How to update Summary with unsaved Changes in Batch Edit Mode
During batch editing, the summary row will be updated once the update action is completed successfully.
So upon changing any value in batch edit mode, doesn’t alter the corresponding summary row value.
Solution:
We can achieve the above requirement using the CellSave event of the grid.
The CellSave event will be triggered every time a cell value is being altered.
Example:
In the following example, we have rendered a grid with batch editing and summaryRow enabled.
- Render the grid
JS:
<div id="Grid"></div>
<script type="text/javascript">
$(function () {
var data = window.gridData;
$("#Grid").ejGrid({
dataSource: data,
allowPaging: true,
showSummary: true,
editSettings: { allowEditing: true, allowAdding: true, allowDeleting: true, editMode: ej.Grid.EditMode.Batch},
toolbarSettings: { showToolbar: true, toolbarItems: ["add","edit","delete","update","cancel"] },
summaryRows: [
{ title: "Maximum", summaryColumns: [{ summaryType: ej.Grid.SummaryType.Maximum, displayColumn: "EmployeeID", dataMember: "EmployeeID" }]},
{ title: "Sum", summaryColumns: [{ summaryType: ej.Grid.SummaryType.Sum, displayColumn: "Freight", dataMember: "Freight", format: "{0:C2}" }] }
],
columns: [
{ field: "OrderID", isPrimaryKey: true, headerText: "Order ID"},
{ field: "CustomerID", headerText: "Customer ID" },
{ field: "EmployeeID", headerText: "Employee ID"},
{ field: "Freight" },
{ field: "ShipCity"},
{ field: "ShipCountry"}
],
cellSave: "cellSave"
});
});
</script>
MVC
[In View]
@(Html.EJ().Grid<object>("Grid")
.Datasource((IEnumerable<object>)ViewBag.datasource)
.ShowSummary()
.AllowPaging()
.EditSettings(edit => { edit.AllowAdding().AllowDeleting().AllowEditing().EditMode(EditMode.Batch); })
.ToolbarSettings(toolbar =>
{
toolbar.ShowToolbar().ToolbarItems(items =>
{
items.AddTool(ToolBarItems.Add);
items.AddTool(ToolBarItems.Edit);
items.AddTool(ToolBarItems.Delete);
items.AddTool(ToolBarItems.Update);
items.AddTool(ToolBarItems.Cancel);
});
})
.SummaryRow(row =>
{
row.Title("Maximum")
.SummaryColumns(col =>
{
col.SummaryType(SummaryType.Maximum)
.DisplayColumn("EmployeeID")
.DataMember("EmployeeID")
.Add();
}).Add();
row.Title("Sum")
.SummaryColumns(col =>
{
col.SummaryType(SummaryType.Sum)
.DisplayColumn("Freight")
.DataMember("Freight")
.Format("{0:C}")
.Add();
}).Add();
})
.Columns(col =>
{
col.Field("OrderID").HeaderText("Order ID").IsPrimaryKey(true).Add();
col.Field("CustomerID").HeaderText("Customer ID").Add();
col.Field("EmployeeID").HeaderText("Employee ID").Add();
col.Field("Freight").Add();
col.Field("ShipCity").Add();
col.Field("ShipCountry").Add();
})
.ClientSideEvents(eve=>eve.CellSave("cellSave"))
)
[In controller]
namespace EJGrid.Controllers
{
public class HomeController : Controller
{
public ActionResult Index()
{
var DataSource = OrderRepository.GetAllRecords().ToList();
ViewBag.data = DataSource;
return View();
}
}
}
ASP:
<ej:Grid ID="Grid" runat="server" AllowPaging="True">
<ClientSideEvents CellSave="cellSave" />
<Columns>
<ej:Column Field="OrderID" IsPrimaryKey="true" />
<ej:Column Field="CustomerID" HeaderText="Customer ID" />
<ej:Column Field="EmployeeID" HeaderText="Employee ID" />
<ej:Column Field="Freight" />
<ej:Column Field="ShipCity" />
<ej:Column Field="ShipCountry" />
</Columns>
<SummaryRows>
<ej:SummaryRow Title="Maximum">
<SummaryColumn>
<ej:SummaryColumn SummaryType="Maximum" DisplayColumn="EmployeeID" DataMember="EmployeeID" />
</SummaryColumn>
</ej:SummaryRow>
</SummaryRows>
<SummaryRows>
<ej:SummaryRow Title="Sum">
<SummaryColumn>
<ej:SummaryColumn SummaryType="Sum" Format="{0:C}" DisplayColumn="Freight" DataMember="Freight" />
</SummaryColumn>
</ej:SummaryRow>
</SummaryRows>
<EditSettings AllowEditing="True" AllowAdding="True" AllowDeleting="True" EditMode="Batch"></EditSettings>
<ToolbarSettings ShowToolbar="True" ToolbarItems="add,edit,delete,update,cancel"></ToolbarSettings>
</ej:Grid>
[Default.aspx.cs]
protected void Page_Load(object sender, EventArgs e)
{
this.Grid.DataSource = OrderRepository.GetAllRecords().ToList();
this.Grid.DataBind();
}
- In the CellSave event of the Grid, using the args parameter the difference in the value updated is calculated and accordingly the sum of the column is calculated and updated. The formatting for the calculated value is done using the formatting method of the Grid.
<script type="text/javascript">
function cellSave(args) {
if (args.columnName == "Freight") {
var newvalue = args.value, format;// getting the new value
var oldvalue = args.rowData.Freight;// getting the old value
var extra = newvalue - oldvalue;//getting the difference in value
for (var i = 0; i < this.model.summaryRows.length; i++)
for (var j = 0; j < this.model.summaryRows[i].summaryColumns.length; j++) {
if (this.model.summaryRows[i].summaryColumns[j].dataMember == "Freight" && this.model.summaryRows[i].summaryColumns[j].summaryType == "sum"){
format = !ej.isNullOrUndefined(this.model.summaryRows[i].summaryColumns[j].format) ? this.model.summaryRows[i].summaryColumns[j].format : "{0:N}";//getting the format of the summaryColumn
j = i;// finding the summaryRow to be modified
break;
}
}
var summary = ($(".e-gridSummaryRows:eq(" + j + ")").find("td.e-summaryrow")[args.cell.index()].innerHTML).replace(/[$,]/g, "")// getting the summaryValue of the corresponding summaryRow
var summaryval = (parseFloat(summary) + extra);
summaryval = this.formatting(format,summaryval);//get the formatted value of the summary Value
$(".e-gridSummaryRows:eq(" + j + ")").find("td.e-summaryrow")[args.cell.index()].innerHTML = summaryval;//assigning the innerHTML of the summaryrow with updated value
}
}
</script>
Result:
Fig 1: Initial Rendering
Fig 2: On editing a cell
Fig 3: On saving the edited cell
Note:
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