ข้ามไปที่แถวใน RadGrid

ลอง เลื่อนไปที่รายการที่เลือก

ฉันเลือกรายการในโค้ดด้านหลังในเหตุการณ์ databound

   Set one of the items in the control as selected.

Provide a handler for the client-side GridCreated event.

    In the event handler, locate the selected row using the GridTableView object's get_selectedItems() method.

    Use the RadGrid object's GridDataDiv property to access the DOM element for the scrollable region of the grid.

    Use the DOM element for the row to check if it is visible in the scrollable region. If it is not, set the scrollTop property of the scrollable region to scroll the grid so that the selected row is showing. 

ตัวอย่างต่อไปนี้สาธิตเทคนิคนี้: CopyJavaScript

<script type="text/javascript">
function GridCreated(sender, eventArgs) {
    //gets the main table scrollArea HTLM element  
    var scrollArea = document.getElementById(sender.get_element().id + "_GridData");
    var row = sender.get_masterTableView().get_selectedItems()[0];

    //if the position of the selected row is below the viewable grid area  
    if (row) {
        if ((row.get_element().offsetTop - scrollArea.scrollTop) + row.get_element().offsetHeight + 20 > scrollArea.offsetHeight) {
            //scroll down to selected row  
            scrollArea.scrollTop = scrollArea.scrollTop + ((row.get_element().offsetTop - scrollArea.scrollTop) +
            row.get_element().offsetHeight - scrollArea.offsetHeight) + row.get_element().offsetHeight;
        }
        //if the position of the the selected row is above the viewable grid area  
        else if ((row.get_element().offsetTop - scrollArea.scrollTop) < 0) {
            //scroll the selected row to the top  
            scrollArea.scrollTop = row.get_element().offsetTop;
        }
    }
}

Notice : The function does not work on page postbacks. you should triger directly from javascript (i notice that the ongridcreated event of the grid is not fired on the Telerik example). So a better way is to handle the scrolling with JQuery like this :

1) สร้างฟังก์ชันสำหรับกริดเฉพาะ

2) ที่โค้ด telerik ให้แทนที่ผู้ส่งด้วย var sender = $find("‹%= RadGrid1.ClientID%>");

3) $(window).load(function () { thefunctiontoscrollthegrid();});