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Add date on Presentations (Open XML SDK) on C#

My reference is Presentations (Open XML SDK)
With the code-behind below I add the date on existing PowerPoint.
This code working and in the first slide the date is added, but it's possible customize the point on the page where to insert this date? The font and size ?
This is current output:
Thank you in advance for help.
string fileName = #"C:\\inetpub\\wwwroot\\aspnet\\Template\\01_FOCUS.pptx";
using (PresentationDocument oPDoc = PresentationDocument.Open(fileName, true))
{
PresentationPart oPPart = oPDoc.PresentationPart;
SlideIdList slideIdList = oPPart.Presentation.SlideIdList;
SlidePart sp = slideIdList.ChildElements
.Cast<SlideId>()
.Select(x => oPPart.GetPartById(x.RelationshipId))
.Cast<SlidePart>().First();
AddDateToSlidePart(sp);
}
public static void AddDateToSlidePart(SlidePart slidePart1)
{
Slide slide1 = slidePart1.Slide;
CommonSlideData commonSlideData1 = slide1.GetFirstChild<CommonSlideData>();
ShapeTree shapeTree1 = commonSlideData1.GetFirstChild<ShapeTree>();
DocumentFormat.OpenXml.Presentation.Shape shape1 =
new DocumentFormat.OpenXml.Presentation.Shape();
DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties nonVisualShapeProperties1 =
new DocumentFormat.OpenXml.Presentation.NonVisualShapeProperties();
DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties nonVisualDrawingProperties1 =
new DocumentFormat.OpenXml.Presentation.NonVisualDrawingProperties() { Id = (UInt32Value)4U, Name = "Date Placeholder 3" };
DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties nonVisualShapeDrawingProperties1 =
new DocumentFormat.OpenXml.Presentation.NonVisualShapeDrawingProperties();
DocumentFormat.OpenXml.Drawing.ShapeLocks shapeLocks1 =
new DocumentFormat.OpenXml.Drawing.ShapeLocks() { NoGrouping = true };
nonVisualShapeDrawingProperties1.Append(shapeLocks1);
ApplicationNonVisualDrawingProperties applicationNonVisualDrawingProperties1 =
new ApplicationNonVisualDrawingProperties();
PlaceholderShape placeholderShape1 =
new PlaceholderShape() { Type = PlaceholderValues.DateAndTime, Size = PlaceholderSizeValues.Half, Index = (UInt32Value)10U };
applicationNonVisualDrawingProperties1.Append(placeholderShape1);
nonVisualShapeProperties1.Append(nonVisualDrawingProperties1);
nonVisualShapeProperties1.Append(nonVisualShapeDrawingProperties1);
nonVisualShapeProperties1.Append(applicationNonVisualDrawingProperties1);
DocumentFormat.OpenXml.Presentation.ShapeProperties shapeProperties1 =
new DocumentFormat.OpenXml.Presentation.ShapeProperties();
DocumentFormat.OpenXml.Presentation.TextBody textBody1 =
new DocumentFormat.OpenXml.Presentation.TextBody();
DocumentFormat.OpenXml.Drawing.BodyProperties bodyProperties1 =
new DocumentFormat.OpenXml.Drawing.BodyProperties();
DocumentFormat.OpenXml.Drawing.ListStyle listStyle1 =
new DocumentFormat.OpenXml.Drawing.ListStyle();
DocumentFormat.OpenXml.Drawing.Paragraph paragraph1 =
new DocumentFormat.OpenXml.Drawing.Paragraph();
DocumentFormat.OpenXml.Drawing.Field field1 =
new DocumentFormat.OpenXml.Drawing.Field() { Id = "{528B97E8-8E4B-4D32-BA17-4F287283DFD6}", Type = "datetime1" };
DocumentFormat.OpenXml.Drawing.RunProperties runProperties1 =
new DocumentFormat.OpenXml.Drawing.RunProperties() { Language = "it-IT" };
DocumentFormat.OpenXml.Drawing.Text text1 =
new DocumentFormat.OpenXml.Drawing.Text();
text1.Text = DateTime.Now.ToString("dd/mm/yyyy");
field1.Append(runProperties1);
field1.Append(text1);
DocumentFormat.OpenXml.Drawing.EndParagraphRunProperties endParagraphRunProperties1 =
new DocumentFormat.OpenXml.Drawing.EndParagraphRunProperties() { Language = "it-IT" };
paragraph1.Append(field1);
paragraph1.Append(endParagraphRunProperties1);
textBody1.Append(bodyProperties1);
textBody1.Append(listStyle1);
textBody1.Append(paragraph1);
shape1.Append(nonVisualShapeProperties1);
shape1.Append(shapeProperties1);
shape1.Append(textBody1);
shapeTree1.Append(shape1);
}

The OpenXML SDK Productivity tool (downloadable from the Microsoft site) is your friend here. When I need to do something like this, I:
Create the document I want
Open it in the appropriate tool (PowerPoint in this case).
Make a tiny change (to "dirty" the document and make PowerPoint believe it needs to be changed).
Save the result
Make the changes to the document that I want to see, and save the result with a new name
Open the OpenXML Productivity Tool and click the "Compare Files" tool.
The reason I force a save (in steps 3/4) is so that PowerPoint can add all of it's PowerPoint-ness to the document I created. The second save (step 5) will necessarily have all of that, so I want the two documents as close as possible - with only the "changes to the document that I want to see" being the difference between the two documents.
At this point, you should see a path to a solution to your problem. That tool is indispensable when working with OOXML.

How to prevent MS-Word memory error

Is there a way of releasing memory and preventing the following code from crashing in MS-Word?
I get the following error message:
This method or property is not available because there is a memory or disk problem.
Sub vbaTest()
Dim doc As Document
Dim sty As Style
Dim s As Style
Dim readingOrder As WdReadingOrder
Dim i As Integer
Set doc = ActiveDocument
Set sty = doc.Styles(wdStyleNormal)
For i = 0 To 100
readingOrder = sty.ParagraphFormat.readingOrder
For Each s In doc.Styles
s.Font.SizeBi = s.Font.Size + 3
Next
Set s = Nothing
Next
Set sty = Nothing
End Sub
-- or --
public void CsharpRibbon_Click(O.IRibbonControl c)
{
var doc = app.ActiveDocument;
var style = doc.Styles[Wd.WdBuiltinStyle.wdStyleNormal];
for (int i = 0; i < 100; i++)
{
var readingOrder = style.ParagraphFormat.ReadingOrder;
foreach (Wd.Style s in doc.Styles)
s.Font.SizeBi = s.Font.Size + 3;
}
}
The code above doesn't really do anything helpful. I have a ribbon button that I noticed causes a crash on repeated button presses (around 5 or 6 times in a Word session). I stripped back the code and added the for loop to simulate multiple presses of the button.

I'm not sure if this is your error, because 100 iterations doesn't seem like enough to cause memory errors, but VSTO uses COM objects, which must be released after use. The simple way to do this is:
Paragraph para = Paragraphs[1];
// etc.
Marshal.ReleaseComObject(yourObject);
There's also VSTO Contrib which makes this a little easier. Instead of making a call to ReleaseComObject, you would do something like this:
using (var doc = Document.WithComCleanup())
using (var paragraphs = doc.Resource.Paragraphs.WithComCleanup())
{
int count = paragraphs.Resource.Count;
// etc.
}
Or, for collections:
foreach (Paragraph para in Paragraphs.ComLinq<Paragraph>())
{
int pageBreakBefore = para.PageBreakBefore;
// etc.
}

How to create a TensorProto in c#?

This is a snipped of the c# client I created to query the tensorflow server I set up using this tutorial: https://tensorflow.github.io/serving/serving_inception.html
var channel = new Channel("TFServer:9000", ChannelCredentials.Insecure);
var request = new PredictRequest();
request.ModelSpec = new ModelSpec();
request.ModelSpec.Name = "inception";
var imgBuffer = File.ReadAllBytes(#"sample.jpg");
ByteString jpeg = ByteString.CopyFrom(imgBuffer, 0, imgBuffer.Length);
var jpgeproto = new TensorProto();
jpgeproto.StringVal.Add(jpeg);
jpgeproto.Dtype = DataType.DtStringRef;
request.Inputs.Add("images", jpgeproto); // new TensorProto{TensorContent = jpeg});
PredictionClient client = new PredictionClient(channel);
I found out that most classes needed to be generated from proto files using protoc
The only thing which I cant find is how to construct the TensorProto. The error I keep getting is : Additional information: Status(StatusCode=InvalidArgument, Detail="tensor parsing error: images")
There is a sample client (https://github.com/tensorflow/serving/blob/master/tensorflow_serving/example/inception_client.py) byt my Python skills are not sufficient to understand the last bit.

I also implemented that client in another language (Java).
Try to change
jpgeproto.Dtype = DataType.DtStringRef;
to
jpgeproto.Dtype = DataType.DtString;
You may also need to add a tensor shape with a dimension to your tensor proto. Here's my working solution in Java, should be similar in C#:
TensorShapeProto.Dim dim = TensorShapeProto.Dim.newBuilder().setSize(1).build();
TensorShapeProto shape = TensorShapeProto.newBuilder().addDim(dim).build();
TensorProto proto = TensorProto.newBuilder()
.addStringVal(ByteString.copyFrom(imageBytes))
.setTensorShape(shape)
.setDtype(DataType.DT_STRING)
.build();
ModelSpec spec = ModelSpec.newBuilder().setName("inception").build();
PredictRequest r = PredictRequest.newBuilder()
.setModelSpec(spec)
.putInputs("images", proto).build();
PredictResponse response = blockingStub.predict(r);

"Turn" printing using PrinterSettings using C#

I'm trying to print labels with a dynamic content. The print works fine but the problem is that the printing itself (the font) is 90 degrees twisted. It looks like this:
But it should look like this:
I cannot change the settings of the printer because other labels do print correct. So I think it must be something in the code. You can watch the C# code here:
System.Drawing.Printing.PrinterSettings printerSettings = new System.Drawing.Printing.PrinterSettings();
printerSettings.PrinterName = #"\\server\printer";
printerSettings.Copies = Convert.ToInt16((Convert.ToInt16(row.Cells["Counter"].Value.ToString()) - 1));
System.Drawing.Printing.PrintController standardPrintController = new System.Drawing.Printing.StandardPrintController();
Telerik.Reporting.Processing.ReportProcessor reportProcessor = new Telerik.Reporting.Processing.ReportProcessor();
reportProcessor.PrintController = standardPrintController;
Telerik.Reporting.InstanceReportSource instanceReportSource = new Telerik.Reporting.InstanceReportSource();
instanceReportSource.ReportDocument = myReport;
reportProcessor.PrintReport(instanceReportSource, printerSettings);
Does anyone know such a problem or a possible solution?
Suggestion very appreciated :)

I've had the same problem once, but never used Telerik for anything. I was trying to print a XPS file with the PrintServer object, and came up with this solution to rotate the print.
Basicly I change the page orientation of the queue before I print for the user, and then change it back afterwards.
It might be usefull to you as well.
PrintServer ps = new PrintServer("\\\\somePrintServer");
var queue = ps.GetPrintQueue("printerShareName");
var oldOrientation = queue.UserPrintTicket.PageOrientation;
queue.UserPrintTicket.PageOrientation = PageOrientation.Landscape;
//print job here
queue.UserPrintTicket.PageOrientation = oldOrientation;

Object reference not set to instance of object, despite creating a new object

I'm currently working on a basic drawing program. One of the requirements is to be able to save the list of drawn objects and load it back in. So far, I have written a save function that exports all items of the list to an XML format, and I'm currently working on the loading-part.
Whenever the program encounters a "< RechthoekTool >" (Dutch for RectangleTool), it executes the following code:
//Create new tool.
RechthoekTool tool = new RechthoekTool();
//Turn <Startpoint> and <Endpoint> into actual points
var sp = Regex.Replace(xn["Startpunt"].InnerText, #"[\{\}a-zA-Z=]", "").Split(',');
tool.startpunt = new Point(int.Parse(sp[0]), int.Parse(sp[1]));
var ep = Regex.Replace(xn["Eindpunt"].InnerText, #"[\{\}a-zA-Z=]", "").Split(',');
tool.eindpunt = new Point(int.Parse(ep[0]), int.Parse(ep[1]));
//Set colour and width of brush
string kleur = xn["Dikte"].InnerText;
kleur.Replace(#"Color [", "");
kleur.Replace(#"]", "");
Color c = Color.FromName(kleur);
tool.kwastkleur = c;
tool.kwast = new SolidBrush(c);
tool.dikte = int.Parse(xn["Dikte"].InnerText);
//Add to list
s.listItems.Add(tool);
Whenever I run the program, I get the 'NullReferenceException was unhandled' error("Object reference not set to an instance of an object.") at
s.listItems.Add(tool);
I do, however, instantiate the tool right at the beginning, don't I? What could be causing this error? Some Googling told me it might be because I forgot to assign a property, but as far as I can tell I've got them all covered...
Help would be greatly appreciated.

The error is due to s or s.listItems not being instantiated.
Without seeing more code, it's difficult to know which is null, but at a guess you are creating a new object for s, which contains a property/field listItems, but you aren't assigning a list to listItems.

The problem is that you aren't instantiating listItems or s. Not enough information is given to tell you how to instantiate s but you can do the other one like this:
s.listItems = new List<RechthoekTool>();

If you don't instantiate something using the new keyword; it simply won't work.
Using your code, try this:
//Create new tool.
RechthoekTool tool = new RechthoekTool();
//Turn <Startpoint> and <Endpoint> into actual points
var sp = Regex.Replace(xn["Startpunt"].InnerText, #"[\{\}a-zA-Z=]", "").Split(',');
tool.startpunt = new Point(int.Parse(sp[0]), int.Parse(sp[1]));
var ep = Regex.Replace(xn["Eindpunt"].InnerText, #"[\{\}a-zA-Z=]", "").Split(',');
tool.eindpunt = new Point(int.Parse(ep[0]), int.Parse(ep[1]));
//Set colour and width of brush
string kleur = xn["Dikte"].InnerText;
kleur.Replace(#"Color [", "");
kleur.Replace(#"]", "");
Color c = Color.FromName(kleur);
tool.kwastkleur = c;
tool.kwast = new SolidBrush(c);
tool.dikte = int.Parse(xn["Dikte"].InnerText);
List<RechthoekTool> s = new List<RechthoekTool>(); // You can now use your list.
//Add to list
s.listItems.Add(tool);