Restore Expand CollapseGrouping State for multiple Level

Riendy — Thu, 07 Jul 2011 02:26:37 GMT

Hello Mubarack,

This code has a logic that can restore only for first level of grouping. To restore more than one level of childRow, you need to add other variable that can store not only row index but also group index in the WebGrid, and other logic to restore.

Here I attach a simple runable sample that show you how to restore Expand and collapse grouping state for multiple level in WebGrid.

Hope this helps.
Riendy

Restore Expand CollapseGrouping State for multiple Level

MubaursIT — Wed, 06 Jul 2011 09:27:55 GMT

Hello,

I was using Webgrid grouping and like to restore the Expand and Collapse grouping state while refresh/Sort.

I was try to implemate the code given in the Intersoft community which using

WebGrid1_OnGroupCollapse,WebGrid1_OnGroupExpand,WebGrid1_OnAfterResponseProcess

<script type="text/javascript">

<!--

//expandedGroupNodes is a global variable string that keeps the expanded group nodes state

var expandedGroupNodes;

function WebGrid1_OnGroupExpand(controlId, tblName, groupIndex, rowPosition, rowIndex) {

var WebGrid1 = ISGetObject(controlId);

var CurrentPage = WebGrid1.CurrentPageIndex; //obtain current page index of expanded group node

//invoke StoreExpandGroupNode method and passing current page index, row position, and action parameter

//action is set to true if the group node is expanded

StoreExpandedGroupNode(CurrentPage, rowPosition, true);

return true;

}

function WebGrid1_OnGroupCollapse(controlId, tblName, groupIndex, rowPosition, rowIndex) {

var WebGrid1 = ISGetObject(controlId);

var CurrentPage = WebGrid1.CurrentPageIndex; //obtain current page index of collapsed group node

//invoke StoreExpandGroupNode method and passing current page index, row position, and action parameter

//action is set to false if the group node is collapsed

StoreExpandedGroupNode(CurrentPage, rowPosition, false);

return true;

}

function WebGrid1_OnAfterResponseProcess(controlId, actionName, lastRequestObject, xmlResponseObject) {

var WebGrid1 = ISGetObject(controlId);

//if Paging or ColumnSort or Refresh action, restore the group nodes state of current page

if (actionName == "Paging")

if (expandedGroupNodes != null) {

var PageRowInfo = expandedGroupNodes.split(";");

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

var Page = PageRowInfo[i].split("#")[0];

var Row = PageRowInfo[i].split("#")[1];

if (WebGrid1.CurrentPageIndex == Page)

WebGrid1.RootTable.GetRowByGroup(0, Row).ExpandGroupRow();

}

}

return true;

}

function StoreExpandedGroupNode(PageIndex, RowIndex, action) {

if (action) {

//expanded group node state will be kept in 'n#m'

//n is the page index of expanded group node

//# is used as delimiter between page index and row position of expanded group node

//m is the row position of expanded group node

if (expandedGroupNodes == null)

expandedGroupNodes = PageIndex + "#" + RowIndex;

else

expandedGroupNodes += ";" + PageIndex + "#" + RowIndex;

}

else {

//obtain the information about PageIndex and RowPosition delimited by ";"

var PageRowInfo = expandedGroupNodes.split(";");

var expandedGroupNodesTemp;

//get the Page and Row info of expanded group node

//and compare it with current PageIndex and RowIndex of collapsed group node

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

var Page = PageRowInfo[i].split("#")[0];

var Row = PageRowInfo[i].split("#")[1];

//if (PageIndex != Page && RowIndex != Row) {

if (PageIndex != Page) {

if (expandedGroupNodesTemp == null)

expandedGroupNodesTemp = PageRowInfo[i];

else

expandedGroupNodesTemp += ";" + PageRowInfo[i];

}

else {

if (RowIndex != Row) {

if (expandedGroupNodesTemp == null)

expandedGroupNodesTemp = PageRowInfo[i];

else

expandedGroupNodesTemp += ";" + PageRowInfo[i];

}

}

}

expandedGroupNodes = expandedGroupNodesTemp;

}

}

-->

</script>

But This is working only for one level of grouping , if we try for more than one level its not restore properly.

Please let us know if anyway to find childRow position to fix this problem.

Regards

Mubarack

Intersoft Community - WebGrid Enterprise - Restore Expand CollapseGrouping State for multiple Level

Restore Expand CollapseGrouping State for multiple Level

Restore Expand CollapseGrouping State for multiple Level