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blank grid if no products

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This commit is contained in:
Robert McRackan 2019-11-06 09:01:57 -05:00
parent 3b33648267
commit 22e5dbf83d
1 changed files with 9 additions and 26 deletions
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35
LibationWinForm/UNTESTED/ProductsGrid.cs
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@ -92,6 +92,15 @@ namespace LibationWinForm
// transform into sorted GridEntry.s BEFORE binding
//
var lib = LibraryQueries.GetLibrary_Flat_NoTracking();
// if no data. hide all columns. return
if (!lib.Any())
{
for (var i = dataGridView.ColumnCount - 1; i >= 0; i--)
dataGridView.Columns.RemoveAt(i);
return;
}
var orderedGridEntries = lib
.Select(lb => new GridEntry(lb)).ToList()
// default load order
@ -107,32 +116,6 @@ namespace LibationWinForm
//
gridEntryBindingSource.DataSource = orderedGridEntries.ToSortableBindingList();
//
// AFTER BINDING, BEFORE FILTERING
//
// now that we have data, remove/hide text columns with blank data. don't search image and button columns.
// simplifies the interface in general. also distinuishes library from wish list etc w/o explicit filters.
// must be AFTER BINDING, BEFORE FILTERING because we don't want to remove rows when valid data is simply not visible due to filtering.
for (var c = dataGridView.ColumnCount - 1; c >= 0; c--)
{
if (!(dataGridView.Columns[c] is DataGridViewTextBoxColumn textCol))
continue;
bool hasData = false;
for (var r = 0; r < dataGridView.RowCount; r++)
{
var value = dataGridView[c, r].Value;
if (value != null && value.ToString() != "")
{
hasData = true;
break;
}
}
if (!hasData)
dataGridView.Columns.Remove(textCol);
}
//
// FILTER
//