Hello Rick,

Thank you for posting in our community.

What  I can suggest for achieving your requirement is using column summaries widget of igGrid. This allows the igGrid to display a summary row for the data in the columns of the grid. Predefined summary functions are available, however a custom functions could be created to calculate custom summaries. Custom summaries is what I believe will help you achieve your requirement.

I created a small sample using custom summaries to count how many true and false values are present in the igGrid. When defining a custom method (SummaryOperand with type Custom) you point the summary feature to a custom function to calculate the row summary. When the compactRenderMode option is set to false, the results from both the predefined and the custom methods are positioned in summary rows according to their sort order as defined by the Order property in the igGridSummaries` defaultSummaryMethods option.

features: [
{
 name: "Updating"
},
{
 name: "Summaries",
columnSettings: [
{
 columnIndex: 0, allowSummaries: false ,
},
{
 columnIndex: 1, allowSummaries: false,
},
{
 columnIndex: 2, allowSummaries: false,
},
{
 columnKey: "MakeFlag",
summaryOperands: [
{
 rowDisplayLabel: "Count True Values",
 type: "custom1",
 summaryCalculator: $.proxy(countTrueValues, this),
order: 5
},
{
 rowDisplayLabel: "Count False Values",
 type: "custom2",
 summaryCalculator: $.proxy(countFalseValues, this),
order: 6
}
]
}
]
.
.
.
.
 function countTrueValues(data) {
 var i, l = data.length, count = 0, elem;
 for (i = 0; i < l; i++) {
elem = data[i];
 if (elem === true) {
count++;
}
}
 return count;
}
 function countFalseValues(data) {
 var i, l = data.length, count = 0, elem;
 for (i = 0; i < l; i++) {
elem = data[i];
 if (elem === false) {
count++;
}
}
 return count;
}

I made a small sample and I am attaching it for your reference. The sample has two custom summary functions (countTrueValues, countFalsevalues) each calculating the number of true and false values in a Boolean column. Those summary functions are then used for the "MakeFlag" column. Even if you update and value in the MakeFlag column this is going to be immediately reflected in the summary.

Some additional information regarding Column Summaries and how they could be configured could be found at:

http://help.infragistics.com/doc/jQuery/2014.2/CLR4.0/?page=igGrid_Configuring_Column_Summaries.html

http://help.infragistics.com/Doc/jQuery/Current/CLR4.0?page=igGrid_Enabling _Column_Summaries.html

http://help.infragistics.com/jQuery/2014.2/ui.iggridsummaries

I hope you find my information helpful.

Please let me know if you need any further assistance with this matter.

What I can suggest for achieving your requirement is handling the summariesCalculated event. This event is going to be fired when the grid loads initially as well as every time a checkbox value is changed. In this event you could retrieve the count of the checked and unchecked rows and set this as a span`s text. Afterwards, you could just hide the summary rows in order to save your space. For example:

 summariesCalculated: function (evt, ui) {
 var trueValues = ui.owner.summaryCollection().MakeFlag[0].result;
 var falseValues = ui.owner.summaryCollection().MakeFlag[1].result;
 var total = trueValues + falseValues;
 $("#resultSpan").text("There are " + trueValues + " checked rows from " + total);
 $("tr[data-role='summaryrow']").each(function (index) {
 $(this).hide();
});

}

I modified my sample and I am attaching it for your reference.

I hope this will help you achieve your requirement.

What I can suggest regarding your requirement to hide the summaries button is to set the showSummariesButton option to false. This option controls whether or not the header summary icon to be shown. It could be set as following:

//Initialize
 $(".selector").igGrid({
     features: [
         {
             name: "Summaries",
             showSummariesButton: false
         }
     ]
 });
 //Get
 var showSummariesButton = $(".selector").igGridSummaries("option", "showSummariesButton");
 //Set
 $(".selector").igGridSummaries("option", "showSummariesButton", false);

Please let me know if you need any further assistance with this matter.