2

当我想从我的数据库中绑定我的网格中的某些内容时，我遇到了这个奇怪的错误，我在过去的几个小时里一直试图找到以下问题的解决方法，但没有任何成功。我在互联网上找到了许多可能的解决方案，但没有一个能解决我的问题。

<%@ Page Title="" Language="C#" MasterPageFile="~/ABBMaster.Master" AutoEventWireup="true"
    CodeBehind="UserEditPanel.aspx.cs" Inherits="HolidayTracker.Administrator.UserEditPanel" %>

<%@ Register Assembly="Telerik.Web.UI" Namespace="Telerik.Web.UI" TagPrefix="telerik" %>
<asp:Content ID="Content1" ContentPlaceHolderID="MainRegionContentPlaceHolder" runat="server">
    <telerik:RadScriptManager ID="rsmTelerik" runat="server">
        <Scripts>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.Core.js"></asp:ScriptReference>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQuery.js"></asp:ScriptReference>
            <asp:ScriptReference Assembly="Telerik.Web.UI" Name="Telerik.Web.UI.Common.jQueryInclude.js"></asp:ScriptReference>
        </Scripts>
    </telerik:RadScriptManager>


    <br />
    <%-- Export script %>
    <%--    <script type="text/javascript">
        function onRequestStart(sender, args) {
            if (args.get_eventTarget().indexOf("ExportToExcelButton") >= 0 ||
                    args.get_eventTarget().indexOf("ExportToWordButton") >= 0 ||
                    args.get_eventTarget().indexOf("ExportToCsvButton") >= 0) {
                args.set_enableAjax(false);
            }
        }
    </script>--%>
    <asp:Panel ID="pnlContent" CssClass="pnlContent" runat="server">

        <asp:Panel ID="pnlHeader" CssClass="pnlHeader" runat="server">
        </asp:Panel>
        <asp:Panel ID="pnlBody" CssClass="pnlBody" runat="server">
            <telerik:RadAjaxPanel ID="RadAjaxPanel1" runat="server" Skin="Default" LoadingPanelID="RadAjaxLoadingPanel1">
                <fieldset style="padding: 10px; margin-bottom: 10px;">
                    <legend>User form</legend>
                    <div class="formRowDiv">
                        <asp:Label ID="label4" CssClass="formLabel" runat="server" Text="Email"></asp:Label>

                        <telerik:RadComboBox ID="rcbSearch" CssClass="rowForm" runat="server" Width="260px"
                            Height="100px" EmptyMessage="Enter Email" EnableLoadOnDemand="true" AutoPostBack="true" AllowCustomText="true" MarkFirstMatch="true"
                            OnItemsRequested="rcbSearch_ItemsRequested" CausesValidation="false" OnSelectedIndexChanged="rcbSearch_IndexChanged" Skin="Default">
                        </telerik:RadComboBox>
                        <asp:RegularExpressionValidator ID="revEmail" runat="server" Display="Dynamic" ControlToValidate="rcbSearch"
                            ValidationExpression="^[\w\.\-]+@[a-zA-Z0-9\-]+(\.[a-zA-Z0-9\-]{1,})*(\.[a-zA-Z]{2,3}){1,2}$"
                            ErrorMessage="Enter a valid email address" />
                        <asp:RequiredFieldValidator ID="rfvEmail" runat="server" Display="Dynamic" ControlToValidate="rcbSearch"
                            ErrorMessage="Can not be empty" CssClass="rowFormValidation" />
                    </div>
                    <div class="formRowDiv">
                        <asp:Label ID="label1" CssClass="formLabel" runat="server" Text="Firstname"></asp:Label>
                        <telerik:RadTextBox ID="rtbFirstName" CssClass="rowForm" runat="server" ReadOnly="false" />
                        <asp:RequiredFieldValidator ID="rfvFirstName" runat="server" Display="Dynamic" ControlToValidate="rtbFirstName"
                            ErrorMessage="Can not be empty" CssClass="rowFormValidation" />
                    </div>
                    <div class="formRowDiv">
                        <asp:Label ID="label2" CssClass="formLabel" runat="server" Text="Lastname"></asp:Label>
                        <telerik:RadTextBox ID="rtbLastName" CssClass="rowForm" runat="server" ReadOnly="false" />
                        <asp:RequiredFieldValidator ID="rfvLastName" runat="server" Display="Dynamic" ControlToValidate="rtbLastName"
                            ErrorMessage="Can not be empty" CssClass="rowFormValidation" />
                    </div>
                    <div class="formRowDiv">
                        <asp:Label ID="label3" CssClass="formLabel" runat="server" Text="Username"></asp:Label>
                        <telerik:RadTextBox ID="rtbUserName" CssClass="rowForm" runat="server" ReadOnly="false" />
                        <asp:RequiredFieldValidator ID="rfvUserName" runat="server" Display="Dynamic" ControlToValidate="rtbUserName"
                            ErrorMessage="Can not be empty" CssClass="rowFormValidation" />
                    </div>
                    <div class="formRowDiv" style="display: none;">
                        <asp:Label ID="label5" CssClass="formLabel" runat="server" Text="AdAccount"></asp:Label>
                        <telerik:RadTextBox ID="rtbAdAccount" CssClass="rowForm" runat="server" ReadOnly="false" />
                    </div>
                    <div class="formRowDiv" style="display: none;">
                        <asp:Label ID="label6" CssClass="formLabel" runat="server" Text="AdDomain"></asp:Label>
                        <telerik:RadTextBox ID="rtbAdDomain" CssClass="rowForm" runat="server" ReadOnly="True" />
                    </div>
                    <div class="formRowDiv">
                        <asp:Label ID="label8" runat="server" Text="Role" CssClass="formLabel"></asp:Label>
                        <telerik:RadComboBox ID="rcbUserRoles" CssClass="rowForm" CheckBoxes="True" EmptyMessage="- Please select -"
                            runat="server" DataTextField="Name" DataValueField="RoleId">
                        </telerik:RadComboBox>
                        <asp:SqlDataSource ID="UserRoleSqlSource" runat="server" ConnectionString="<%$ ConnectionStrings:ConnectionString %>"
                            SelectCommand="SELECT * FROM [HtUserRole]"></asp:SqlDataSource>
                    </div>
                    <div class="formRowDiv">
                        <%--  <asp:Label ID="label7" CssClass="formLabel" runat="server" Text="Annual vacations"></asp:Label> --%>
                        <telerik:RadAjaxPanel ID="RadAjaxPanel2" runat="server" LoadingPanelID="RadAjaxLoadingPanel1">

                            <telerik:RadGrid ID="rgAnnualVacation" runat="server" CellSpacing="0" GridLines="None" AllowPaging="True" AutoGenerateDeleteColumn="True"
                                OnInsertCommand="rgAnnualVacation_InsertCommand" OnDeleteCommand="rgAnnualVacation_DeleteCommand" Height="200px"
                                OnUpdateCommand="rgAnnualVacation_UpdateCommand" OnNeedDataSource="rgAnnualVacation_NeedDataSource">

                                <MasterTableView AutoGenerateColumns="false" DataKeyNames="AnnualVacationId" CommandItemDisplay="Top" InsertItemPageIndexAction="ShowItemOnCurrentPage">

                                    <Columns>
                                        <telerik:GridBoundColumn DataField="AnnualVacationId" Visible="false" DataType="System.Int32" FilterControlAltText="Filter AnnualVacationId column" HeaderText="AnnualVacationId" ReadOnly="True" SortExpression="AnnualVacationId" UniqueName="AnnualVacationId">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridBoundColumn DataField="UserId" Visible="false" DataType="System.Int32" FilterControlAltText="Filter UserId column" HeaderText="UserId" SortExpression="UserId" UniqueName="UserId">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridBoundColumn DataField="FromDate" DataType="System.DateTime" FilterControlAltText="Filter FromDate column" HeaderText="FromDate" SortExpression="FromDate" UniqueName="FromDate">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridBoundColumn DataField="ToDate" DataType="System.DateTime" FilterControlAltText="Filter ToDate column" HeaderText="ToDate" SortExpression="ToDate" UniqueName="ToDate">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridBoundColumn DataField="WorkingTime" DataType="System.Int32" FilterControlAltText="Filter WorkingTime column" HeaderText="WorkingTime" SortExpression="WorkingTime" UniqueName="WorkingTime">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridBoundColumn DataField="VacationDays" DataType="System.Double" FilterControlAltText="Filter VacationDays column" HeaderText="VacationDays" SortExpression="VacationDays" UniqueName="VacationDays">
                                        </telerik:GridBoundColumn>
                                        <telerik:GridEditCommandColumn />
                                    </Columns>

                                    <EditFormSettings EditFormType="Template">
                                        <FormTemplate>
                                            <table>
                                                <tr>
                                                    <td>From</td>
                                                    <td>
                                                        <telerik:RadDatePicker ID="fromdatepicker" runat="server" MaxDate="1/1/2015" DbSelectedDate='<%# Eval("fromdate") == null ? null : Eval("fromdate") %>' TabIndex="4">
                                                        </telerik:RadDatePicker>
                                                    </td>
                                                </tr>
                                                <tr>
                                                    <td>To</td>
                                                    <td>
                                                        <telerik:RadDatePicker ID="todatepicker" runat="server" MinDate="1/1/1900" DbSelectedDate='<%# Eval("todate") == null ? null :Eval("todate")%>'
                                                            TabIndex="4">
                                                        </telerik:RadDatePicker>
                                                    </td>
                                                </tr>
                                                <tr>
                                                    <td>Working time (%)</td>
                                                    <td>
                                                        <telerik:RadNumericTextBox ID="txtWorkingTime" runat="server" NumberFormat-DecimalDigits="0" DbValue='<%# Bind("WorkingTime") %>'></telerik:RadNumericTextBox>
                                                    </td>
                                                </tr>
                                                <tr>
                                                    <td>Vacation days</td>
                                                    <td>
                                                        <telerik:RadNumericTextBox ID="txtVacationDays" runat="server" NumberFormat-DecimalDigits="2" DbValue='<%# Bind("VacationDays") %>'></telerik:RadNumericTextBox>
                                                    </td>
                                                </tr>
                                            </table>
                                            <table style="margin-top: 15px;">
                                                <tr>
                                                    <td>
                                                        <asp:Button ID="btnUpdate" Text='<%# (Container is GridEditFormInsertItem) ? "Insert" : "Update" %>'
                                                            runat="server" CommandName='<%# (Container is GridEditFormInsertItem) ? "PerformInsert" : "Update" %>'></asp:Button>&nbsp;
                                                    </td>
                                                    <td>
                                                        <asp:Button ID="btnCancel" Text="Cancel" runat="server" CausesValidation="False"
                                                            CommandName="Cancel"></asp:Button>
                                                    </td>
                                                </tr>
                                            </table>
                                        </FormTemplate>
                                    </EditFormSettings>
                                    <%--<CommandItemSettings ShowExportToWordButton="true" ShowExportToExcelButton="true" ShowExportToCsvButton="true" />--%>
                                </MasterTableView>
                                <FilterMenu EnableImageSprites="False">
                                </FilterMenu>
                            </telerik:RadGrid>
                        </telerik:RadAjaxPanel>
                    </div>
                    <div class="formRowDiv">
                        <telerik:RadButton ID="rbBack" CssClass="rowButton" runat="server" Text="Back" OnClick="rbBack_Clicked"
                            CausesValidation="false" />
                        <telerik:RadButton ID="rbSave" CssClass="rowButton" runat="server" Text="Save" OnClick="rbSave_Clicked" />
                    </div>
                </fieldset>
            </telerik:RadAjaxPanel>
            <telerik:RadAjaxLoadingPanel ID="RadAjaxLoadingPanel1" runat="server" Skin="Default">
            </telerik:RadAjaxLoadingPanel>
        </asp:Panel>
        <asp:Panel ID="pnlFooter" CssClass="pnlFooter" runat="server">
        </asp:Panel>
    </asp:Panel>
</asp:Content>






using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
using HolidayTracker.Data.Model;
using Telerik.Web.UI;
using HolidayTracker.Code;
using System.Collections;

namespace HolidayTracker.Administrator
{
    public partial class UserEditPanel : System.Web.UI.Page
    {

        private List<AnnualVacation> annualVacations = new List<AnnualVacation>();

        private Boolean newUser;
        private HtUser paramUser;
        private HtUser user;
        private HtUser User
        {
            get
            {
                user = HtUser.INIT_USER(this.Page, true);
                return user;
            }
        }

        protected void Page_Load(object sender, EventArgs e)
        {
            getParameters();
            if (!IsPostBack)
            {

                bindData();

                fillFieldsWithData();
                initFieldSettings();
            }
        }

        private void getParameters()
        {
            if (Page.Request["userId"] != null)
            {
                int userId = Constants.TryConvert(Page.Request["userId"], this.Page);
                this.paramUser = HtUser.GetById(userId);
            }
            else
            {
                this.paramUser = new HtUser();
            }
        }

        private void initFieldSettings()
        {
            if (!newUser)
            {
                //this.rcbSearch.Enabled = false;
            }
        }

        private void bindData()
        {
            this.rcbUserRoles.DataSource = this.UserRoleSqlSource;
            this.rcbUserRoles.DataBind();

            //fill viewstate with annual vacations if empty
            if (paramUser != null && paramUser.AnnualVacations.Any())
            {
                if (ViewState["AnnualVacationSource"] == null)
                {
                    annualVacations.AddRange(paramUser.AnnualVacations);
                    ViewState["AnnualVacationSource"] = annualVacations;
                }
            }
        }

        private void fillFieldsWithData()
        {
            if (paramUser != null)
            {
                this.rtbFirstName.Text = paramUser.FirstName;
                this.rtbLastName.Text = paramUser.LastName;
                this.rtbUserName.Text = paramUser.UserName;
                this.rcbSearch.Text = paramUser.Email;
                this.rtbAdAccount.Text = paramUser.AdAccount;
                this.rtbAdDomain.Text = paramUser.AdDomain;

                //UserRole
                IEnumerable<HtUserRole> userRoles = paramUser.HtUserRoles != null ? paramUser.HtUserRoles : null;
                if (userRoles != null && userRoles.Count() > 0)
                {
                    foreach (RadComboBoxItem rcbi in rcbUserRoles.Items)
                    {
                        rcbi.Checked = false;
                        foreach (HtUserRole ur in userRoles)
                        {
                            if (ur.RoleId.ToString() == rcbi.Value)
                            {
                                rcbi.Checked = true;
                                break;
                            }
                        }
                    }
                }
            }
        }

        protected void rcbSearch_ItemsRequested(object sender, RadComboBoxItemsRequestedEventArgs e)
        {
            if (e.Text != null && e.Text.Length > 2)
            {
                IEnumerable<HtUser> result = null;
                AdLookup lookup = new AdLookup();
                result = lookup.SearchAdUserByEmail(e.Text);//HtUser.SearchByEmail(e.Text);
                if (result != null && result.Count() > 0)
                {
                    foreach (HtUser user in result)
                    {
                        this.rcbSearch.Items.Add(new RadComboBoxItem(user.Email, user.UserId.ToString()));
                    }
                }
            }
        }

        protected void rcbSearch_IndexChanged(object sneder, RadComboBoxSelectedIndexChangedEventArgs e)
        {
            string email = e.Text;
            AdLookup lookup = new AdLookup();
            paramUser = lookup.GetAdUserByEmail(email);
            fillFieldsWithData();
        }

        private void saveData()
        {
            HolidayTrackerEntities ctx = HtEntityFactory.Context;
            HtUser userToSave = ctx.HtUsers.Where(u => u.UserId == paramUser.UserId).FirstOrDefault();
            if (userToSave == null)
            {
                userToSave = new HtUser();
                userToSave.IsNew = true;
            }
            userToSave.FirstName = this.rtbFirstName.Text;
            userToSave.LastName = this.rtbLastName.Text;
            userToSave.UserName = this.rtbUserName.Text;
            userToSave.Email = this.rcbSearch.Text;
            userToSave.AdAccount = this.rtbAdAccount.Text;
            userToSave.AdDomain = this.rtbAdDomain.Text;

            //UserRole
            foreach (RadComboBoxItem rcbi in rcbUserRoles.Items)
            {
                HtUserRole newUserRole = HtUserRole.GetById(int.Parse(rcbi.Value));

                if (rcbi.Checked)
                {
                    if (userToSave.HtUserRoles.Where(x => x.RoleId == newUserRole.RoleId).Count() == 0)
                    {
                        userToSave.HtUserRoles.Add(newUserRole);
                    }
                }
                else
                {
                    if (userToSave.HtUserRoles.Where(x => x.RoleId == newUserRole.RoleId).Count() > 0)
                    {
                        userToSave.HtUserRoles.Remove(newUserRole);
                    }
                }
            }

            if (userToSave.IsNew)
            {
                ctx.AddToHtUsers(userToSave);
            }

            if (((List<AnnualVacation>)ViewState["AnnualVacationSource"]) != null)
            {
                List<AnnualVacation> vacationToSave = (List<AnnualVacation>)ViewState["AnnualVacationSource"];
                IEnumerable<AnnualVacation> existing = paramUser.AnnualVacations;
                foreach (AnnualVacation toSave in vacationToSave)
                {
                    //if (toSave.IsNew) {
                    //    ctx.AddToAnnualVacations(toSave);
                    //}

                    //Zu löschende aus context löschen
                }
            }

            ctx.SaveChanges();
        }

        protected void rbBack_Clicked(object sender, EventArgs e)
        {
            Response.Redirect("~/Administrator/UserPanel.aspx");
        }

        protected void rbSave_Clicked(object sender, EventArgs e)
        {
            saveData();
            fillFieldsWithData();
        }

        protected void rgAnnualVacation_InsertCommand(object sender, GridCommandEventArgs e)
        {
            try
            {
                GridEditableItem item = e.Item as GridEditableItem;
                Hashtable values = new Hashtable();
                item.ExtractValues(values);

                AnnualVacation newAnnualVacation = new AnnualVacation();
                item.UpdateValues(newAnnualVacation);
                //newAnnualVacation.IsNew = true;

                ((List<AnnualVacation>)ViewState["AnnualVacationSource"]).Add(newAnnualVacation);
            }
            catch
            {
                //Hier fehlermeldung
            }

        }

        protected void rgAnnualVacation_DeleteCommand(object sender, GridCommandEventArgs e)
        {
            int annualVacationId = int.Parse((e.Item as GridDataItem).GetDataKeyValue("AnnualVacationId").ToString());
            ((List<AnnualVacation>)ViewState["AnnualVacationSource"]).
                Remove(((List<AnnualVacation>)ViewState["AnnualVacationSource"]).
                Where(av => av.AnnualVacationId == annualVacationId).FirstOrDefault());
        }

        protected void rgAnnualVacation_NeedDataSource(object sender, GridNeedDataSourceEventArgs e)
        {
            rgAnnualVacation.DataSource = ViewState["AnnualVacationSource"];
            if (rgAnnualVacation.DataSource == null)
            {
                rgAnnualVacation.DataSource = String.Empty;
            }
        }

        protected void rgAnnualVacation_UpdateCommand(object sender, GridCommandEventArgs e)
        {

        }
    }
}
4

2 回答 2

0

也许数据字段fromdate并且todate区分大小写。我看到您的 GridBoundColumns 使用FromDateand ToDate。你试过吗？

于 2012-10-23T13:54:30.097 回答
0

这很奇怪，尝试将一个空的 Page_DataBinding 事件处理程序添加到您的插入/编辑用户控件：

Private Sub Page_DataBinding(sender As Object, e As System.EventArgs) Handles Me.DataBinding

End Sub

它对我有用，我将所有内容都绑定到 OpenAccess。

于 2013-01-09T05:51:46.670 回答