Forms Data Controls :: RadioButtonList In GirdView - SelectedIndexChanged Did Not Get Triggered

Mar 15, 2011

I have a gridview and defined radiobuttonlist:

<asp:TemplateField>
<ItemTemplate>
<asp:RadioButtonList ID="rbAiredMissed" runat="server"
Enabled="true" OnSelectedIndexChanged="rbAiredMissed_SelectedIndexChanged">

[Code]....

When I select either radiobutton, the event handler did not get triggered.

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Oct 22, 2013

i read article "using javascript with asp.net radiobuttonlist control" and i found it useful.

[var RB1 = document.getElementById("<%=RadioButtonList1.ClientID%>");
var radio = RB1.getElementsByTagName("input");
if am setting radio[1].checked = 1; the item is checked. ]

step1: radio[0]=checked
           radio[1]=not checked
            radio[2]=not checked

step 2: by using javascript , am changing the selection

now 

           radio[0]=not checked
           radio[1]=checked 
          radio[2]=not checked

step 3: if am changing radio[0]=checked by clicking, it wont fire the selected index change that i wrote on code behind

but if am changing radio[2]=checked by clicking, it will fire the selected index change that i wrote on code behind

My requirement: i want to fire the selected index change in both cases. for that i need to change the selected index in step 2.

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If I have 10 radio button and the value of ten is same 1,0, 2

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<asp:ListItem Value="1">Yes/asp:ListItem>
<asp:ListItem Value="0">no</asp:ListItem>
<asp:ListItem Value="2">other</asp:ListItem>
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So instead of writing if condition for all can i write like this

radiobuttonlist rbl =(radiobuttonlist)sender;
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Aug 10, 2010

I have a table cell with a RadioButtonList. When each item is selected, the SelectedIndexChanged event is supposed to fire so the app can populate a related listbox. The problem is it stopped working. Now if I selected the first entry 'Division', the event never fires. I put a break-point on the event handler and it gets called for the other entries but not for Division. I'd believe it if some other code is interfering, I just don't know where to start looking.

[update] By not working, I mean if you selected Item #2, the update works; then if you select Item #1 it doesn't. If I change where the 'Division' item appears in the list, it still has the problem. Is there something in the page load cycle that could be aborting the event handling chain?

private TableCell foo()
{
hierarchyLevel = new RadioButtonList();
ListItem DivisionItem = new ListItem();
DivisionItem.Text = "Division";
DivisionItem.Value = "afe_dvsn";
hierarchyLevel.Items.Add(DivisionItem);
ListItem DistrictItem = new ListItem();
DistrictItem.Text = "District";
DistrictItem.Value = "afe_dist";
hierarchyLevel.Items.Add(DistrictItem);
ListItem AreaItem = new ListItem();
AreaItem.Text = "Area";
AreaItem.Value = "afe_supt";
hierarchyLevel.Items.Add(AreaItem);
ListItem ForemanItem = new ListItem();
ForemanItem.Text = "Foreman";
ForemanItem.Value = "afe_frmn";
hierarchyLevel.Items.Add(ForemanItem);
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AfeCodeItem.Text = "AFE Code";
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hierarchyLevel.Items.Add(AfeCodeItem);
ListItem PropertyItem = new ListItem();
PropertyItem.Text = "Property";
PropertyItem.Value = "prop_sub";
hierarchyLevel.Items.Add(PropertyItem);
TableCell cellforHierarchyLevel = new TableCell();
cellforHierarchyLevel.ID = "hierarchyLevel";
cellforHierarchyLevel.Controls.Add(hierarchyLevel);
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return cellforHierarchyLevel;
}

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I have a radiobutton list that changes the contents of a dropdownlist when the selected radiobuttonlist index is changed using the SelectedIndexChanged event. Both controls are within the same updatepanel and both have autopostback set to true.

For some reason when I change the dropdownlist and cause a postback, the radiobuttonlist change event fires and repopulates the dropdownlist which effectively cancels the selection made in the dropdown.

I know something simple must be causing this behaviour but I cannot think what and my debugging efforts are not shedding any light thus far. I have tried putting a breakpoint on every procedure in my form and the first event that fires is the radiobuttonlist SelectedIndexChanged event so nothing in my server side code seems to be doing this which suggests it is something in the markup but I can't think what.

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I have a RadioButtonList with some fixed element and a default selected. If I uncheck the selection with javascript, on postback the SelectedIndexChanged event is not fired.

I would expect that the SelectedIndexChanged is called because the index is changed to -1.

this is the Asp.Net code

<asp:RadioButtonList ClientIDMode="Static" ID="RadioButtonList1" runat="server"
onselectedindexchanged="RadioButtonList1_SelectedIndexChanged">
<asp:ListItem Value="1" Selected="True"></asp:ListItem>
<asp:ListItem Value="2"></asp:ListItem>
</asp:RadioButtonList>

and the jquery code

$('#RadioButtonList1 :radio:visible').attr('checked', false);

As far as I know, the stage of data collection from the submit of the form is handled by IPostBackDataHandler.LoadPostData method.

I derived a class from RadioButtonList to verify when LoadPostData is called and I noticed that when non of the radio button is selected the method is not called and the same for SelectedIndexChanged event.

it seems that if the key of RadioButtonList is not present in the Page.Request.Form.Keys array, the LoadPostData is not called.

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for more information:

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[Code]....

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I have two radiobuttons in radiobuttonlist and based on selection, i am enabling and disabling the text box.
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[Code]....

if (!Page.IsPostBack)
{
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txtExpirationDays.Text = expDays;
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}
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txtExpirationDate.Text = String.Empty;
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}
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[Code]....

[Code]....

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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]....

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{
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[code]...

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