I have a property
public bool AutoRenew
{
get;
set;
}
And in the page:
<input type="checkbox" checked='<%# Eval("AutoRenew") %>' />
but it is always checked, even if the value of the property is false
.
I tried the following variations:
<input type="checkbox" checked='<%# Convert.ToBoolean(Eval("AutoRenew")) %>' />
<input type="checkbox" checked='<%# Convert.ToBoolean(Eval("AutoRenew")) == true %>' />
<input type="checkbox" checked='<%# (Boolean)Eval("AutoRenew") %>' />
but nothing works, it keeps being checked. What should the expression look like?
EDIT: Here is the problematic part in the page:
...
<asp:ListView ID="MyListView" runat="server">
<LayoutTemplate>
<table class="ms-listviewtable" style="background-color: White;">
<tr class="ms-viewheadertr ms-vhltr">
<th class="ms-vh-icon" scope="col">
<input type="checkbox" />
</th>
<th class="ms-vh2">
<div class="ms-vh-div"><a>Training Item</a></div>
</th>
<th class="ms-vh2">
<div class="ms-vh-div"><a>Training Task Type</a></div>
</th>
<th class="ms-vh2">
<div class="ms-vh-div"><a>Due Date</a></div>
</th>
<th class="ms-vh2">
<div class="ms-vh-div"><a>Auto-Renew</a></div>
</th>
<th class="ms-vh2">
<div class="ms-vh-div"><a>Training Reason</a></div>
</th>
</tr>
<tr id="itemplaceholder" runat="server"></tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr class="ms-itmhover">
<td class="ms-vb-itmcbx ms-vb-firstCell">
<input type="checkbox" class="s4-itm-cbx" />
</td>
<td class="ms-vb-title">
<div class="ms-vb itx"><a><%# Eval("Title")%></a></div>
</td>
<td class="ms-vb2">
<asp:DropDownList ID="TaskTypeDropDownList" runat="server">
</asp:DropDownList>
</td>
<td class="ms-vb2"><%# Eval("DueDate")%></td>
<td class="ms-vb2" style="text-align: center;">
<input type="checkbox" checked='<%# Convert.ToBoolean(Eval("AutoRenew")) %>' />
</td>
<td class="ms-vb2"><%# Eval("TrainingReason")%></td>
</tr>
</ItemTemplate>
...
You are using plain HTML checkbox
to bind data to plain HTML checkbox you must use checked="checked"
If you use ASP.NET Checkbox control then your original code will work smoothly.
There is a difference between plain HTML controls & ASP.NET controls when binding data.
//for asp.net checkbox
<asp:CheckBox ID="IdCheckBox" runat="server" Checked="<%# Convert.ToBoolean(Eval("AutoRenew")) %>" />
//for plain html checkbox
<input type="checkbox" <%# Convert.ToBoolean(Eval("AutoRenew")) ? "checked" : "" %> />
Desired output HTML should get you on the way:
<input type="checkbox" checked="checked" />
<input type="checkbox" />
This means that, to NOT check the checkbox, you should not mention the checked
attribute in the output at all, not even with a value of false.
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