/// <summary>
/// Generate the image in the render methed
/// Rely on base class for rendering, set the imageurl here so
/// that generated ImageURL does not interfere with programatically set imageurl
/// </summary>
/// <param name="writer"></param>
protected override void Render(HtmlTextWriter writer)
{
if (_imageType == DynamicImageType.External)
{
this.ImageUrl = Source;
}
else if (_imageType == DynamicImageType.Static)
{
this.ImageUrl = CalculateStaticImageUrl();
}
else if (_imageType == DynamicImageType.Database)
{
if (string.IsNullOrEmpty(EntityId) || EntityId == "0")
{
this.ImageUrl = CalculateStaticImageUrl();
}
else
{
this.ImageUrl = CalculateDatabaseImageUrl();
}
}
else
{
//throw new Exception("Unimplemented dynamic image type");
throw new HEMessageException(MR.GetMessage(MessageId.UnimplementedImageType));
}
base.Render(writer);
}
// override to create repeated items
protected override void CreateChildControls()
{
if (!Visible)
{
return;
}
SelectedIndex = -1;
object o = ViewStateAttributes.GetFromViewState("NumItems", null);
if (o != null)
{
// get item ids and indexes for supporting ajax list append, insert and remove operations and restoring the exact previous state
ArrayList itemIds = GetViewStateItemIds();
ArrayList itemIndexes = GetViewStateItemIndexes();
// clear any existing child controls
Controls.Clear();
int numItems = (int)o;
int pageSize = this.PageSize;
for (int i = 0; i < numItems && i < pageSize; i++)
{
// create item
RepeaterItem item = new RepeaterItem(i, null);
InvisibleItem invItem = new InvisibleItem(i, null);
try {
// initialize item id
if (itemIds != null)
{
item.ID = Iterator.FormatId((int)itemIds[i * 2]);
invItem.ID = Iterator.FormatId((int)itemIds[i * 2 + 1]);
}
else
{
item.ID = Iterator.FormatId(i * 2);
invItem.ID = Iterator.FormatId(i * 2 + 1);
}
// initialize item index
if (itemIndexes != null)
{
item.ItemIndex = (int)itemIndexes[i * 2];
invItem.ItemIndex = (int)itemIndexes[i * 2 + 1];
}
} catch (ArgumentOutOfRangeException) {
throw new HEMessageException(MR.GetMessage(MessageId.AjaxListModified, "List Records", this.ID));
}
// initialize item from template
ItemTemplate.InstantiateIn(item);
InvisibleTemplate.InstantiateIn(invItem);
// add item to the child controls collection
Controls.Add(item);
Controls.Add(invItem);
}
}
}
protected override bool OnBubbleEvent(object source, EventArgs e)
{
// set the selected index
if (e is DataGridCommandEventArgs)
{
SelectedIndex = ((DataGridCommandEventArgs)e).Item.ItemIndex;
}
else if (e is AjaxEventArgs)
{
// ajax bubble up event
// find the datagriditem that is parent of the sender control to set the selected index
Control ctrl = source as Control;
while (!(ctrl is DataGridItem))
{
ctrl = ctrl.Parent;
}
SelectedIndex = ((DataGridItem)ctrl).ItemIndex;
// create a datagrid command ajax event args instance, so that it can be trapped onbubble up by the table records select handler
e = new DataGridCommandAjaxEventArgs((DataGridItem)ctrl, (Control)source, (AjaxEventArgs)e);
}
// set the datasource position so that the current record is set if the list is not empty and in memory
IOSList rl = DataSource;
if (rl != null && rl.Length > 0 && SelectedIndex != -1)
{
try {
rl.SetPosition(SelectedIndex);
} catch (ArgumentOutOfRangeException) {
throw new HEMessageException(MR.GetMessage(MessageId.AjaxListModified, "Table Records", this.ID));
}
}
// keep the current row number of the record list before bubbling up the event
int beforeBubbleCurrentRowNumber = (rl != null) ? rl.CurrentRowNumber : 0;
// follow up the event
bool ret = base.OnBubbleEvent(source, e);
// store viewstate changes for the current row. Skip if:
// - the record list is empty
// - the current row number is not the same as the one before bubbling up event - happens when the list is iterated inside the action
if (ret && rl != null && (rl.Length > 0) && (SelectedIndex != -1) && (beforeBubbleCurrentRowNumber == rl.CurrentRowNumber))
{
SetViewStateStorage(rl.Current, SelectedIndex);
}
return(ret);
}
public static OSDataGridTable FromTable(OSDataGrid parent, System.Web.UI.WebControls.Table table, ArrayList rowIds, ArrayList itemIndexes)
{
OSDataGridTable osTable = new OSDataGridTable(parent.ClientID);
// copy everything from table
// Properties
osTable.BackImageUrl = table.BackImageUrl;
osTable.Caption = table.Caption;
osTable.CaptionAlign = table.CaptionAlign;
osTable.CellPadding = table.CellPadding;
osTable.CellSpacing = table.CellSpacing;
osTable.GridLines = table.GridLines;
osTable.HorizontalAlign = table.HorizontalAlign;
// Rows
TableRow[] tableRows = new TableRow[table.Rows.Count];
table.Rows.CopyTo(tableRows, 0);
int i = 0;
foreach (OSDataGridItem row in tableRows)
{
try {
// restore the original id of this row, if set
if (rowIds != null)
{
row.ID = OSDataGridItem.FormatId((int)rowIds[i], parent.EnableLegacyRendering);
}
else
{
row.ID = OSDataGridItem.FormatId(i + 1, parent.EnableLegacyRendering);
}
// set the item index, if set
if (itemIndexes != null)
{
row.SetItemIndex((int)itemIndexes[i]);
}
} catch (ArgumentOutOfRangeException) {
throw new HEMessageException(MR.GetMessage(MessageId.AjaxListModified, "Table Records", parent.ClientID));
}
osTable.Rows.Add(row);
i++;
}
return(osTable);
}
protected override bool OnBubbleEvent(object sender, EventArgs args)
{
if (_itemCommandName == null)
{
return(true);
}
if (((sender.GetType() == typeof(Button) || sender.GetType() == typeof(LinkButton)) && (args is CommandEventArgs)) ||
args is AjaxEventArgs)
{
// Get the method
Control ParentPage = Utils.GetOwnerOfControl(this);
MethodInfo info = ParentPage.GetType().GetMethod(_itemCommandName);
if (info == null)
{
throw (new Exception("Could not find method " + _itemCommandName));
}
// Get the item that was clicked
Control ctrl = (Control)sender;
while (ctrl.GetType() != typeof(RepeaterItem))
{
ctrl = ctrl.Parent;
}
// Set selected item index
SelectedIndex = ((RepeaterItem)ctrl).ItemIndex;
// set the datasource position so that the current record is set if the list is not empty and in memory
IOSList rl = DataSource;
if (rl != null && rl.Length > 0)
{
try {
rl.SetPosition(SelectedIndex);
} catch (ArgumentOutOfRangeException) {
throw new HEMessageException(MR.GetMessage(MessageId.AjaxListModified, "List Records", this.ID));
}
}
// keep the current row number of the record list before bubbling up the event
int beforeBubbleCurrentRowNumber = (rl != null) ? rl.CurrentRowNumber : 0;
try {
IteratorCommandEventArgs iteratorArgs;
if (args is AjaxEventArgs)
{
// ajax event, must create IteratorCommandAjaxEventArgs to be trapped by the select handler of the iterator
iteratorArgs = new IteratorCommandAjaxEventArgs(SelectedIndex, (Control)sender, (AjaxEventArgs)args);
}
else
{
// submit event, use IteratorCommandEventArgs
iteratorArgs = new IteratorCommandEventArgs(SelectedIndex, (Control)sender);
}
// invoke the select method
info.Invoke(ParentPage, new object[] { this, iteratorArgs });
} catch (Exception exception) {
var exceptionAux = exception;
while (exceptionAux != null && exception.GetType() == typeof(System.Reflection.TargetInvocationException))
{
exceptionAux = exceptionAux.InnerException;
}
if (exceptionAux.GetType() == typeof(System.Threading.ThreadAbortException))
{
return(true);
}
throw;
}
// store viewstate changes for the current row. Skip if:
// - the record list is empty
// - the current row number is not the same as the one before bubbling up event - happens when the list is iterated inside the action
if (rl != null && rl.Length > 0 && SelectedIndex != -1 && beforeBubbleCurrentRowNumber == rl.CurrentRowNumber)
{
SetViewStateStorage(rl.Current, SelectedIndex);
}
return(true);
}
return(true);
}
