I am using SlickGrid in my project and when i try to reorder columns , web page scrolls vertically and column headers become invisible .I found that in SlickGrid.js , in function setupColumnReorder, start function is called when user begins to drag column. I changed the start and stop functions in setupColumnReorder as below. This time , first time when user begins to drag column header , web page scrolls automatically. When the user drags second time it works as intended and no vertical scrolling occurs . How to prevent vertical scrolling in the first drag operation ?
function setupColumnReorder() {
$headers.filter(":ui-sortable").sortable("destroy");
$headers.sortable({
containment: "parent",
distance: 3,
axis: "x",
cursor: "default",
tolerance: "intersection",
helper: "clone",
placeholder: "slick-sortable-placeholder ui-state-default slick-header-column",
start: function (e, ui) {
/********************I added this part******************************************************/
$("body").css("overflow", "hidden");
$(this.parentNode).css("overflow", "hidden");
// window.scrollTo(0, 0) ;
/********************I added this part******************************************************/
ui.placeholder.width(ui.helper.outerWidth() - headerColumnWidthDiff);
$(ui.helper).addClass("slick-header-column-active");
},
beforeStop: function (e, ui) {
$(ui.helper).removeClass("slick-header-column-active");
},
stop: function (e) {
/********************I added this part******************************************************/
$("body").css("overflow", "auto");
$(this.parentNode).css("overflow", "auto");
/********************I added this part******************************************************/Edit : I am adding an example that vertical scrolling occurs .
<html>
<head>
<meta http-equiv="Content-Type" content="text/html; charset=utf-8">
<link rel="shortcut icon" type="image/ico" href="favicon.ico" />
<title>SlickGrid example 2: Formatters</title>
<link rel="stylesheet" href="../slick.grid.css" type="text/css"/>
<link rel="stylesheet" href="../css/smoothness/jquery-ui-1.11.3.custom.css" type="text/css"/>
<link rel="stylesheet" href="examples.css" type="text/css"/>
<style>
.cell-title {
font-weight: bold;
}
.cell-effort-driven {
text-align: center;
}
.green {
background-color: green;
}
.red {
background-color: red;
}
.orange {
background-color: orange;
}
</style>
<script src="../lib/firebugx.js"></script>
<script src="../lib/jquery-1.11.2.min.js"></script>
<script src="../lib/jquery-ui-1.11.3.min.js"></script>
<script src="../lib/jquery.event.drag-2.3.0.js"></script>
<script src="../slick.core.js"></script>
<script src="../slick.formatters.js"></script>
<script src="../slick.grid.js"></script>
<script>
// a standard formatter returns a string
function formatter(row, cell, value, columnDef, dataContext) {
return value;
}
// an extended formatter returns an object { text , removeClasses, addClasses }
// the classes are removed and then added during an update, or just added on cell creation
function statusFormatter(row, cell, value, columnDef, dataContext) {
var rtn = { text: value, removeClasses: 'red orange green' };
if (value !== null || value !== "") {
if (value < 33) {
rtn.addClasses = "red";
} else if (value < 66) {
rtn.addClasses = "orange";
} else {
rtn.addClasses = "green";
}
}
return rtn;
}
var grid;
var data = [];
var columns = [
{id: "title", name: "Title", field: "title", width: 120, cssClass: "cell-title", formatter: formatter},
{id: "duration", name: "Duration", field: "duration"},
{id: "%", name: "% Complete", field: "percentComplete", width: 80, resizable: false, formatter: Slick.Formatters.PercentCompleteBar},
{id: "status", name: "Status", field: "percentComplete", width: 50, resizable: false, formatter: statusFormatter},
{id: "start", name: "Start", field: "start", minWidth: 60},
{id: "finish", name: "Finish", field: "finish", minWidth: 60},
{id: "effort-driven", name: "Effort Driven", sortable: false, width: 80, minWidth: 20, maxWidth: 80, cssClass: "cell-effort-driven", field: "effortDriven", formatter: Slick.Formatters.Checkmark}
];
var options = {
editable: false,
enableAddRow: false,
enableCellNavigation: true
};
$(function () {
for (var i = 0; i < 5; i++) {
var d = (data[i] = {});
d["title"] = "<a href='#' tabindex='0'>Task</a> " + i;
d["duration"] = "5 days";
d["percentComplete"] = Math.min(100, Math.round(Math.random() * 110));
d["start"] = "01/01/2009";
d["finish"] = "01/05/2009";
d["effortDriven"] = (i % 5 == 0);
}
grid = new Slick.Grid("#myGrid", data, columns, options);
})
</script>
</head>
<body>
<table width="100%">
<tr>
<td valign="top" width="50%">
<div id="myGrid" style="position:absolute;top:300px;width:700px;height:500px;"></div>
</td>
<td valign="top">
<h2>Demonstrates:</h2>
<ul>
<li>width, minWidth, maxWidth, resizable, cssClass column attributes</li>
<li>custom column formatters</li>
<li>an extended formatter returning an object { text , removeClasses, addClasses } rather than a string, allowing adding and removing css classes from the cell</li>
</ul>
<h2>View Source:</h2>
<ul>
<li><A href="https://github.com/6pac/SlickGrid/blob/master/examples/example2-formatters.html" target="_sourcewindow"> View the source for this example on Github</a></li>
</ul>
</td>
</tr>
</table>
</body>
</html>Edit : The problem seems to be related to Mozilla Firefox. I tested the above code with Google Chrome and no vertical scrolling occurs .
