GridView三层嵌套加折叠

javatoyou

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今天在开发遇到一个问题，需求三层嵌套，于是根据孟子的两层嵌套加折叠的基础上，增加为三层嵌套！
下面为效果图：

protectedvoidPage_Load(objectsender,EventArgse)
2

{
3

if(!IsPostBack)
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{
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BindParent();
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}
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}
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privatevoidBindParent()
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{
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stringsql="select*fromPageLinkwherePID=0orderbyIDdesc";
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DataSetds=Iwoak.ExecSQL.ExecuteDataset(sql);
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gvParent.DataSource=ds.Tables[0].DefaultView;
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gvParent.DataBind();
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}
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protectedvoidgvParent_RowDataBound(objectsender,GridViewRowEventArgse)
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{
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if(e.Row.RowType==DataControlRowType.DataRow)
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{
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GridViewgvChild=(GridView)e.Row.FindControl("gvChild");
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LabellblID=(Label)e.Row.FindControl("lblID");
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stringsql="select*fromPageLinkwherePID="+lblID.Text;
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DataSetds=Iwoak.ExecSQL.ExecuteDataset(sql);
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gvChild.DataSource=ds.Tables[0].DefaultView;
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gvChild.RowDataBound+=newGridViewRowEventHandler(gvChild_RowDataBound);
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gvChild.DataBind();
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}
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}
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protectedvoidgvChild_RowDataBound(objectsender,GridViewRowEventArgse)
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{
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if(e.Row.RowType==DataControlRowType.DataRow)
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{
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GridViewgvlink=(GridView)e.Row.FindControl("gvlink");
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LabellblID=(Label)e.Row.FindControl("lbl_ID");
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stringsql="select*fromPageLinkwherePID="+lblID.Text;
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DataSetds=Iwoak.ExecSQL.ExecuteDataset(sql);
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gvlink.DataSource=ds.Tables[0].DefaultView;
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gvlink.DataBind();
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}
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}

<headrunat="server">
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<title>内嵌页链接--列表页面</title>
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<scripttype="text/javascript"language="javascript">
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functionShowHidden(sid,ev)
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{
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ev=ev||window.event;
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vartarget=ev.target||ev.srcElement;
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varoDiv=document.getElementById("div"+sid);
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oDiv.style.display=oDiv.style.display=="none"?"block":"none";
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target.title=oDiv.style.display=="none"?"显示":"隐藏";
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varimgid='img'+sid;
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document.getElementById(imgid).src=oDiv.style.display=="none"?"../CommonFiles/images/open.gif":"../CommonFiles/images/close1.gif";
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}
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</script>
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</head>
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<body>
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<formid="form1"runat="server">
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<asp:GridViewID="gvParent"runat="server"Width="100%"AutoGenerateColumns="False"
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EmptyDataText='<fontcolor="red"class="GridViewItem">没有找到相关数据！</font>'
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OnRowDataBound="gvParent_RowDataBound">
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<EmptyDataRowStyleHorizontalAlign="Center"/>
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<HeaderStyleForeColor="White"HorizontalAlign="Center"CssClass="GridViewHeader"/>
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<PagerSettingsVisible="False"/>
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<Columns>
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<asp:TemplateFieldHeaderText="名称">
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<itemtemplate>
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<Aid='<%#Eval("ID")%>'onclick="ShowHidden('<%#Eval("id")%>',event)"href="#">
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<IMGstyle="BORDER-RIGHT:0px;BORDER-TOP:0px;BORDER-LEFT:0px;BORDER-BOTTOM:0px"id='img<%#Eval("ID")%>'
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alt="展开/折叠"src="../CommonFiles/images/close1.gif"/><%#Eval("name")%></A>
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<asp:LabelID="lblID"runat="server"Text='<%#Eval("id")%>'style="display:none;"></asp:Label>
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<divid="div<%#Eval("ID")%>">
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<asp:GridViewid="gvChild"runat="server"OnRowDataBound="gvChild_RowDataBound"CssClass="inputAwoke"Width="95%"AutoGenerateColumns="False"ShowHeader="False"BorderWidth="0px"HorizontalAlign="Center">
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<Columns>
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<asp:TemplateField>
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<itemtemplate>
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<Aid='<%#Eval("ID")%>'onclick="ShowHidden('<%#Eval("id")%>',event)"href="#">
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<IMGstyle="BORDER-RIGHT:0px;BORDER-TOP:0px;BORDER-LEFT:0px;BORDER-BOTTOM:0px"id='img<%#Eval("ID")%>'
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alt="展开/折叠"src="../CommonFiles/images/close1.gif"/><%#Eval("name")%></A>
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<asp:LabelID="lbl_ID"runat="server"Text='<%#Eval("id")%>'style="display:none;"></asp:Label>
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<divid="div<%#Eval("ID")%>">
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<asp:GridViewid="gvlink"runat="server"CssClass="inputAwoke"Width="92%"AutoGenerateColumns="False"
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ShowHeader="False"BorderWidth="0px"HorizontalAlign="Center">
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<EmptyDataRowStyleHorizontalAlign="Center"/>
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<HeaderStyleForeColor="White"HorizontalAlign="Center"CssClass="GridViewHeader"/>
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<PagerSettingsVisible="False"/>
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<Columns>
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<asp:TemplateField>
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<itemtemplate>
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<ahref="<%#Eval("UrlPath")%>"target="_blank"><%#Eval("name")%></a>
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</itemtemplate>
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<ItemStyleCssClass="GridViewItem"/>
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</asp:TemplateField>
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</Columns>
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</asp:GridView>
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</div>
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</itemtemplate>
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<ItemStyleCssClass="GridViewItem"/>
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</asp:TemplateField>
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</Columns>
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</asp:GridView>
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</div>
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</itemtemplate>
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<ItemStyleCssClass="GridViewItem"/>
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</asp:TemplateField>
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</Columns>
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</asp:GridView>
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</form>
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</body>

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怎样在点击一个超链接时让滚动条不移动 | 让GridView中空记录时也显示表头

2008-10-16 17:10
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