Web Forms :: Checkboxlist Shows Items Double?
Aug 4, 2010
I have a detailsview with a checkboxlist
[Code]....
As you can see, it is populated by a method. This method checks whether the item is checked or not (when updating the data shown in the detailsview)
[Code]....
Now when I click the update button, the button that triggers the itemupdating event, I delete all links in the database connected to that record, loop through all my checkboxlists and insert the ones that are checked:
[Code]....
The problem however is in this line:
[Code]....
For some reason the items are counted double and I cannot find the reason for that. Dividing it by two does solve it but it would be nicer to understand why it does that.(And if there would be a better way to loop through all the controls to find all checkboxes.
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[Code]....
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[Code]....
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[Code]....
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[Code]....
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[Code]....
using System;
using System.Collections.Generic;
using System.Linq;
using System.Data.Linq;
using System.Web;
using System.Web.UI;
using System.Web.UI.WebControls;
namespace find.Admin
{
public partial
class WebForm1 : System.Web.UI.Page
{
private
class servicetimeofday
{
public int servicetimeofdayid {
get; set; }
public int serviceid {
get; set; }
public int timeofdayid {
get; set; }
}
protected void Page_Load(object sender,
EventArgs e
{
List<servicetimeofday> servicetimesofday =
new
List<servicetimeofday>
{
new servicetimeofday() { servicetimeofdayid = 1, serviceid = 1, timeofdayid = 1 },
new servicetimeofday() { servicetimeofdayid = 2, serviceid = 1, timeofdayid = 2 },
new servicetimeofday() { servicetimeofdayid = 3, serviceid = 2, timeofdayid = 1 },
new servicetimeofday() { servicetimeofdayid = 4, serviceid = 2, timeofdayid = 3 }
};
GridView2.DataSource = servicetimesofday;
GridView2.DataBind();
var itemstocheck = from
servicetimeofday in servicetimesofday
where servicetimeofday.serviceid == 2
select ne
servicetimeofday.timeofdayid
};
GridView3.DataSource = itemstocheck;
GridView3.DataBind();
foreach (var timeofdayid
in itemstocheck)
{
foreach (ListItem i
in CheckBoxList2.Items)
{
if (i.Value == timeofdayid.ToString())
{ i.Selected =
true; }
}
}
}
}
}
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[Code]....
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[Code]....
DetailsView on front-end:
[Code]....
CodeBehind:
[Code]....
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page_load
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[Code]....
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[Code]....
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[Code].....
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I have created a CheckBoxList and a CheckBoxListFor helpers that I am using as follows:
[Code]....
[Code]....
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