I have been engaged in .net development for a year and a half, and encountered a very difficult problem (how to cancel t

yoto999

I have a radiobuttonlist
<asp: RadioButtonList ID = "rblist" Runat = "server" RepeatDirection = "Horizontal">
<asp: ListItem Value = "1"> Translator </ asp: ListItem>
<asp: ListItem Value = "2"> Done </ asp: ListItem>
</ asp: RadioButtonList>

My question is: once an item is selected, and then click to cancel it (making both items unselected), can I do it with JAVASCRIPT? Hope to enlighten me. . . . . .

ppaannyyjj

I don't use radiobuttonlist very much, but I think javascript can be achieved

var obj = document.getElementById ("rblist");
obj.option [0] .checked = false;

Didn't try, probably this is it

cqgang

I think it's impossible ~

sunray

If it is a static page
===============================================
Reply to:ppaannyyjj() Reputation: 100 2017-01-04 21:19:43 Score: 0
I don't use radiobuttonlist very much, but I think javascript can be achieved

var obj = document.getElementById ("rblist");
obj.option [0] .checked = false;

Didn't try, probably this is it
==================================================
If it is an aspx page, the server control should have the value of ViewState. JavaScript can change the value of the html control, but the value of the view cannot be changed. JavaScript seems to have been canceled, but it is actually an illusion.

windelf

ID_Button.Attributes ["onclick"] = "javascript: var delflag; var a = document.getElementsByName (\" ID_Class\"); if (a [1] .checked) {alert ('Selected other charged items');} if (a [0] .checked) {alert ('Selected basic charge item');} return false; ";

papaibobo

<asp: RadioButtonList ID = "RadioButtonList1" runat = "server">
            <asp: ListItem onclick = "set (this);"> a </ asp: ListItem>
            <asp: ListItem onclick = "set (this);"> b </ asp: ListItem>
        </ asp: RadioButtonList> </ div>

    <script>
        var id = "";
        function set (c)
        {
            
            if (c.id == id)
            {
                c.checked = false;
                id = "";
            }
            else
                id = c.id;
        }
    </ script>

final37

cqgang
 
 
   I think it's impossible ~
  
 
________________________________________________________
what do you mean?

yoto999

papaibobomethod, I tried it, it seems not work. . .

402374565

I also want to know if it works, up!

sunray

I tried to cancel it, but it did n’t make much sense
<form id = "Form1" method = "post" runat = "server">
<asp: RadioButtonList id = "radioBtnList" style = "Z-INDEX: 101; LEFT: 232px; POSITION: absolute; TOP: 136px"
runat = "server">
<asp: ListItem Value = "111"> 111 </ asp: ListItem>
<asp: ListItem Value = "2222"> 2222 </ asp: ListItem>
<asp: ListItem Value = "3333"> 3333 </ asp: ListItem>
</ asp: RadioButtonList>
<asp: Button id = "btnCancel" style = "Z-INDEX: 102; LEFT: 408px; POSITION: absolute; TOP: 168px"
runat = "server" Text = "Cancel"> </ asp: Button>
</ form>
private void btnCancel_Click (object sender, System.EventArgs e)
{
bool bFlag = false;
this.radioBtnList.SelectedItem.Selected = bFlag;
}