PATCH: 2 new features: selectOnLoad and ds_TotalRowCount

Question

Hi all,
I've got another patch. This one is pretty simple. In my app,
I need the user to specifically select something from one dataset,
which only then should trigger the second dataset to get loaded.
And likewise to a third, fourth, fifth and six dataset. To prevent
a lot of excess calls occurring, I wanted all the datasets to NOT
select the first row when they load their data. So I added a
selectOnLoad option to the list of options you can pass when
you create a XMLDataSet. If false, then once the XML is loaded, the
first row will not be selected. By default this is true, so it
won't break your apps.
Second patch was to a add a ds_TotalRowCount psuedo column
which just returns the total number of rows in the unfiltered
dataset. This allows me to do things like: "Showing 12 of 123
records" easier.
Here's the patch:
quote:
--- C:\Documents and Settings\mcclurd\My Documents\My
Website\Spry_1_2\includes\SpryData.js Fri Jul 07 11:08:00 2006
+++
c:\projects\scm\implementation\src\docroot\js\lib\spry\SpryData.js
Mon Jul 17 12:02:18 2006
@@ -1282,7 +1282,7 @@
this.name = "";
this.internalID = Spry.Data.DataSet.nextDataSetID++;
- this.curRowID = 0;
+ this.curRowID = -1;
this.data = null;
this.unfilteredData = null;
this.dataHash = null;
@@ -1748,6 +1761,7 @@
this.dataSetsForDataRefStrings = new Array;
this.hasDataRefStrings = false;
this.useCache = true;
+ this.selectOnLoad = true;
// Create a loadURL request object to store any load options
// the caller specified. We'll fill in the URL at the last
minute
@@ -1925,7 +1939,7 @@
this.dataWasLoaded = false;
this.unfilteredData = null;
this.dataHash = null;
- this.curRowID = 0;
+ this.curRowID = -1;
// At this point the url should've been processed if it
contained any
// data references. Set the url of the requestInfo structure
and pass it
@@ -2018,7 +2032,9 @@
this.filter(this.filterFunc, true);
// The default "current" row is the first row of the data
set.
- if (this.data && this.data.length > 0)
+ if (!this.selectOnLoad)
+ this.curRowID = -1;
+ else if (this.data && this.data.length > 0)
this.curRowID = this.data[0]['ds_RowID'];
else
this.curRowID = 0;
@@ -2910,6 +2935,8 @@
outputStr += (dsContext.getRowIndex() + 1);
else if (token.data == "ds_RowCount")
outputStr += dsContext.getNumRows();
+ else if (token.data == "ds_TotalRowCount")
+ outputStr += dsContext.getTotalNumRows();
else if (token.data == "ds_CurrentRowNumber")
outputStr += ds.getRowNumber(ds.getCurrentRow());
else if (token.data == "ds_CurrentRowID")
@@ -3128,6 +3155,11 @@
resultStr += dsContext.getNumRows();
row = null;
+ else if (fieldName == "ds_TotalRowCount")
+ {
+ resultStr += dsContext.getTotalNumRows();
+ row = null;
+ }
else if (fieldName == "ds_CurrentRowNumber")
var ds = dsContext.getDataSet();
@@ -3243,6 +3275,10 @@
this.getNumRows = function()
var rows = m_dataSet.getData();
+ return rows ? rows.length : 0;
+ };
+ this.getTotalNumRows = function() {
+ var rows = m_dataSet.getUnfilteredData();
return rows ? rows.length : 0;
this.getCurrentRow = function()

Answer 1

How about the total rows for a filtered data set. That would
be good also... is that information available at this time?