Checkbox wont display text when its checked

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C#

var chk = new CheckBox();
chk.CheckedChanged += chkBox_CheckedChanged;

private void chkBox_CheckedChanged(object sender, EventArgs e)
        {
            if (sender is CheckBox)
            {
                CheckBox checkbox = sender as CheckBox;
                if (checkbox.Checked)
                {
                    checkbox.Text = "Checked";
                }
                else
                {
                    checkbox.Text = "UnChecked";
                }
            }
        }

Posted 8-Apr-13 22:02pm

Kurac1

Updated 9-Apr-13 1:37am

Kenneth Haugland

v3

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Comments

Shine Ashraf 9-Apr-13 4:07am

where you added (event ?) this code ?

Kurac1 9-Apr-13 4:13am

On button upload i display a hyperlink and a checkbox in a repater when checkbox is selcted on item i want want to display a delete button

Shine Ashraf 9-Apr-13 4:41am

on above code, you have initialized a check box, and it's default checked state is false.
How you handling the check box's checked change event ?

Kurac1 9-Apr-13 4:50am

se above code

Shine Ashraf 9-Apr-13 4:53am

but you are not changing the button visibility.

Kurac1 9-Apr-13 5:01am

i am trying to make it work first i have true with visible and also like the code above nothing is happening

PrashantSonewane 9-Apr-13 6:17am

check if autopostback is true.
chk.AutoPostBack = true;

Kurac1 9-Apr-13 6:33am

when i set it to true every thing disappears from the repeater?

PrashantSonewane 9-Apr-13 6:39am

OK. I assume that you have upload and delete button in page and checkbox in repeater control in page. Whenever you upload anything, repeater gets new row. Now if you select few/one checkbox in repeater then you want to make Delete button visible. If this is correct, then write simple javascript function to turn delete button visible on or off. and call that function on onClick event of checkbox.

Kurac1 9-Apr-13 6:46am

Yes it correct.
I dont now javascript... :(

Kurac1 9-Apr-13 7:03am

i found this code , <script type="text/javascript">
function show() {
document.getElementById('ButtonDeleteAttachments').style.visibility = "visible";
}
</script>

if its correct how do i call this function?

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PrashantSonewane · Accepted Answer · 2013-04-09T01:18:00

First attach the javascript function to your checkbox
chk.Attributes.Add("onclick", "enableDeleteButton();");

This will call function enableDeleteButton everytime you chick on checkbox. Also below is the function you can use:

C#

function enableDeleteButton() {
            debugger;


            var repeater = document.getElementById('repeater');  // This is div to limit //the controls to repeater checkbox.
            var delbutton = document.getElementById('<%=btnDelete.ClientID%>');
// make button visible false first 
            delbutton.style.display = 'none';
            var inputs = repeater.getElementsByTagName('input');
            for (var i = 0; i < inputs.length; i++) {
                if (inputs[i].type == "checkbox" && inputs[i].checked == true)
                    delbutton.style.display = '';
            }
        }

And in page load make delete button visible false by adding below code:

btnDelete.Style.Add("display", "none");

[Do not use btn.Visible = False as it will not find by javascript]

Let me know if need any help.