how do I check to see if an item in the  RadioGroup is checked?
lazarus / 31-LCL

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userx-bw · 2014-01-19 23:38

how do I check to see if an item in the  RadioGroup is checked?

in the examples I have read they all say like this
Code: [Select]if radio1.Checked then
with the group not a single radio button but the TRadioGroup
these do not work.
Code: [Select]RadioGroup.checked
RadioGroup.Items.Checked
RedioGroup.ItemsIndex.Checked
RadioGroup.Items[RadioGroup.ItemsIndex].checked


reguardles if it is caps or not, Checked, or checked I get an error
Code: [Select]mhsetroot.pas(433,36) Error: identifier idents no member
"Checked"


so How do I check to see if a selection is checked or selected within
a TRadioGroup?

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taazz · 2014-01-19 23:42

RadioGroup1.ItemIndex <> -1;

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engkin · 2014-01-19 23:52

Please disregard this post. I just realized that I confused
TCheckGroup with your question regarding TRadioGroup.    Thanks to
Taazz

Quotehow do I check to see if an item in the  RadioGroup is checked?

Code: [Select]if CheckGroup1.Checked[TheIndexOfTheItemYouWant] then
  //do something

If you want to know how many items are checked:
Code: [Select]  i, NumOfCheckedItems: integer;
begin
  NumOfCheckedItems := 0;
  for i := 0 to CheckGroup1.Items.Count - 1 do
  begin
    if CheckGroup1.Checked[i] then
      NumOfCheckedItems += 1;
  end;

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taazz · 2014-01-20 00:11

Radiogroup only allows one item select at a time.

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userx-bw · 2014-01-20 00:34

Quote from: taazz on January 20, 2014, 01:11:27 amRadiogroup only
allows one item select at a time.

I know .. I just need to reset the value to -1 for that radiogroup and
all other radioGroups that are not being used, as in my testing to
check which radio button is selected then in selecting a different
radiogroup the result for the last radiogroup stayed to the same value
of whatever was checked last. therefore I need to reset that value of
all the radiogroup's not being used to -1 so that I can check to be
use that none of them are selected then move on with the code .. for a
lack of a better way of putting it ... thanks !