridViewRow)grdEvent.Rows[selectedRow]; 
     TextBox eventtype = (TextBox)row.FindControl("txtEventType"); 
     // find text box for txtPrice 
     TextBox eventname = (TextBox)row.FindControl("txtEventName"); 
     TextBox startdate = (TextBox)row.FindControl("txtStartDate"); 
     TextBox enddate = (TextBox)row.FindControl("txtEndDate"); 
     // Remove $ sign 
     string strEventType = eventtype.Text; 
     string strEventName = eventname.Text; 
     string strStartDate = startdate.Text; 
     string strEndDate = enddate.Text; 
     DateTime datStartDate; 
     DateTime datEndDate; 
     if (DateTime.TryParseExact(strStartDate, new string[] { "dd/MM/yyyy" } , 
           System.Globalization.CultureInfo.InvariantCulture, 
           System.Globalization.DateTimeStyles.None, out datStartDate)) 
     { 
      updateEventGridviewRecord(id, strEventType, strEventName, datStartDate); 
     } 


     else 
     { 
      lblError.Visible = true; 
      lblError.Text = "Invalid Date"; 
      lblSuccess.Visible = false; 
     } 
    } 

    private void updateEventGridviewRecord(int id, string strEventType, string strEventName, DateTime datStartDate) 
    { 
     try 
     { 
      string strConnectionString = ConfigurationManager.ConnectionStrings["ProjectConnectionString"].ConnectionString; 
      SqlConnection myConnect = new SqlConnection(strConnectionString); 

      string strCommandText = "UPDATE EVENT_ANNOUNCE SET [EVENTTYPE][email protected], [EVENTNAME][email protected], [STARTDATE][email protected] WHERE [ID][email protected]"; 

      SqlCommand cmd = new SqlCommand(strCommandText, myConnect); 
      cmd.Parameters.AddWithValue("@id", id); 
      cmd.Parameters.AddWithValue("@EVENTTYPE", strEventType); 
      cmd.Parameters.AddWithValue("@EVENTNAME", strEventName); 
      cmd.Parameters.AddWithValue("@STARTDATE", datStartDate); 
      myConnect.Open(); 

      int result = cmd.ExecuteNonQuery(); 

      if (result > 0) 
      { 
       lblSuccess.Visible = true; 
       lblSuccess.Text = "Record updated!"; 
       lblError.Visible = false; 
      } 
      else 
      { 
       lblSuccess.Visible = true; 
       lblError.Text = "Update fail"; 
       lblError.Visible = false; 
      } 

      myConnect.Close(); 


      //Cancel Edit Mode 
      grdEvent.EditIndex = -1; 
      bindEventGridView(); 
     } 

     catch 
     { 
      lblError.Visible = true; 
      lblError.Text = "Please Enter Approximate data"; 
      lblSuccess.Visible = false; 
     } 
    }

來源

2014-03-30 Pony

看起來像你試圖一口氣解析strStartDate和strEndDate。只需在if語句中寫一個DateTime.TryParseExact for strEndDate – ray

像這樣。

if (DateTime.TryParseExact(strStartDate, new string[] { "dd/MM/yyyy" } , 
           System.Globalization.CultureInfo.InvariantCulture, 
           System.Globalization.DateTimeStyles.None, out datStartDate) 
    && 
    DateTime.TryParseExact(strEndDate, new string[] { "dd/MM/yyyy" } , 
           System.Globalization.CultureInfo.InvariantCulture, 
           System.Globalization.DateTimeStyles.None, out datEndDate) 
    ) 
    { 
     updateEventGridviewRecord(id, strEventType, strEventName, datStartDate); 
    }

來源

2014-03-30 10:30:41 ray

如何添加另一個日期列字段代碼，以便更新可以在gridview中工作？

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