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Scrolling in ASP.NET MVC Grid control

The scrollbar will be displayed in the grid when content exceeds the element Width or Height. The vertical and horizontal scrollbars will be displayed based on the following criteria:

  • The vertical scrollbar appears when the total height of rows present in the grid exceeds its element height.
  • The horizontal scrollbar appears when the sum of columns width exceeds the grid element width.
  • The Height and Width are used to set the grid height and width, respectively.

The default value for Height and Width is auto.

Set width and height

To specify the Width and Height of the scroller in the pixel, set the pixel value to a number.

razor
width-height.cs
@Html.EJS().Grid("Grid").DataSource((IEnumerable<object>)ViewBag.datasource).Height("400").Width("auto").Columns(col =>
{
  col.Field("OrderID").HeaderText("Order ID").Width("120").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("CustomerID").HeaderText("Customer Name").Width("150").Add();
  col.Field("OrderDate").HeaderText("Order Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("Freight").HeaderText("Freight").Width("120").Format("C2").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("ShippedDate").HeaderText("Shipped Date").Width("140").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("ShipName").HeaderText("Ship Name").Width("150").Add();
  col.Field("ShipAddress").HeaderText("Ship Address").Width("170").Add();
  col.Field("ShipCity").HeaderText("Ship City").Width("170").Add();
  col.Field("ShipCountry").HeaderText("Ship Country").Width("150").Add();

}).Render()
public IActionResult Index()
 {
   var orders = OrderDetails.GetAllRecords();
   ViewBag.datasource = orders;            
   return View();
 }

Responsive with parent container

Specify the Width and Height as 100% to make the grid element fill its parent container. Setting the Height to 100% requires the grid parent element to have explicit height.

razor
responsive-parent.cs
@Html.EJS().Grid("Grid").DataSource((IEnumerable<object>)ViewBag.datasource).Height("100%").Width("auto").Columns(col =>
{
  col.Field("OrderID").HeaderText("Order ID").Width("120").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("CustomerID").HeaderText("Customer Name").Width("150").Add();
  col.Field("OrderDate").HeaderText("Order Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("Freight").HeaderText("Freight").Width("120").Format("C2").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("ShippedDate").HeaderText("Shipped Date").Width("140").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
  col.Field("ShipName").HeaderText("Ship Name").Width("150").Add();
  col.Field("ShipAddress").HeaderText("Ship Address").Width("170").Add();
  col.Field("ShipCity").HeaderText("Ship City").Width("170").Add();
  col.Field("ShipCountry").HeaderText("Ship Country").Width("150").Add();

}).Render()
public IActionResult Index()
 {
   var orders = OrderDetails.GetAllRecords();
   ViewBag.datasource = orders;            
   return View();
 }

Scroll to selected row

You can scroll the grid content to the selected row position by using the RowSelected event.

razor
scroll-selected-row.cs
@Html.EJS().NumericTextBox("numeric").Placeholder("Enter index to select a row").Change("onChange").Width("200").Render()

@Html.EJS().Grid("Grid").DataSource((IEnumerable<object>)ViewBag.datasource).Height("400").Width("auto").Columns(col =>
{
   col.Field("OrderID").HeaderText("Order ID").Width("120").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("CustomerID").HeaderText("Customer Name").Width("150").Add();
   col.Field("OrderDate").HeaderText("Order Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("Freight").HeaderText("Freight").Width("120").Format("C2").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("ShippedDate").HeaderText("Shipped Date").Width("140").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("ShipName").HeaderText("Ship Name").Width("150").Add();
   col.Field("ShipAddress").HeaderText("Ship Address").Width("170").Add();
   col.Field("ShipCity").HeaderText("Ship City").Width("170").Add();
   col.Field("ShipCountry").HeaderText("Ship Country").Width("150").Add();

}).RowSelected("rowSelected").Render()

<script>
    function onChange(args) {
        var gridObj = document.getElementById("Grid").ej2_instances[0];
        gridObj.selectRow(parseInt(this.getText(), 10));
    }

    function rowSelected(args) {
        var rowHeight = this.getRows()[this.getSelectedRowIndexes()[0]].scrollHeight;
        this.getContent().children[0].scrollTop = rowHeight * this.getSelectedRowIndexes()[0];
    }

</script>
public IActionResult Index()
 {
   var orders = OrderDetails.GetAllRecords();
   ViewBag.datasource = orders;            
   return View();
 }

Frozen rows and columns

Frozen rows and columns provides an option to make rows and columns always visible in the top and left side of the grid while scrolling.

In this demo, the FrozenColumns is set as 2 and the FrozenRows is set as 3. Hence, the left two columns and top three rows are frozen.

razor
freeze-row-column.cs
@Html.EJS().Grid("FrozenGrid").DataSource((IEnumerable<object>)ViewBag.datasource).AllowSelection(false).AllowResizing().Height("410").FrozenRows(2).FrozenColumns(1).Columns(col =>
{
   col.Field("OrderID").HeaderText("Order ID").Width("120").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("Freight").HeaderText("Freight").Width("120").Format("C2").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("OrderDate").HeaderText("Order Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("CustomerID").HeaderText("Customer Name").Width("200").Add();
   col.Field("ShipName").HeaderText("Ship Name").Width("150").Add();
   col.Field("ShippedDate").HeaderText("Shipped Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("ShipCity").HeaderText("Ship City").Width("200").Add();
   col.Field("ShipAddress").HeaderText("Ship Address").Width("150").Add();
   col.Field("ShipCountry").HeaderText("Ship Country").Width("150").Add();

}).Render()
public IActionResult Index()
 {
    ViewBag.datasource = OrdersDetails.GetAllRecords();            
    return View();
 }

Freeze particular columns

To freeze particular column in the grid, the IsFrozen property can be used.

In this demo, the columns with field name OrderID and CustomerID is frozen using the IsFrozen property.

razor
freeze-column.cs
@Html.EJS().Grid("FrozenGrid").DataSource((IEnumerable<object>)ViewBag.datasource).AllowSelection(false).AllowResizing().Height("410").Columns(col =>
{
   col.Field("OrderID").HeaderText("Order ID").Width("120").IsFrozen(true).TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("Freight").HeaderText("Freight").Width("120").Format("C2").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("OrderDate").HeaderText("Order Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("CustomerID").HeaderText("Customer Name").IsFrozen(true).Width("200").Add();
   col.Field("ShipName").HeaderText("Ship Name").Width("150").Add();
   col.Field("ShippedDate").HeaderText("Shipped Date").Width("130").Format("yMd").TextAlign(Syncfusion.EJ2.Grids.TextAlign.Right).Add();
   col.Field("ShipCity").HeaderText("Ship City").Width("200").Add();
   col.Field("ShipAddress").HeaderText("Ship Address").Width("150").Add();
   col.Field("ShipCountry").HeaderText("Ship Country").Width("150").Add();

}).Render()
public IActionResult Index()
 {
    var orders = OrderDetails.GetAllRecords();
    ViewBag.datasource = orders;            
    return View();
  }

Frozen rows and columns should not be set outside the grid view port. Frozen Grid will support row and column virtualization feature, which helps to improve the Grid performance while loading a large dataset.

Limitations

The following features are not supported in frozen rows and columns:

  • Grouping
  • Row Template
  • Detail Template
  • Hierarchy Grid
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