asp.net实现非常实用的自定义页面基类(附源码)

本文实例讲述了asp.net实现非常实用的自定义页面基类。，具体如下：

看到前面几篇文章（如：《asp.net实现利用反射，泛型，静态方法快速获取表单值到Model的方法》）想到的。下面总结发布一个笔者在开发中常用的一个自定义BasePage类,废话不多说了，直接贴代码。

一、BasePage类

1、代码

using System;using System.Data;using System.Configuration;using System.Web;using System.Web.Security;using System.Web.UI;using System.Web.UI.WebControls;using System.Web.UI.WebControls.WebParts;using System.Web.UI.HtmlControls;using System.Reflection;namespace DotNet.Common.WebForm{ using DotNet.Common.Model; using DotNet.Common.Util; public class BasePage : System.Web.UI.Page {  public BasePage()  {  }  protected override void OnInit(EventArgs e)  {   base.OnInit(e);   //CancelFormControlEnterKey(this.Page.Form.Controls); //取消页面文本框的enter key  }  #region 取消页面文本控件的enter key功能  /// <summary>  /// 在这里我们给Form中的服务器控件添加客户端onkeydown脚步事件，防止服务器控件按下enter键直接回发  /// </summary>  /// <param name="controls"></param>  public virtual void CancelFormControlEnterKey(ControlCollection controls)  {   //向页面注册脚本 用来取消input的enter key功能   RegisterUndoEnterKeyScript();   foreach (Control item in controls)   {    //服务器TextBox    if (item.GetType() == typeof(System.Web.UI.WebControls.TextBox))    {     WebControl webControl = item as WebControl;     webControl.Attributes.Add("onkeydown", "return forbidInputKeyDown(event)");    }    //html控件    else if (item.GetType() == typeof(System.Web.UI.HtmlControls.HtmlInputText))    {     HtmlInputControl htmlControl = item as HtmlInputControl;     htmlControl.Attributes.Add("onkeydown", "return forbidInputKeyDown(event)");    }    //用户控件    else if (item is System.Web.UI.UserControl)    {     CancelFormControlEnterKey(item.Controls); //递归调用    }   }  }  /// <summary>  /// 向页面注册forbidInputKeyDown脚本  /// </summary>  private void RegisterUndoEnterKeyScript()  {   string js = string.Empty;   System.Text.StringBuilder sb = new System.Text.StringBuilder();   sb.Append("function forbidInputKeyDown(ev) {");   sb.Append(" if (typeof (ev) != /"undefined/") {");   sb.Append(" if (ev.keyCode || ev.which) {");   sb.Append(" if (ev.keyCode == 13 || ev.which == 13) { return false; }");   sb.Append(" } } }");   js = sb.ToString();   if (!this.Page.ClientScript.IsClientScriptBlockRegistered("forbidInput2KeyDown"))    this.Page.ClientScript.RegisterClientScriptBlock(typeof(Page), "forbidInput2KeyDown", js, true);  }  #endregion  #region 利用反射取/赋页面控件的值  /// <summary>  /// 从页面中取控件值，并给对象赋值  /// </summary>  /// <param name="dataType">要被赋值的对象类型</param>  /// <returns></returns>  public virtual BaseObj GetFormData(Type dataType)  {   BaseObj data = (BaseObj)Activator.CreateInstance(dataType);//实例化一个类   Type pgType = this.GetType(); //标识当前页面   BindingFlags bf = BindingFlags.Public | BindingFlags.Static | BindingFlags.Instance | BindingFlags.NonPublic;//反射标识   PropertyInfo[] propInfos = data.GetType().GetProperties();//取出所有公共属性    foreach (PropertyInfo item in propInfos)   {    FieldInfo fiPage = pgType.GetField(item.Name, bf);//从页面中取出满足某一个属性的字段    if (fiPage != null) //页面的字段不为空,代表存在一个实例化的控件类    {     object value = null;     Control pgControl = (Control)fiPage.GetValue(this); //根据属性，找到页面对应控件，这要求页面控件命名必须和对象的属性一一对应相同     //下面取值     Type controlType = pgControl.GetType();     if (controlType == typeof(Label))     {      value = ((Label)pgControl).Text.Trim();     }     else if (controlType == typeof(TextBox))     {      value = ((TextBox)pgControl).Text.Trim();     }     else if (controlType == typeof(HtmlInputText))     {      value = ((HtmlInputText)pgControl).Value.Trim();     }     else if (controlType == typeof(HiddenField))     {      value = ((HiddenField)pgControl).Value.Trim();     }     else if (controlType == typeof(CheckBox))     {      value = (((CheckBox)pgControl).Checked);//复选框     }     else if (controlType == typeof(DropDownList))//下拉框     {      value = ((DropDownList)pgControl).SelectedValue;     }     else if (controlType == typeof(RadioButtonList))//单选框列表     {      value = ((RadioButtonList)pgControl).SelectedValue;      if (value != null)      {       if (value.ToString().ToUpper() != "TRUE" && value.ToString().ToUpper() != "FALSE")        value = value.ToString() == "1" ? true : false;      }     }     else if (controlType == typeof(Image)) //图片     {      value = ((Image)pgControl).ImageUrl;     }     try     {      object realValue = null;      if (item.PropertyType.Equals(typeof(Nullable<DateTime>))) //泛型可空类型       {       if (value != null)       {        if (string.IsNullOrEmpty(value.ToString()))        {         realValue = null;        }        else        {         realValue = DateTime.Parse(value.ToString());        }       }      }      else if (item.PropertyType.Equals(typeof(Nullable))) //可空类型       {       realValue = value;      }      else      {       try       {        realValue = Convert.ChangeType(value, item.PropertyType);       }       catch       {        realValue = null;       }      }      item.SetValue(data, realValue, null);     }     catch (FormatException fex)     {      DotNet.Common.Util.Logger.WriteFileLog(fex.Message, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");      throw fex;     }     catch (Exception ex)     {      DotNet.Common.Util.Logger.WriteFileLog(ex.Message, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");      throw ex;     }    }   }   return data;  }  /// <summary>  /// 通过对象的属性值，给页面控件赋值  /// </summary>  /// <param name="data"></param>  public virtual void SetFormData(BaseObj data)  {   Type pgType = this.GetType();   BindingFlags bf = BindingFlags.Public | BindingFlags.Instance | BindingFlags.NonPublic | BindingFlags.Static;   PropertyInfo[] propInfos = data.GetType().GetProperties();   foreach (PropertyInfo item in propInfos)   {    FieldInfo myField = pgType.GetField(item.Name, bf);    if (myField != null)    {     Control myControl = (Control)myField.GetValue(this); //根据属性名取到页面控件     object value = item.GetValue(data, null); //取对象的属性值     Type propType = item.PropertyType;     if (value != null)     {      Type valueType = value.GetType();      try      {       Type controlType = myControl.GetType();       if (controlType == typeof(Label))       {        if (valueType == typeof(DateTime))        {         ((Label)myControl).Text = (Convert.ToDateTime(value)).ToShortDateString();        }        else        {         ((Label)myControl).Text = value.ToString();        }       }       else if (controlType == typeof(TextBox))       {        if (valueType == typeof(DateTime))        {         ((TextBox)myControl).Text = (Convert.ToDateTime(value)).ToShortDateString();        }        else        {         ((TextBox)myControl).Text = value.ToString();        }       }       else if (controlType == typeof(HtmlInputText))       {        if (valueType == typeof(DateTime))        {         ((HtmlInputText)myControl).Value = (Convert.ToDateTime(value)).ToShortDateString();        }        else        {         ((HtmlInputText)myControl).Value = value.ToString();        }       }       else if (controlType == typeof(HiddenField))       {        ((HiddenField)myControl).Value = value.ToString();       }       else if (controlType == typeof(CheckBox))       {        if (valueType == typeof(Boolean)) //布尔型        {         if (value.ToString().ToUpper() == "TRUE")          ((CheckBox)myControl).Checked = true;         else          ((CheckBox)myControl).Checked = false;        }        else if (valueType == typeof(Int32)) //整型 (正常情况下,1标识选择,0标识不选)        {         ((CheckBox)myControl).Checked = string.Compare(value.ToString(), "1") == 0;        }       }       else if (controlType == typeof(DropDownList))       {        try        {         ((DropDownList)myControl).SelectedValue = value.ToString();        }        catch        {         ((DropDownList)myControl).SelectedIndex = -1;        }       }       else if (controlType == typeof(RadioButton))       {        if (valueType == typeof(Boolean)) //布尔型        {         if (value.ToString().ToUpper() == "TRUE")          ((RadioButton)myControl).Checked = true;         else          ((RadioButton)myControl).Checked = false;        }        else if (valueType == typeof(Int32)) //整型 (正常情况下,1标识选择,0标识不选)        {         ((RadioButton)myControl).Checked = string.Compare(value.ToString(), "1") == 0;        }       }       else if (controlType == typeof(RadioButtonList))       {        try        {         if (valueType == typeof(Boolean)) //布尔型         {          if (value.ToString().ToUpper() == "TRUE")           ((RadioButtonList)myControl).SelectedValue = "1";          else           ((RadioButtonList)myControl).SelectedValue = "0";         }         else          ((RadioButtonList)myControl).SelectedValue = value.ToString();        }        catch        {         ((RadioButtonList)myControl).SelectedIndex = -1;        }       }       else if (controlType == typeof(Image))       {        ((Image)myControl).ImageUrl = value.ToString();       }      }      catch (FormatException fex)      {       DotNet.Common.Util.Logger.WriteFileLog(fex.Message, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");      }      catch (Exception ex)      {       DotNet.Common.Util.Logger.WriteFileLog(ex.Message, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");      }     }    }   }  }  #endregion  #region 日志处理  /// <summary>  /// 出错处理:写日志,导航到公共出错页面  /// </summary>  /// <param name="e"></param>  protected override void OnError(EventArgs e)  {   Exception ex = this.Server.GetLastError();   string error = this.DealException(ex);   DotNet.Common.Util.Logger.WriteFileLog(error, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");   if (ex.InnerException != null)   {    error = this.DealException(ex);    DotNet.Common.Util.Logger.WriteFileLog(error, HttpContext.Current.Request.PhysicalApplicationPath + "LogFile");   }   this.Server.ClearError();   this.Response.Redirect("/Error.aspx");  }  /// <summary>  /// 处理异常，用来将主要异常信息写入文本日志  /// </summary>  /// <param name="ex"></param>  /// <returns></returns>  private string DealException(Exception ex)  {   this.Application["StackTrace"] = ex.StackTrace;   this.Application["MessageError"] = ex.Message;   this.Application["SourceError"] = ex.Source;   this.Application["TargetSite"] = ex.TargetSite.ToString();   string error = string.Format("URl：{0}/n引发异常的方法：{1}/n错误信息：{2}/n错误堆栈：{3}/n",    this.Request.RawUrl, ex.TargetSite, ex.Message, ex.StackTrace);   return error;  }  #endregion }}