private IDictionary <string, bool> GetVisibilityDictionary(bool createIfNotExists)
{
var result = (IDictionary <string, bool>)viewState.GetFromViewState(INPUT_VISIBILITY_KEY_IN_VIEWSTATE, null);
if ((result == null) && createIfNotExists)
{
result = new Dictionary <string, bool>();
viewState.SetInViewState(INPUT_VISIBILITY_KEY_IN_VIEWSTATE, result, null);
}
return(result);
}
public void RemoveItem(int itemIndex)
{
// clear selected item, if deleting the current selected index
if (SelectedIndex == itemIndex)
{
SelectedIndex = -1;
}
// find the Repeater Item for this itemItem
int rowIndexToRemove = -1;
for (int i = 0; i < Controls.Count; i += 2)
{
IIteratorItem item = (IIteratorItem)Controls[i];
if (item.ItemIndex == itemIndex)
{
rowIndexToRemove = i;
break;
}
}
IOSList rl = DataSource;
if (rowIndexToRemove == -1 || itemIndex >= rl.Length)
{
throw new ArgumentException("Index of out range");
}
// remove the repeater item
Controls.RemoveAt(rowIndexToRemove);
// remove also the invisible item, now at the same position
Controls.RemoveAt(rowIndexToRemove);
// update the datasource
rl.Remove(itemIndex);
// update item count
ViewStateAttributes.SetInViewState("NumItems", ItemCount, null);
// set the empty property
_isEmpty = (rl.Length == 0);
// decrease higher item indexes in the iterator
foreach (IIteratorItem otherItem in Controls)
{
if (otherItem.ItemIndex > itemIndex)
{
otherItem.ItemIndex--;
}
}
// update item ids and indexes in the viewstate
StoreViewStateItemIdsandIndexes();
}
// override to create repeated items from DataSource
protected override void OnDataBinding(EventArgs e)
{
base.OnDataBinding(e);
if (!Visible)
{
return;
}
if (DataSource != null)
{
_isDataBinding = true;
// clear selected index
SelectedIndex = -1;
// clear widget viewstate storage variable
ClearViewStateStorage(this, e);
// clear any row ids and item indexes, since we are rebuilding all the list
ClearViewStateRowIdsandItemIndexes();
// clear any existing child controls
Controls.Clear();
// clear any previous viewstate for existing child controls
ClearChildViewState();
DataSource.StartIteration();
if (!DataSource.Empty)
{
DataSource.Advance(StartIndex);
}
// iterate DataSource creating a new item for each data item
int i = 0;
int pageSize = this.PageSize;
while (DataSource.MoveNext() && i < pageSize)
{
CreateItem(DataSource, i);
i++;
}
// store the number of items created in viewstate for postback scenarios
object o = ViewStateAttributes.GetFromViewState("NumItems", null);
if (i > 0 || o != null)
{
ViewStateAttributes.SetInViewState("NumItems", i, null);
}
// prevent child controls from being created again
ChildControlsCreated = true;
_isDataBinding = false;
DataSource.EndIteration();
}
}
private void InsertItem(int itemIndex, object dataItem, bool selectItem)
{
// check if the current page is full
IOSList rl = DataSource;
// update the datasource
rl.Insert(dataItem, itemIndex);
// increase higher item indexes in the iterator
foreach (IIteratorItem otherItem in Controls)
{
if (otherItem.ItemIndex >= itemIndex)
{
otherItem.ItemIndex++;
}
}
// create an item at the end of the list (and don't databind...)
CreateItem(dataItem, itemIndex, false);
// update item count
ViewStateAttributes.SetInViewState("NumItems", ItemCount, null);
// update item ids and indexes in the viewstate
StoreViewStateItemIdsandIndexes();
var previousSelectedIndex = SelectedIndex;
var previousDataSourceIndex = rl.CurrentRowNumber;
SelectedIndex = itemIndex;
// set the record list position
rl.SetPosition(itemIndex);
// databind the created item
DataBindLastCreatedItem();
if (!selectItem)
{
// revert the record list position
rl.SetPosition(previousDataSourceIndex);
SelectedIndex = previousSelectedIndex;
}
}
protected override void OnPreRender(EventArgs e)
{
base.OnPreRender(e);
if (Enabled && !_registeredPostBack)
{
// only register requires postback event once per request, otherwise in multiple partial refreshes the
// control's ids will appear multiple times in the Viewstate in the key __ControlsRequirePostBackKey__
Page.RegisterRequiresPostBack(this);
_registeredPostBack = true;
}
string value = Attributes["value"];
if (OSPage.IsAjaxRequest && value == null)
{
//#109916 - Get value from the viewstate, since if the radio is inside a table records the GetRadioValue() will return null
value = (string)ViewState["value"];
}
ViewStateAttributes.SetInViewState("value", value, null);
}
public void EnsureChildControlsOnPostback()
{
ViewStateAttributes.SetInViewState("EnsureChildControls", true, false);
}
