jQWidgets jqxTreeGrid scrollOffset()用法及代码示例

jQWidgets 是一个 JavaScript 框架，用于为 PC 和移动设备制作基于 Web 的应用程序。它是一个非常强大、优化、独立于平台且得到广泛支持的框架。 jqxTreeGrid 用于表示 tree-like 结构中的数据。该小部件对于显示多列分层数据、数据分页、排序和过滤、数据编辑、列大小调整、固定列、条件格式、聚合和行选择非常有用。这些小部件还可以读取和显示来自任何类型数据源(例如 XML、JSON、Array、CSV 或 TSV)的数据。

scrollOffset()方法用于滚动到指定jqxTreeGrid的指定位置。

用法:

$("#treeGrid").jqxTreeGrid('scrollOffset', top, left);

参数：此方法接受两个参数，如下所示：

top:这是指定的垂直滚动条值，滚动到该值为止。
left: 这是指定的水平滚动条值，滚动将达到该值

返回值：此方法返回所使用的顶部和左侧参数的对象，即object.left和object.top。

链接文件：下载jQWidgets从给定的链接。在 HTML 文件中，找到下载文件夹中的脚本文件。

<link rel=”stylesheet” href=”jqwidgets/styles/jqx.base.css” type=”text/css” />
<script type=”text/javascript” src=”scripts/jquery.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxcore.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdata.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxbuttons.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxscrollbar.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxlistbox.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdropdownlist.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxdatatable.js”></script>
<script type=”text/javascript” src=”jqwidgets/jqxtreegrid.js”></script>

例子：下面的例子说明了jQWidgets jqxTreeGridscrollOffset()方法。在下面的示例中，水平滚动执行到其值 30。

HTML


<!DOCTYPE html> 
<html lang="en"> 
  <head> 
    <link rel="stylesheet" href= 
      "jqwidgets/styles/jqx.base.css" type="text/css"/> 
    <script type="text/javascript" 
      src="scripts/jquery.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxcore.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxdata.js">'</script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxbuttons.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxscrollbar.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxlistbox.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxdropdownlist.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxdatatable.js"></script> 
    <script type="text/javascript" 
      src="jqwidgets/jqxtreegrid.js"></script> 
  </head> 
  
  <body> 
    <center> 
      <h1 style="color: green;"> 
        GeeksforGeeks 
      </h1> 
      <h3> 
        jQWidgets jqxTreeGrid scrollOffset() Method 
      </h3> 
      <div id="jqxTreeGrid" style="margin: 25px;"></div> 
      <input type="button" style="margin: 20px;" 
             id="button_for_scrollOffset"
             value="Invoke the scrollOffset() Method" /> 
      <script type="text/javascript"> 
        $(document).ready(function () { 
          var A = [ 
            { 
              ID: 1, 
              Employee_Name: "Amit", 
              Company: "GeeksforGeeks", 
              Designation: "Content Writer", 
              expanded: true, 
              A1: [ 
                { 
                  ID: 2, 
                  Employee_Name: "Sumit", 
                  Company: "Amazon", 
                  Designation: "Software Engineer", 
                }, 
                { 
                  ID: 3, 
                  Employee_Name: "Vivek", 
                  Company: "Apple", 
                  Designation: "Product Manager", 
                  expanded: true, 
                  A1: [ 
                    { 
                      ID: 4, 
                      Employee_Name: "Soni", 
                      Company: "Flipkart", 
                      Designation: "HR", 
                    }, 
                  ], 
                }, 
              ], 
            }, 
          ]; 
  
          var Data_Source = { 
            dataFields: [ 
              { 
                name: "ID", 
              }, 
              { 
                name: "Employee_Name", 
              }, 
              { 
                name: "Company", 
              }, 
              { 
                name: "Designation", 
              }, 
              { 
                name: "A1", 
                type: "array", 
              }, 
              { 
                name: "expanded", 
              }, 
            ], 
            hierarchy: { 
              root: "A1", 
            }, 
            id: "ID", 
            localData: A, 
          }; 
  
          var Data = new $.jqx.dataAdapter(Data_Source); 
  
          $("#jqxTreeGrid").jqxTreeGrid({ 
            width: 400, 
            source: Data, 
            sortable: true, 
            ready: function () { 
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "1"); 
            }, 
            ready: function () { 
              $("#jqxTreeGrid").jqxTreeGrid("expandRow", "3"); 
            }, 
            columns: [ 
              { 
                text: "Employee_Name", 
                align: "center", 
                dataField: "Employee_Name", 
                width: 140, 
              }, 
              { 
                text: "Company", 
                align: "center", 
                dataField: "Company", 
                width: 150, 
              }, 
              { 
                text: "Designation", 
                align: "center", 
                dataField: "Designation", 
                width: 150, 
              }, 
            ], 
          }); 
          $("#button_for_scrollOffset").jqxButton({ 
            width: 350, 
            height: 35, 
          }); 
          $("#button_for_scrollOffset").click(function () { 
            var Scroll_Value = $("#jqxTreeGrid") 
              .jqxTreeGrid("scrollOffset", 25, 30); 
          }); 
        }); 
      </script> 
    </center> 
  </body> 
</html>

输出：

参考： https://www.jqwidgets.com/jquery-widgets-documentation/documentation/jqxtreegrid/jquery-treegrid-api.htm?search=

相关用法

注：本文由纯净天空筛选整理自Kanchan_Ray大神的英文原创作品 jQWidgets jqxTreeGrid scrollOffset() Method。非经特殊声明，原始代码版权归原作者所有，本译文未经允许或授权，请勿转载或复制。