检查复选框是否在asp.net的javascript中检查 [英] check checkbox is checked or not in javascript in asp.net

问题描述

大家好，我是asp.net的新手并试图学习它，



我创建了一个包含按钮和复选框的简单页面。 />


如何检查复选框是否在asp.net中的javascript中检查

Hi all, I am new to asp.net and trying to learn it,

I have created a simple page including a button and a checkboxes.

how to check checkbox is checked or not in javascript in asp.net

推荐答案

这是简单的javascript获取复选框状态的代码。

This is the simple javascript code to get the status of checkbox.

var chkStatus1 = document.getElementById("chkbutton1");
var chkStatus2 = document.getElementById("chkbutton2");

if (chkStatus1.checked) {
    // do your implementation for if part
}
else if(chkStatus2.checked) 
{
   // do your implementation for else if part for checkbox2
}
else if(chkStatus2.checked && chkStatus2.checked)
{
   // do your implementation when two chechbox status is checked.
}
else
{
   // do your implementation for else part.
}

你可以这样做，

Hi,
You can do it like this,

<script>
function checkcheckbox()
{
      //say for example you have checkbox with id="chk"
      var value = document.getElementById("<%= chk.ClientID %>").checked;
      // now value will have true or false. If true that means checkbox is checked and if value is false, that means checkbox is unchecked.
}
</script>

希望它可以帮到你。

Hope it helps you.

<script type="text/javascript">
        var hide1 = true;
        

        function hideColumn1(tableId, colIndex) {
            var table = document.getElementById(tableId);

            if (table != null) {
                for (i = 0; i < table.rows.length; i++) {
                    if (hide1)
                        table.rows[i].cells[colIndex - 1].style.display = 'none';
                    else
                        table.rows[i].cells[colIndex - 1].style.display = '';
                }
                hide1 = !hide1;
            }
    </script> 

<asp:repeater id="rpt" runat="server" >

       <headertemplate>
        <table  id="myTable" >
          <tr>
                <th >
                </th>
                  <th >
                </th>
                 .
                 .
                 .
        </tr>
           </table></headertemplate></asp:repeater>

<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 1)"  runat="server" checked="checked" />
<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 2)"  runat="server" checked="checked" />
<input id="Checkbox1" type="checkbox"  önclick="hideColumn1('myTable', 3)"  runat="server" checked="checked" />
.
.
.

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