got the solution 

I have changed  MyComp class something like as follow

class MyComp : IComparer
{
public int Compare(object x, object y)
{
public int Compare(object xObj, object yObj)
{

UltraGridGroupByRow x = (UltraGridGroupByRow)xObj;
UltraGridGroupByRow y = (UltraGridGroupByRow)yObj;

 return  -- my comparison check here on which I wanted to order grouped column;

}

Hello Ivaylo Petrov,

I am having similar kind of issue,

I have one UltraWinGrid (say ultraGrid1) in which suppose I have Col1, Col2, Col3.

and suppose I have 5 rows which are bind to this grid.

Col1   Col2   Col3
A 1    BBB   Random
A 2    RRR   Random
A 3    BBB   Random
A 4    CCC   Random
A 5    AAA   Random

Now I want to group this UltraGrid By Col2 programatically but after grouping I don't want to sort Col2 rows (neither ascending/descending), I want to take col2 group order as it is currently present in the table.

I want to view data like below

+ BBB (2 items)

+ RRR (1 items)

+ CCC (1 items)

+ AAA (1 items)

I tried by following way but its by default getting sorted initially in descending order

like 

+ RRR (1 items)

+ CCC (1 items)

+ BBB (2 items)

+ AAA (1 items)

but I want result as earlier one.

(

+ BBB (2 items)

+ RRR (1 items)

+ CCC (1 items)

+ AAA (1 items)

)

following is my code snippet ->

this.ultraGrid1.DataSource = GenerateDataSet();
UltraGridColumn c = ultraGrid1.DisplayLayout.Bands[0].Columns["col2"];
this.ultraGrid1.DisplayLayout.Bands[0].SortedColumns.Add(c, false, true);
c.GroupByComparer = new MyComp();

______________________________

class MyComp : IComparer

{
public int Compare(object x, object y)
{
return 0;
}
}

Please help me out on this.

Thanks in advance

Hello Ivaylo Petrov,

I am having similar kind of issue,

I have one UltraWinGrid (say ultraGrid1) in which suppose I have Col1, Col2, Col3.

and suppose I have 5 rows which are bind to this grid.

Col1   Col2   Col3
A 1    BBB   Random
A 2    RRR   Random
A 3    BBB   Random
A 4    CCC   Random
A 5    AAA   Random

Now I want to group this UltraGrid By Col2 programatically but after grouping I don't want to sort Col2 rows (neither ascending/descending), I want to take col2 group order as it is currently present in the table.

I want to view data like below

+ BBB (2 items)

+ RRR (1 items)

+ CCC (1 items)

+ AAA (1 items)

I tried by following way but its by default getting sorted initially in descending order

like 

+ RRR (1 items)

+ CCC (1 items)

+ BBB (2 items)

+ AAA (1 items)

but I want result as earlier one.

(

+ BBB (2 items)

+ RRR (1 items)

+ CCC (1 items)

+ AAA (1 items)

)

following is my code snippet ->

this.ultraGrid1.DataSource = GenerateDataSet();
UltraGridColumn c = ultraGrid1.DisplayLayout.Bands[0].Columns["col1"];
this.ultraGrid1.DisplayLayout.Bands[0].SortedColumns.Add(c, false, true);
c.GroupByComparer = new MyComp();

______________________________

class MyComp : IComparer

{
public int Compare(object x, object y)
{
return 0;
}
}

Please help me out on this.

Thanks in advance