Brian Dukes, Web Developer - All Comments

re: Hierarchical checkbox selection with an Infragistics UltraWebGrid

subbarao_gudipalli — Tue, 03 Jun 2008 12:21:24 GMT

Thank duke.

I got a soluation after spending more than one day on this. Might be useful for others.

Solution is:

Wire up click event handler for all checkboxe's on the grid's initialize event (Added checkbox in Templatedcolumn at different levels). Name of the checkbox is same at each level i.e."chkLevel".

protected void UltraWebGrid1_InitializeRow(object sender, RowEventArgs e)

{

Infragistics.WebUI.UltraWebGrid.TemplatedColumn col = (Infragistics.WebUI.UltraWebGrid.TemplatedColumn)e.Row.Cells[0].Column;

Infragistics.WebUI.UltraWebGrid.CellItem item = (CellItem)col.CellItems[e.Row.BandIndex];

CheckBox chkLevel = (CheckBox)(item.FindControl("chkLevel"));

if (chkLevel != null)

{

chkLevel.Attributes.Add("OnClick", "javascript:ugInspectionScope_CheckAllChildrenAndParents('" + chkLevel.ClientID + "' );");

}

Java scripts for Hierarchial checkbox selection:

// this method is called on clicking check box

function ugInspectionScope_CheckAllChildrenAndParents(checkBoxID)

{

var checkBox = document.getElementById(checkBoxID);

var el=igtbl_getElementById(checkBoxID);

var cell= igtbl_getCellByElement(el);

if (cell)

{

// to chek child checkboxes

GridCell_CheckAllChildren(cell,checkBox.checked);

// this should be called only when checkbox is checked

if (checkBox.checked)

{

// to chek parent checkboxes

GridCell_CheckAllParents(cell,checkBox.checked);

}

function GridCell_CheckAllChildren(cell,checked)

{

if (cell)

{

// get child rows

var children = cell.Row.getChildRows();

if(children)

{

for (var i = 0; i < children.length; i++)

{

var row = igtbl_getRowById(children[i].id;

if(row)

{

var childCell = row.getCellFromKey('CheckBoxCol');

if(childCell)

{

childCell.getElement().children[0].checked = checked;

// call recursively to chek child checkbox

GridCell_CheckAllChildren(childCell,checked);

}

function GridCell_CheckAllParents(cell,checked)

{

if (cell)

{

// get parent row

var row = cell.Row.ParentRow;

if (row)

{

var parentCell = row.getCellFromKey('CheckBoxCol');

if(parentCell)

{

parentCell.getElement().children[0].checked = checked;

// call recursively to chek parent checkbox

GridCell_CheckAllParents(parentCell,checked);

}

re: Hierarchical checkbox selection with an Infragistics UltraWebGrid

bdukes — Mon, 02 Jun 2008 13:23:10 GMT

Rao, unfortunately I'm not really an expert on Infragistics, this just happened to be what worked for my situation. I'd suggest trying their forums for a better answer (news.infragistics.com/.../27314.aspx).

I would probably start trying to wire-up a click event handler to the parent checkbox on the grid's initialize event, and then follow the basic logic of the code above to find the children checkboxes.

Hope that helps,

re: Hierarchical checkbox selection with an Infragistics UltraWebGrid

Rao — Fri, 30 May 2008 11:30:30 GMT

Good article.

I have a problem for this requirement. AfterCellUpdate event handler is NOT called for templated column. I have a check box as TemplatedColumn in the Grid at multiple levels. Could you please tell me which event handler should be used for checking children rows’ checkboxes if parent row is checked.

If possible, provide me the sample code as what you have implemented.

re: Hierarchical checkbox selection with an Infragistics UltraWebGrid

Josh Lipford — Fri, 16 May 2008 19:18:07 GMT

great post!

I altered to to use the following code so that the checkbox will work no matter how many levels of hierarchical data you have.

function GridCell_CheckAllChildren(cellID)

{

var cell = igtbl_getCellById(cellID)

if (cell)

{

var parentValue = cell.getValue();

var children = cell.Row.getChildRows();

if(children && cell.Column.ColumnType === 3)

{

for (var i = 0; i < children.length; i++)

{

var row = igtbl_getRowById(children[i].id);

//JLL 05/16/08: childRows() returns more than just rows, so must do a check here that it is real row

if(row)

{

var childCell = row.getCellFromKey('SELECT')

if(childCell)

{

childCell.setValue(parentValue);

}

Hierarchical checkbox selection with an Infragistics UltraWebGrid - Brian Dukes, Web Developer

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