Convert SelectedRowsCollection to RowsCollection

Is it possible to convert a SelectedRowsCollection to a RowsCollection?

SelectedRowsCollection rows = ultraGrid1.SelectedRows;

RowsCollection rc = (RowsCollection)rows;

Hi Jayson,
You can use the GetRowEnumertor method to loop through the entire WinGrid or all rows in a particular band or rows collection.
It is not possible to convert SelectedRowsCollection to a RowsCollection.

Thanks,
Josheela

Do you have a few lines of code to demo this?

Here's what I tried:

UltraGridBand band = ultraGrid1.DisplayLayout.Bands[1];

IEnumerator allRowsEnumerator = (RowsCollection)ultraGrid1.Rows.GetRowEnumerator(GridRowType.DataRow, band, null);

How can I then convert the allRowsEnumerator (either through a loop, or with some type of direct conversion) to a RowsCollection?

Josheela,

Thank you for the link:
http://www.infragistics.com/help/winforms/wingrid-looping-through-the-entire-grid

I'd like to use the Enumerator to build a RowsCollection to pass to another method.

UltraGridBand band = this.ultraGrid1.DisplayLayout.Bands[1];
foreach (UltraGridRow row in band.GetRowEnumerator(GridRowType.DataRow))
{
	// Write code to process the row

	// Here is where I'd like to build a collection of rows (RowsCollection) to pass to another method.

}

 

Hi Jayson,

GetRowEnumerator method gets all the rows associated with Bands[1].As you see in the below screenshot I have selected all rows in the Bands[1].

I would like to build a Collection of Rows, something like the following:

GridRowType rowTypes = GridRowType.DataRow;
UltraGridBand band = this.ultraGrid1.DisplayLayout.Bands[1];
IEnumerable enumerator = band.GetRowEnumerator(rowTypes);
 

RowsCollection rowsCollection = new RowsCollection();

foreach  (UltraGridRow row in enumerator)
{
    rowsCollection.Add(row);
}

Is this possible?

As you can see, GetRowEnumerator returns a RowsCollection of GridRowType. But at this point we don't have a direct way of converting it to a RowsCollection.

It would be great if you can provide me a sample of your own so that I will have a clear understanding of your requirement and can assist you better.

Looking forward to hearing you back.

Again, I'd like to pass a RowsCollection to another method to perform some operations on Rows in the UltraGrid. I'd like to be able to pass only the Rows that I need, so that I don't have to perform the operation on all Rows.

Example:

private void GetRows()
{
    GridRowType rowTypes = GridRowType.DataRow;
    UltraGridBand band = this.ultraGrid1.DisplayLayout.Bands[1];
    IEnumerable enumerator = band.GetRowEnumerator(rowTypes);
    
    RowsCollection rowsCollection = new RowsCollection();
    
    //Either build RowsCollection via Loop
    foreach  (UltraGridRow row in enumerator)
    {
        rowsCollection.Add(row);
    }
    
    //Or, cast IEnumerable to RowsCollection
    rowsCollection = (RowsCollection)enumerator;
} 

private void UpdateRows(RowsCollection rows = null)
{
    if (rows != null)
    {
        foreach (UltraGridRow r in rows)
        {
            //Perform operation on SPECIFIED rows here
        }
    }
    else
    {
        rows = ultraGrid1.Rows;
        
        foreach (UltraGridRow r in rows)
        {
            //Perform operation on ALL UltraGrid rows here
        }
    }
}

Is it possible for you to change the method to use IEnumerable as argument instead of rows Collection so that you can pass the enumerator which itself is the RowsCollection.

Not really.  The issues is that sometimes I am passing a RowsCollection, and in other instances it may be the IEnumerable.  While I could certainly modify the receiving method to accommodate both, to me, it would just make more sense to be able to always pass a RowsCollection; i.e. – to take whatever form the rows are in and convert them to a RowsCollection.  I'd really like to see this as a feature.

Thanks,
-Jayson 

Hi Jayson,

Currently there is no method available to convert an IEnumerable to a RowsCollection. You can Submit a Feature Request  and perhaps this can be added as a feature in a future release.

Thank you for using Infragistics Components.
Please let me know if I can provide you any further assistance.

Josheela