public void RunExportAsync(Stream exportStream, ISpreadExportRenderer exportRenderer)
{
this.spreadExportRenderer = exportRenderer;
if (this.GetWorker().IsBusy)
{
throw new Exception("There is an export operation that has not yet finished.");
}
List <TreeViewSpreadExportRow> exportRows = (List <TreeViewSpreadExportRow>)null;
if (this.treeView.InvokeRequired)
{
this.treeView.Invoke((Delegate)(() =>
{
TreeViewExportState state = this.SaveTreeViewState();
exportRows = this.GetTreeViewDataSnapshot();
this.RestoreTreeViewState(state);
}));
}
else
{
TreeViewExportState state = this.SaveTreeViewState();
exportRows = this.GetTreeViewDataSnapshot();
this.RestoreTreeViewState(state);
}
this.GetWorker().RunWorkerAsync((object)new List <object>(2)
{
(object)new TreeViewSpreadExportDataSnapshot(string.Empty, exportRows),
(object)exportStream
});
}
private void RestoreTreeViewState(TreeViewExportState state)
{
foreach (RadTreeNode selectedNode in state.SelectedNodes)
{
selectedNode.Selected = true;
}
if (state.CurrentNode != null)
{
state.CurrentNode.Current = true;
}
this.treeView.HScrollBar.Value = state.HorizontalScrollbarValue;
this.treeView.VScrollBar.Value = state.VerticalScrolbarValue;
}
private TreeViewExportState SaveTreeViewState()
{
TreeViewExportState treeViewExportState = new TreeViewExportState()
{
HorizontalScrollbarValue = this.treeView.HScrollBar.Value, VerticalScrolbarValue = this.treeView.VScrollBar.Value
};
int num = 0;
Queue <RadTreeNode> radTreeNodeQueue = new Queue <RadTreeNode>();
foreach (RadTreeNode node in (Collection <RadTreeNode>) this.treeView.TreeViewElement.Root.Nodes)
{
radTreeNodeQueue.Enqueue(node);
}
while (radTreeNodeQueue.Count > 0)
{
RadTreeNode radTreeNode = radTreeNodeQueue.Dequeue();
if (radTreeNode.Level > num)
{
num = radTreeNode.Level;
}
if (radTreeNode.Selected)
{
treeViewExportState.SelectedNodes.Add(radTreeNode);
}
if (radTreeNode.Current)
{
treeViewExportState.CurrentNode = radTreeNode;
radTreeNode.Current = false;
}
foreach (RadTreeNode node in (Collection <RadTreeNode>)radTreeNode.Nodes)
{
radTreeNodeQueue.Enqueue(node);
}
}
this.depthOfTree = num;
this.treeView.SelectedNodes.Clear();
return(treeViewExportState);
}
private void RunExportCall(string fileName)
{
TreeViewExportState state = this.SaveTreeViewState();
this.columnWidths = new List <int>();
this.defaultItemSize = new Size(this.treeView.Width, this.treeView.ItemHeight);
if (this.ExportVisualSettings)
{
this.elementProvider = this.treeView.TreeViewElement.ViewElement.ElementProvider as TreeViewElementProvider;
}
try
{
this.spreadExportRenderer.GetFormatProvider(this.ExportFormat);
fileName = Path.GetDirectoryName(fileName) + (object)Path.DirectorySeparatorChar + Path.GetFileNameWithoutExtension(fileName) + this.spreadExportRenderer.GetFileExtension(this.ExportFormat);
FileStream fileStream;
if (this.FileExportMode == FileExportMode.NewSheetInExistingFile && File.Exists(fileName) && this.ExportFormat == SpreadExportFormat.Xlsx)
{
fileStream = new FileStream(fileName, FileMode.Open, FileAccess.ReadWrite, FileShare.ReadWrite, 32768, false);
this.spreadExportRenderer.ImportWorkbook((Stream)fileStream);
}
else
{
fileStream = new FileStream(fileName, FileMode.Create, FileAccess.ReadWrite, FileShare.ReadWrite, 32768, false);
this.spreadExportRenderer.CreateWorkbook();
}
using (fileStream)
this.ExportToStream((Stream)fileStream);
this.OnExportCompleted(new EventArgs());
ControlTraceMonitor.TrackAtomicFeature((RadControl)this.treeView, "Export", (object)fileName);
}
finally
{
this.applicationDoEvents = false;
this.RestoreTreeViewState(state);
}
}
private void RunExportCall(Stream exportStream)
{
TreeViewExportState state = this.SaveTreeViewState();
this.columnWidths = new List <int>();
this.defaultItemSize = new Size(this.treeView.Width, this.treeView.ItemHeight);
if (this.ExportVisualSettings)
{
this.elementProvider = this.treeView.TreeViewElement.ViewElement.ElementProvider as TreeViewElementProvider;
}
try
{
this.spreadExportRenderer.GetFormatProvider(this.ExportFormat);
this.spreadExportRenderer.CreateWorkbook();
this.ExportToStream(exportStream);
this.OnExportCompleted(new EventArgs());
ControlTraceMonitor.TrackAtomicFeature((RadControl)this.treeView, "Export");
}
finally
{
this.applicationDoEvents = false;
this.RestoreTreeViewState(state);
}
}
