how to retrieve multiple selected value from asp:checkbox .net c#

Question

Does anyone know how can I retrieved the multiple selected value from asp:checkbox .net c#?

Example: I'm new in .net c#, I have the following code, but I have no idea how can I retrieved the multiple selected value from .net c#

<tr>   
    <th class="graytext r">Add Test:</th>
    <td>
        <asp:CheckBoxList ID="Test" runat="server" DataSourceID="dsTest" CssClass=""
            DataValueField="employeeid" DataTextField="fullname" 
            AppendDataBoundItems="false" >
            <asp:ListItem></asp:ListItem>
        </asp:CheckBoxList>  
        <asp:SqlDataSource ID="dsTest" runat="server" 
            ConnectionString="<%$ ConnectionStrings:SmartStaffConnectionString %>"
            SelectCommand="app_dsTest_select" SelectCommandType="StoredProcedure">
        </asp:SqlDataSource>
    </td>
</tr>

Are you looking for selected items or checked ones ??

Akram Shahda
– Akram Shahda

2011-06-27 07:09:01 +00:00
Commented Jun 27, 2011 at 7:09 — Akram Shahda
– Akram Shahda, Commented Jun 27, 2011 at 7:09
@Akram Shahda This is the same for the CheckBoxList

VMAtm
– VMAtm

2011-06-28 05:33:04 +00:00
Commented Jun 28, 2011 at 5:33 — VMAtm
– VMAtm, Commented Jun 28, 2011 at 5:33

Akram Shahda · Accepted Answer · 2011-06-27 07:20:21Z

6

Use the following:

for (int i=0; i<checkboxlist1.Items.Count; i++)
{
    if (checkboxlist1.Items[i].Selected)
    {
        Message.Text += checkboxlist1.Items[i].Text + "<br />";
    }
}

Refer to CheckBoxList Class.

edited Jun 27, 2011 at 7:20

answered Jun 27, 2011 at 7:05

Akram Shahda

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1 Comment

eloycm Over a year ago

Let's go functional: var rs = checkboxlist1.Items.Cast<ListItem>().Where(i => i.Selected).Select(t=>t.Text).ToList(); and then you can concatenate stackoverflow.com/questions/559415/…

Bazzz · Accepted Answer · 2011-06-27 07:50:56Z

4

Propably the simplest approach is this:

foreach (ListItem item in myCheckboxList.Items)
{
  if (item.Selected)
  {
    // do something with this item
  }
}

answered Jun 27, 2011 at 7:50

Bazzz

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Comments

D. Dubya · Accepted Answer · 2015-01-20 17:40:11Z

2

This is an old thread, but using .NET 4.5 (not sure if previous versions work), you can use LINQ to do this:

IEnumerable<ListItem> selectedItems = myCheckboxList.Items.Cast<ListItem>().Where(x => x.Selected);

answered Jan 20, 2015 at 17:40

D. Dubya

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Comments

Pranay Rana · Accepted Answer · 2011-06-27 07:04:03Z

1

try listitem.Selected property as i did below

protected void CheckBoxList1_SelectedIndexChanged(object sender, EventArgs e)
{
    Label1.Text = string.Empty;

    foreach (ListItem listitem in CheckBoxList1.Items)
    {
        if (listitem.Selected)
            Label1.Text += listitem.Text + "<br />";
    }
}

answered Jun 27, 2011 at 7:04

Pranay Rana

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Comments

Bibhu · Accepted Answer · 2011-06-28 02:27:16Z

1

foreach (ListItem item in myCheckboxList.Items)
{
  if (item.Selected)
  {
    //Your code goes here
  }
}

edited Jun 28, 2011 at 2:27

answered Jun 27, 2011 at 7:16

Bibhu

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3 Comments

Bazzz Over a year ago

CheckboxList doesnt have a property SelectedItems, there is a property named SelectedItem (singular) but that just returns the first selected item.

Bibhu Over a year ago

@Bazz - But ListBox has so also CheckListBox. Check out this link, msdn.microsoft.com/en-us/library/…

Bazzz Over a year ago

sorry to disappoint you but your reference is for winforms, OP is using asp.net msdn.microsoft.com/en-us/library/…

Akram Shahda · Accepted Answer · 2011-06-28 05:30:22Z

0

You must iterate through the Items.

Refer to CheckBoxList Class.

To determine which items are checked, iterate through the collection and test the Selected property of each item in the list.

edited Jun 28, 2011 at 5:30

Akram Shahda

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answered Jun 27, 2011 at 7:04

Justin M. Keyes

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