Question

我有updatePanel，其中我正在显示表格

<asp:UpdatePanel ID="DynCreated" EnableViewState="true" UpdateMode="Conditional"
            runat="server">
            <ContentTemplate >
                <div style="display: none" enableviewstate="true"> 
                    <asp:TextBox ID="flgClear" EnableViewState="true" Text="" runat="server"></asp:TextBox>
                    <asp:TextBox ID="flgAdd" EnableViewState="true" Text="" runat="server"></asp:TextBox>
                    <asp:TextBox ID="txtList" EnableViewState="true" Text="|" runat="server"></asp:TextBox>
                    <asp:TextBox ID="txtDelete" EnableViewState="true" Text="|" runat="server"></asp:TextBox></div>
         <asp:Table ID="tblGrid" CssClass="grid" CellPadding="0" CellSpacing="0"
                    Width="100%" EnableViewState="true" runat="server">   <asp:TableRow TableSection="TableHeader" ID="trHeader" CssClass="crid-header Datagrid-header"
                        runat="server" EnableViewState="true">
                        <asp:TableHeaderCell ID="hdrSequence" runat="server">
                            <asp:Label ID="lblSequence" Text="#" CssClass="cel" runat="server" />
                        </asp:TableHeaderCell>
                        <asp:TableHeaderCell ID="hdrHouseBill" runat="server">
                            <asp:Label ID="lblHouseBill" Text="HouseBill" CssClass="ceva-form-label" runat="server" />
                        </asp:TableHeaderCell>
                        <asp:TableHeaderCell ID="hdrFileNumber" runat="server">
                            <asp:Label ID="lblFileNumber" Text="FileNumbere" CssClass="ceva-form-label" runat="server" />
                        </asp:TableHeaderCell>

                    </asp:TableRow>
                </asp:Table>
                <br />
                <br />
                <div class="text-center">
                    <asp:Button ID="btnAddNewHB" CssClass="tn btn-dialog" Text="Add New Status"

                    OnClientClick="return ShowNewLeg();" runat="server" />

                    <asp:Button  Text="Validate" CssClass="cen btn-dialog" runat="server" ID="btnValidate"   />


                    <asp:Button ID="btnSave" CssClass="tn-dialog" Text="Save" OnClientClick="return Save()" Visible="false"
                        runat="server" />
                    <asp:Button ID="btnCancel" CssClass=" btn-dialog" OnClientClick="window.returnValue = 1; window.close(); return false;"
                        Text="Cancel" CausesValidation="false" runat="server" />
                    <asp:Button ID="btnClear" CssClass=tn btn-dialog" Text="Clear All" OnClientClick="return ClearTable();"
                        runat="server" />
                    <input type="hidden" id="hndtimeformat" runat="server" name="hndtimeformat" value="0"
                        style="display: none" />
                </div>
            </ContentTemplate>
        </asp:UpdatePanel>

从后端我将新行添加到tblGrid

     For j As Integer = tblGrid.Rows.Count To maxRow
      Dim newRow As TableRow= New TableRow()
     newRow.Cells.Add(CreateNewLabel(tblGrid.Rows.Count, "SEQ", 
     tblGrid.Rows.Count, tblGrid.Rows.Count, "40px", bColor))
     newRow.Cells.Add(CreateNewText(tblGrid.Rows.Count, "HB", "", 
      tblGrid.Rows.Count, "10px", "", 3, "none", False))
     newRow.Cells.Add(CreateNewLabel(tblGrid.Rows.Count, "FN", "", tblGrid.Rows.Count, "60px", ""))
   newRow.Cells.Add(CreateNewDD(tblGrid.Rows.Count, "ST", statusup, tblGrid.Rows.Count, "10px", "", 3, "none", True))
 newRow.Cells.Add(CreateNewDT(tblGrid.Rows.Count, "datetime", "", tblGrid.Rows.Count, ""))
   newRow.Cells.Add(CreateNewAC(tblGrid.Rows.Count, "LC", "", "", tblGrid.Rows.Count, "0.0", AutoCompletor.DisplayFieldType.Code, "", "", False))
 newRow.Cells.Add(CreateNewText(tblGrid.Rows.Count, "SG", "", tblGrid.Rows.Count, "10px", "", 0, "none"))
 newRow.Cells.Add(CreateNewCB(tblGrid.Rows.Count, "CB", "", tblGrid.Rows.Count, "5px", bColor))
  newRow.Cells.Add(CreateNewText(tblGrid.Rows.Count, "Note", "", tblGrid.Rows.Count, "10px", "", 0, "none"))
 newRow.Cells.Add(CreateNewLabel(tblGrid.Rows.Count, "Er", "", tblGrid.Rows.Count, "40px", bColor))
newRow.Cells.Add(CreateNewImage(tblGrid.Rows.Count, "btn", tblGrid.Rows.Count))  tblGrid.Rows.Add(newRow)   Next j

我在回发之前得到的数据是我在回复之前得到的数据，之后回复它没有tabGrid中存在的任何数据。

我是否需要使用ViewState或Session？有什么方法可以获得数据吗？请指教!!

Answer 1

将您的数据放入视图状态并在回发后获取它们

Answer 2

如果您只需要在此页面内导航期间使用此数据，则可以使用ViewState变量。如果你想让整个会话的保持活动数据更好地使用Session变量，那么如果你进入其他页面，你也不会丢失这些行。

Asp：如果你想管理数据，Table不是正确的元素，我建议试试这个解决方案（只是一个例子）：

# Get all <li> inside <ul>[1]
 CarBrands = tree.xpath('//*[@id="content"]/ul[1]/li')

# Iterate all <li> Nodes
for node in CarBrands:
    # Findall <ul><li>...</li> ...
    li_nodes = node.findall('./ul/li')

    # Iterate all <li>
    for li in li_nodes:
        # Find the <a> inside <li>
        a = li.find('./a')

        # Clear "special text nodes"
        a.tail = ''
        print('a:{}'.format(etree.tostring(a)))

这对于运行时数据绑定：创建数据表

a:b'<a href="/Biler/AC/Ace/">Ace</a>'  
a:b'<a href="/Biler/AC/Cobra/">Cobra</a>'

在回发中绑定：

    <asp:GridView runat="server" ID="tblGrid" CssClass="grid"  CellPadding="0" CellSpacing="0">
                <Columns >
                   <asp:TemplateField >
                        <HeaderTemplate >
                             <asp:Label ID="lblSequence" Text="#" CssClass="cel" runat="server" />
                    </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="lblSequenceItem" Text="<%# Eval("col1")  %>" runat="server" />
                        </ItemTemplate> 
                    </asp:TemplateField>
                    <asp:TemplateField>
                        <HeaderTemplate>
                             <asp:Label ID="lblHouseBill" Text="HouseBill" CssClass="ceva-form-label" runat="server" />
                   </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="lblHouseBillItem" Text="<%# Eval("col2")  %>" runat="server" />
                        </ItemTemplate>
                    </asp:TemplateField>
                    <asp:TemplateField>
                        <HeaderTemplate>
                             <asp:Label ID="lblFileNumber" Text="FileNumbere" CssClass="ceva-form-label" runat="server" />
                   </HeaderTemplate>
                        <ItemTemplate>
                            <asp:Label ID="lblFileNumberItem" Text="<%# Eval("col3")  %>" runat="server" />
                        </ItemTemplate>
                    </asp:TemplateField>
                </Columns>
            </asp:GridView>

回帖后没有asp表中的数据

2 个答案: