Infragistics Filtered Row Scanning. Goal is to sum of all filtered rows based on column - infragistics

Question

I have Infragistics UltraGrid which is filtered on different conditions. Now i want to sum of couple of columns from filtered row result. Check following code
UltraGridColumn column = this.ugResults.DisplayLayout.Bands[0].Columns["Air45HValue"];
double a = 0;
for (int i = 0; i < filtInCnt; i++)
{
if (ugResults.Rows[i].GetCellValue(column) != DBNull.Value)
{
a = a + Convert.ToDouble(ugResults.Rows[i].GetCellValue(column));
}
}
This does not give me a correct answer. I think, calculation is doing on original data source, not on filtered one. How can i do above function on filtered results?

Answer 1

Your code looks correct as I tested it in a small sample application. However, I do not see how you get filtInCnt as I would suggest you to use ugResults.Rows.GetFilteredInNonGroupByRows() instead. This method returns all the filtered rows. Then you should for each the collection and perform your calculations. Here is the code:
namespace WindowsFormsApplication1
{
using System;
using System.Data;
using System.Windows.Forms;
using Infragistics.Win;
using Infragistics.Win.UltraWinGrid;
public partial class Form1 : Form
{
public Form1()
{
InitializeComponent();
}
private void Form1_Load(object sender, EventArgs e)
{
this.ultraGrid1.DisplayLayout.Override.AllowRowFiltering = DefaultableBoolean.True;
this.ultraGrid1.DisplayLayout.Override.FilterUIType = FilterUIType.FilterRow;
this.ultraGrid1.DataSource = GetDataTable();
}
private DataTable GetDataTable(int rows = 100)
{
DataTable table = new DataTable("Table1");
table.Columns.Add("Integer column", typeof(int));
table.Columns.Add("DateTime column", typeof(DateTime));
table.Columns.Add("String column", typeof(string));
for (int i = 0; i < rows; i++)
{
DataRow row = table.NewRow();
row["Integer column"] = i;
row["String column"] = "text";
row["DateTime column"] = DateTime.Today.AddDays(i);
table.Rows.Add(row);
}
return table;
}
private void ultraButton1_Click(object sender, EventArgs e)
{
UltraGridColumn column = this.ultraGrid1.DisplayLayout.Bands[0].Columns["Integer column"];
double a = 0;
foreach(var row in this.ultraGrid1.Rows.GetFilteredInNonGroupByRows())
{
var cellValue = row.GetCellValue(column);
if(cellValue != DBNull.Value)
{
a = a + Convert.ToDouble(cellValue);
}
}
MessageBox.Show("Result: " + a);
}
}
}