Which event to write the following code?

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Hi,
I want to enable a button depending on the selected item from the radio button list;I have written the following code in Selected_Item_Changed event of the radbtnlist.But it is not working,what can be the problem?

RadioButtonList1_SelectedIndexChanged(object sender, EventArgs e)
{
if (RadioButtonList1.SelectedItem.Value == "I Agree")
{
btnSubmit.Visible = true;
}
else
{
btnSubmit.Visible = false;
}
}

Posted 18-May-10 18:40pm

avishekrc

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3 solutions

Solution 1

You might want to look at the CheckChanged event.

Posted 18-May-10 18:44pm

Abhinav S

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avishekrc 19-May-10 1:20am

nope,not working..can u pls write the above code in CheckChanged event?I have TextChanged event,I tried to write within that,but did not work..

Solution 3

Ok like u said that u want to make the button enable on selecting a particular item from the radiobutton list right then hers an example for you
In the below code i have again made the button disable on form load

private void Form2_Load(object sender, EventArgs e)
        {
            button1.Enabled = false;
        }

now all you had to do is use the SelectedIndexChanged event of your radio button in my code i have used a checkbox list both are same and will work fine the only difference is that in checkbox u can select multiple item but in radio button you cannot do that

private void checkedListBox1_SelectedIndexChanged(object sender, EventArgs e)
        {
//now here if the first item in the checklistbox is selected then the button will be enabled
            if (checkedListBox1.SelectedIndex == 0)
            {
                button1.Enabled = true;

            }
              else
            {
                button1.Enabled = false;
            }
            
        }

Now all u have to do is use this logic to enable that button on the selected index of your radio button, here 0 indicates the first item in my checkbox list...
Do rate my answer once you find it useful
Thanks & Regards
Radix :rose:

Posted 19-May-10 3:53am

radix3

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radix3 · Accepted Answer · 2010-05-18T19:19:00

Hello,
Disable the button on form load like this

private void Form1_Load(object sender, EventArgs e)
        {
            button1.Enabled = false;
        }

and then use the checked_changed event of radio button to do your trick

private void radioButton1_CheckedChanged(object sender, EventArgs e)
        {
            if (radioButton1.Checked == true)
            {
                button1.Enabled = true;
            }
        }

Do rate my answer once you find it useful
Thanks & Regards
Radix :rose: