GridView提示层以及ShowModalDialog使用方式备忘

首先,需要说明的是GridView的提示层的制作方式,下面是已经做好的效果:

上面的就是这个效果,以下介绍中,我分几步来介绍其制作方式:

首先,就是信息提示层的定义,这个的灵活性很大,大家可以自定义为自己喜欢的样式,我的代码如下:

代码
<!--这个是html代码--> 
<div id="div1" style="display: none; 300px; position: absolute">
            <table border="0" style="border:2px solid green" cellpadding="0">
                <tr>
                    <td id="td_N" align="center" height="20px" style="color:#004080;background:ECF5FF">
                    <strong>提示信息</strong>
                    </td>
                </tr>
                 <tr>
                    <td id="td1" height="25px" style="color: black;background:white;">
                    </td>
                </tr>
            </table>
</div>

<!--下面的则是js的显示隐藏方法-->
 function Show(content) {
    document.getElementById("td1").innerText = "" + content;
    x = event.clientX + document.body.scrollLeft;
    y = event.clientY + document.body.scrollTop + 30;
    div1.style.display = "block";
    div1.style.left = x;
    div1.style.top = y;
}
function Hide() {
    div1.style.display = "none";
}

然后就是需要绑定GridView,需要注意的是,刚才弹出层部分的字段是截断的,如果想让其内容显示在浮动层中,我们需要在RowDataBind事件中处理.

这里是前台的GridView代码:

 <asp:GridView ID="GridViewSSTJ" runat="server" AllowPaging="True" AutoGenerateColumns="False"
                            DataKeyNames="纳税人内部码" OnPageIndexChanging="GridViewSSTJ_PageIndexChanging"
                            Height="95%" OnRowDataBound="GridViewSSTJ_RowDataBound" 
                            AllowSorting="True" CssClass="GVtable" 
                            onrowcommand="GridViewSSTJ_RowCommand">
                            <RowStyle CssClass="tr1" />
                            <Columns>
                                <asp:BoundField HeaderText="编号">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                 <asp:BoundField DataField="序号" HeaderText="序号" Visible="false">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="纳税人内部码" HeaderText="纳税人内部码" Visible="false">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="处罚大类" HeaderText="处罚大类">
                                    <ItemStyle HorizontalAlign="left" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="处罚小类" HeaderText="处罚小类">
                                    <ItemStyle HorizontalAlign="left" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="纳税人编码" HeaderText="纳税人编码">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="纳税人识别码" HeaderText="纳税人识别码">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:BoundField DataField="企业名称" HeaderText="企业名称">
                                    <ItemStyle HorizontalAlign="left" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                </asp:BoundField>
                                
                                <asp:TemplateField HeaderText="处罚结果">
                                    <ItemTemplate>
                                        <asp:Label ID="Label3" runat="server" Text='<%# Eval("处罚结果").ToString().Length>15?Eval("处罚结果").ToString().Substring(0,15)+"...":Eval("处罚结果") %>'></asp:Label>
                                    </ItemTemplate>
                                    <HeaderStyle HorizontalAlign="Center" />
                                    <ItemStyle HorizontalAlign="Left" />
                                </asp:TemplateField>
                                
                                <asp:TemplateField HeaderText="处罚日期">
                                    <ItemTemplate>
                                        <asp:Label ID="Label2" runat="server" Text='<%# Bind("处罚日期") %>'></asp:Label>
                                    </ItemTemplate>
                                    <HeaderStyle HorizontalAlign="Center" />
                                    <ItemStyle HorizontalAlign="Center" />
                                </asp:TemplateField>
                                <asp:TemplateField HeaderText="处罚金额">
                                    <ItemTemplate>
                                        <asp:Label ID="Label1" runat="server" Text='<%# String.Format("{0:N}",Eval("处罚金额")) %>'></asp:Label>
                                    </ItemTemplate>
                                    <HeaderStyle HorizontalAlign="Center" />
                                    <ItemStyle HorizontalAlign="right" />
                                </asp:TemplateField>
                                
                                <asp:TemplateField HeaderText="操作">
                                    <ItemStyle HorizontalAlign="Center" />
                                    <HeaderStyle HorizontalAlign="Center" />
                                    <ItemTemplate>
                                        <a href="#" onclick="showEditDialog(<%#Eval("序号") %>)">修改</a>
                                        <asp:LinkButton ID="lbtnDel" CommandArgument='<%#Eval("序号") %>' CommandName="DelThis" OnClientClick="return confirm('确定删除吗?');return false;" runat="server">删除</asp:LinkButton> 
                                    </ItemTemplate>
                                </asp:TemplateField>
                            </Columns>
                            <AlternatingRowStyle CssClass="tr2" />
                            <PagerTemplate>
                                <table align="center" border="0" cellpadding="0" cellspacing="2" class="infolistpage"
                                    width="100%">
                                    <tr>
                                        <td class="page" style=" 40%;">
                                            <span class="fleft">共有 <font>
                                                <asp:Label ID="LabelSumCount" runat="server"></asp:Label></font> 条记录 每页显示 <font>
                                                    <asp:Label ID="LabelPageCount" runat="server" Text='<%# ((GridView)Container.Parent.Parent).PageSize  %>'></asp:Label></font>
                                                条 共 <font>
                                                    <asp:Label ID="lblPageCount" runat="server" Text='<%# ((GridView)Container.Parent.Parent).PageCount  %>'></asp:Label></font>
                                                页</span>
                                        </td>
                                        <td class="page" style=" 60%;">
                                            <span class="fright">
                                                <asp:LinkButton ID="btnFirst" runat="server" CausesValidation="False" CommandArgument="First"
                                                    CommandName="Page" Text="首  页"></asp:LinkButton>
                                                <asp:LinkButton ID="btnPrev" runat="server" CausesValidation="False" CommandArgument="Prev"
                                                    CommandName="Page" Text="上一页"></asp:LinkButton>
                                                <asp:LinkButton ID="btnNext" runat="server" CausesValidation="False" CommandArgument="Next"
                                                    CommandName="Page" Text="下一页"></asp:LinkButton>
                                                <asp:LinkButton ID="btnLast" runat="server" CausesValidation="False" CommandArgument="Last"
                                                    CommandName="Page" Text="尾  页"></asp:LinkButton>
                                                <asp:TextBox ID="txtNewPageIndex" runat="server" Text='<%# ((GridView)Container.Parent.Parent).PageIndex + 1  %>'
                                                    Width="20px"></asp:TextBox>
                                                <asp:LinkButton ID="btnGo" runat="server" CausesValidation="False" CommandArgument="-1"
                                                    CommandName="Page" Text="前往" CssClass="Go"></asp:LinkButton>
                                            </span>
                                        </td>
                                    </tr>
                                </table>
                            </PagerTemplate>
                        </asp:GridView>

然后就是后台的绑定方法:

protected void GridViewSSTJ_RowDataBound(object sender, GridViewRowEventArgs e)
    {
        if (e.Row.RowType == DataControlRowType.DataRow)
        {
            //编号
            int number = e.Row.DataItemIndex + 1;
            e.Row.Cells[0].Text = number.ToString();


            DropDownList ddl = (DropDownList)e.Row.FindControl("ddlResult");
            if (ddl != null)
            {
                if (ddl.Items.FindByValue(DataBinder.Eval(e.Row.DataItem, "cfjg").ToString()) != null)
                {
                    ddl.Items.FindByValue(DataBinder.Eval(e.Row.DataItem, "cfjg").ToString()).Selected = true;
                }
            }

            Label l2 = (Label)e.Row.FindControl("Label2");
            object res = DataBinder.Eval(e.Row.DataItem, "处罚日期");
            if (res != DBNull.Value)
            {
                try
                {
                    l2.Text = DateTime.Parse(res.ToString()).ToString("yyyy-MM-dd");
                }
                catch
                {
                    l2.Text = "";
                }
            }

            e.Row.Cells[8].Attributes.Add("onmouseover", "Show('"+DataBinder.Eval(e.Row.DataItem, "处罚结果").ToString()+"');");
            e.Row.Cells[8].Attributes.Add("onmouseout", "Hide();");
        }
    }

这样就可以实现浮动提示层的效果了.

然后我们需要说明的是ShowModalDialog的使用方式,在我制作过程中,有以下几个问题,现一一列举:

1、ShowModalDialog如何在子窗体关闭，刷新父窗体，具体代码如下：

首先，在父窗体中，我们看下打开子窗体的代码：

 function showAddDialog() {
            var str=window.showModalDialog("SWXZZFQK_Add.aspx?type=add&nsrnbm=<%=pbNsrnbm %>&tmp="+new Date()+"","税务行政执法","dialogWidth=650px;dialogHeight=375px");
            if(str=="1")
            {
                window.location.reload(true);
            }
        }

        function showEditDialog(xh) {
            var str = window.showModalDialog("SWXZZFQK_Add.aspx?type=edit&xh="+xh+"&nsrnbm=<%=pbNsrnbm %>&tmp="+new Date()+"", "税务行政执法", "dialogWidth=650px;dialogHeight=375px");
            if (str == "1") {
                window.location.reload(true);
            }
        }

其中  str是接收子窗体处理完毕的返回值的，当返回值为1的时候，父窗体就执行刷新事件。

但是如何在子窗体中返回值呢？具体代码如下：

由于我们在弹出的子窗体中，做的是新增和更新操作，所以关闭子窗体然后刷新父窗体的代码基本一致，我这里就以添加操作为例子：

 private void Add()
    {
        if (!String.IsNullOrEmpty(ddlDL.SelectedValue) && !String.IsNullOrEmpty(ddlXL.SelectedValue) && !String.IsNullOrEmpty(qssj.Value))
        {
            string dldm = ddlDL.SelectedValue;  //大类代码
            string dlmc = ddlDL.SelectedItem.Text; //大类名称
            string xldm = ddlXL.SelectedValue;  //小类代码
            string xlmc = ddlXL.SelectedItem.Text; //小类名称
            string nsrnbm = txtnsrnbm.Text; //纳税人内部码
            string nsrbm = txtnsrbm.Text;//纳税人编码
            string nsrsbm = txtnsrsbm.Text;  //纳税人识别码
            string nsrmc = txtnsrmc.Text;  //纳税人名称
            string cfjg = txtresult.Text;  //处罚结果
            string cfrq = qssj.Value;  //处罚时间
            string tjny = DateTime.Parse(qssj.Value).ToString("yyyyMM");  //统计年月
            double je = 0.00;  //处罚金额
            int xh = GetXH(nsrnbm, tjny) + 1;  //序号
            if (!String.IsNullOrEmpty(txtJE.Value))
            {
                je = double.Parse(txtJE.Value);
            }

            string sql = @"insert into db_zgfz.t_kw_xzzfxx_04 
                        values('" + dldm + "','" + dlmc + "','" + xldm + "','" + xlmc + "'," + nsrnbm + "," + xh + ",'" + nsrbm + "','" + nsrsbm + "','" + nsrmc + "','" + cfjg + "',to_date('" + cfrq + "','yyyy-mm-dd')," + tjny + "," + je + ")";
            this.m_CommonBLL.ExecuteQuery(sql);
            ClientScript.RegisterClientScriptBlock(Page.GetType(), "jsAlertSuccess", "<script>alert('添加成功！');</script>");
            ClientScript.RegisterClientScriptBlock(Page.GetType(), "jsRefreshParent", "<script>window.parent.close();window.returnValue=1;</script>");
        }
    }

代码中被我标记为红色的即是刷新父窗体的代码。但是，执行添加时候，却并不能刷新，为什么呢？原来，还需要在html顶部加上一句"<base target="_self" /  >“才行,这样就可以实现刷新了.

2、在编辑操作时候，弹出的子窗体中，不论怎么操作，当前子窗体页面都会弹出一个刷新重试的提示，关闭以后，页面并没有刷新。

这也是我在制作过程中，遇到的问题，关键原因在于，我在gridview的操作列中，编辑按钮使用的是LinkButton，所以在点击的时候会出现回发，子窗体的表单提交，会弹出那个刷新重试的对话框也不足为怪。

如何解决呢，只需要如下：

将LinkButon换成非服务器端的标记或者是控件即可，我这里换成了超链接：<a href="#" onclick="showEditDialog(<%#Eval("序号") %>)">修改</a> 

这样替换以后,果真不再出现刷新重试的对话框,结果出现了第三个问题.

3、子窗体初始打开的时候，在编辑模式下，加载的数据一切正常，但是当进行完更新操作，父页面刷新后，再点击”修改“按钮，发现弹出的子页面中，加载的数据竟然还是以前的数据，原因是什么呢？

其实造成这种原因的结果，就是GridView在运行的时候就绑定了”修改“超链接的OnClick事件，然后被页面缓存，解决这个问题的方法就是在传过去的参数后面加上唯一标识就行了，一般用当前事件来防止这种缓存状况发生，具体操作如下：

链接如下：

 

function showEditDialog(xh) {
            var str = window.showModalDialog("SWXZZFQK_Add.aspx?type=edit&xh="+xh+"&nsrnbm=<%=pbNsrnbm %>&tmp="+new Date()+"", "税务行政执法", "dialogWidth=650px;dialogHeight=375px");
            if (str == "1") {
                window.location.reload(true);
            }
        }

str后面多加了一个&tmp="+new Date()+"的唯一标识来防止页面缓存.

上面就是制作过程中遇到的小问题,希望对你有用.谢谢!

追求道,要先精于术.

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原文地址：https://www.cnblogs.com/scy251147/p/1936208.html