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></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>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></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></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></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 } }
2、使用反射给控件赋值
根据id取一个员工（Employee），Employee类继承自BaseObj类，根据这个客户对象给页面控件赋值：