asp.net list of grouped (nested) checkboxes
I want to create List of Grouped Checkboxes as follows:
[]Group1
[] Item1
[] Item2
[]Group2
[]Item1
[]Item2
[]Item3
Here Group# and item# are checkboxes. Does anyone know ho开发者_Python百科w to do this in asp.net. I am getting data from DataSet. One limitation is that I am not allowed to use third party tool/controls or jQuery.
Many thanks,
Use repeater (or nested repeaters) to generate layout and java-script for beahavior. For example, lets say your dataset has two tables - Groups and Items and there foreign key relation among tables named "FK_Groups_Items". Then you can repeater such as
<ol>
<asp:Repeater ID="Groups" runat="server">
<itemtemplate>
<ul>
<asp:CheckBox runat="server" ID="Group" Text="'<%# Eval("Name") %>'" Value='<%# Eval("Value") %>' onclick="OnGroupClick">
<p class="nested">
<asp:CheckBoxList runat="server" ID="Items" DataSource='<%# ((DataRowView)Container.DataItem).CreateChildView("FK_Groups_Items") %>'> DataValueField="Value" DataTextField="Name" />
</p>
</ul>
</itemtemplate>
</asp:Repeater>
</ol>
and following js function
function OnGroupClick(group) {
for(item in group.getElementsByTagName('input')) {
item.checked = group.checked;
}
}
Disclaimer: untested code just to give an hint/idea of approach
精彩评论