Question

我有一个带有各种按钮的表单，当单击该表单时会显示一个模式弹出窗口。弹出窗口正确显示在屏幕上，但是任何字段中都没有数据。

单步执行代码时，我可以看到数据已分配给相关控件（文本框或标签），但是什么也没有显示。在我的项目中，我还有其他几种形式，它们也有弹出窗口，这些窗口应该可以正常工作。我什至用这些表格中的代码来尝试解决问题，但没有成功。

这是用户单击按钮以显示弹出窗口的代码

<div class="tab-pane fade" id="tabDiary">
    <div class="col-md-12">
        <asp:UpdatePanel ID="updatePanelDiary" runat="server">
            <ContentTemplate>
                <%--<asp:Timer ID="timerDiary" runat="server" Interval="15000" OnTick="timerDiary_Tick"></asp:Timer>--%>
                <asp:Repeater ID="rptDiary" runat="server" OnItemDataBound="rptDiary_ItemDataBound">
                    <HeaderTemplate>
                        <div class="col-md-12 text-right">
                            <div class="form-group">
                                <asp:Button ID="btnDiary" runat="server" Text="New Diary Item" OnClick="btnDiary_Click" CssClass="btn btn-warning" Visible="true" />
                                <div class="clearfix"></div>
                            </div>
                        </div>
                        <table class="table table-striped table-bordered">
                            <thead>
                                <tr class="tabHeaderRow">
                                    <td>Date</td>
                                    <td>Entered By</td>
                                    <td>Comments</td>
                                    <td>Action Date</td>
                                    <td></td>
                                </tr>
                            </thead>
                    </HeaderTemplate>
                    <ItemTemplate>
                        <tr>
                            <td><%# DataBinder.Eval(Container.DataItem,"DateEntered") %></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"AddedBy") %></td>
                            <td><%# DataBinder.Eval(Container.DataItem,"Comments") %></td>
                            <td><asp:Label ID="lblActionDate" runat="server" Text='<%# DataBinder.Eval(Container.DataItem,"ActionDate") %>'></asp:Label></td>
                            <td><asp:Button ID="btnEditDiaryEntry" runat="server" CssClass="btn btn-primary btn-sm" Text="Edit" CommandName="EditDiaryEntry"
                                 OnCommand="btnEditDiaryEntry_Command" CommandArgument='<%#Eval("DiaryID") %>' /></td>
                        </tr>
                    </ItemTemplate>
                    <FooterTemplate>
                        </table>
                    </FooterTemplate>
                </asp:Repeater>
            </ContentTemplate>
        </asp:UpdatePanel>
    </div>
    <div class="clearfix"></div>
</div>

这是背后的代码：

    protected void btnEditDiaryEntry_Command(object sender, CommandEventArgs e)
    {
        Int32 DiaryID = Convert.ToInt32(e.CommandArgument);
        SqlCommand cmd = new SqlCommand("sp_GetDiaryEntry", cnn);
        cmd.CommandType = CommandType.StoredProcedure;
        cmd.Parameters.AddWithValue("@DiaryID", DiaryID);
        cnn.Open();

        SqlDataReader dr = cmd.ExecuteReader();
        while (dr.Read())
        {
            txtEditComment.Text = dr["Comments"].ToString();
            txtEditScheduleDiary.Text = dr["ActionDate"].ToString();
        }

        dr.Close();
        cnn.Close();
        ScriptManager.RegisterStartupScript(_parentControl, _parentControl.GetType(), "Modal", " DisplayEditDiaryModal()", true);
        Master.GetMenuData();
        txtEditScheduleDiary.Text = "hello david";

    }

这是显示弹出窗口的代码

<script type="text/javascript">
    function DisplayEditDiaryModal() {
        $('#<%=pnlDiaryEdit.ClientID%>').modal('show');
    }
</script>

这是模态代码：

<asp:Panel ID="pnlDiaryEdit" runat="server" class="modal fade" role="dialog">
<div class="modal-dialog modal-md">
    <div class="modal-content">
        <div class="modal-body">
            <div class="row">
                <div class="col-md-12">
                    <div class="well well-md">
                        <fieldset>
                            <legend class="text-center header"><asp:Label ID="Label31" Text="Edit Diary Entry" runat="server" Visible="true"></asp:Label></legend>
                            <asp:HiddenField ID="hidDiaryID" runat="server" />

                                <div class="form-group">
                                    <div class="col-md-3">
                                        <asp:Label ID="lblEditComment" runat="server" Text="Comment"></asp:Label>
                                    </div>
                                    <div class="col-md-9">
                                        <asp:TextBox ID="txtEditComment" runat="server" CssClass="form-control"  TextMode="MultiLine" Rows="10" Wrap="true" ></asp:TextBox>
                                    </div>
                                    <div class="clearfix"></div>
                                </div>


                                <div class="form-group">
                                    <div class="col-md-3">
                                        <asp:Label ID="lblEditSchedule" runat="server" Text="Schedule Event"></asp:Label>
                                    </div>
                                    <div class="col-md-6">
                                        <asp:TextBox ID="txtEditScheduleDiary" runat="server" CssClass="form-control" Visible="true" ></asp:TextBox>
                                    </div>
                                    <div class="clearfix"></div>
                                </div>

                            <div class="form-group">
                                <div class="col-md-12 text-right">
                                    <asp:Button ID="btnCancelEdit" runat="server" Text="Cancel" CssClass="btn btn-primary" OnClientClick="HideEditDiaryModal(); return false;" />
                                    <asp:Button ID="btnEditDiary" runat="server" Text="Edit" CssClass="btn btn-success" OnClick="btnEditDiary_Click" />
                                </div>
                            </div>

                        </fieldset>
                    </div>                       
                </div>
            </div>
        </div>
    </div>
</div>

正如我已经说过的那样，此代码可在项目中的其他表单上运行。任何帮助将不胜感激。

Answer 1

您是否尝试过添加updatePanelDiary.Update（）？

protected void btnEditDiaryEntry_Command(object sender, CommandEventArgs e)
{
    Int32 DiaryID = Convert.ToInt32(e.CommandArgument);
    SqlCommand cmd = new SqlCommand("sp_GetDiaryEntry", cnn);
    cmd.CommandType = CommandType.StoredProcedure;
    cmd.Parameters.AddWithValue("@DiaryID", DiaryID);
    cnn.Open();

    SqlDataReader dr = cmd.ExecuteReader();
    while (dr.Read())
    {
        txtEditComment.Text = dr["Comments"].ToString();
        txtEditScheduleDiary.Text = dr["ActionDate"].ToString();
    }

    dr.Close();
    cnn.Close();
    ScriptManager.RegisterStartupScript(_parentControl, _parentControl.GetType(), "Modal", " DisplayEditDiaryModal()", true);
    Master.GetMenuData();
    txtEditScheduleDiary.Text = "hello david";

    updatePanelDiary.Update();
}

并将UpdateMode =“ Conditional”添加到您的更新面板中

 <asp:UpdatePanel ID="updatePanelDiary" runat="server" UpdateMode="Conditional">

引导模态丢失数据显示

1 个答案: