JavaScript implements GriwView single column selection (self-written code)_javascript skills

There are a series of Checkboxes in the GridView, which need to be selected or unselected. I started looking for it online, but the reference code will select all Checkboxes in the GridView, and what I want is to select all in a single column. As shown in the picture:

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I wrote the JavaScript code myself and posted it for your reference.

Copy code The code is as follows:

function chkAll(CheckAll) {
var items = document.getElementsByTagName("input");
for (var i = 0; i < items.length; i ) {
if (items[i].type == "checkbox"){
for (var j = 2; j < 10; j ) {
var id = "ctl00_ContentPlaceHolder1_GridView1_ctl0" j "_CheckBox1";
if (items[i].id == id) {
items[ i].checked = CheckAll.checked;
}
}
}
}
}

Among them, j in line 5 and j in line 6 id is used to determine the Checkbox of the same column. The specific range of j and id may be different. You can use alert(items[i].id); to traverse the entire items to view the corresponding id.
The corresponding code for the front desk is as follows:

Copy code The code is as follows:

Audit