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Spire.Xls.CellRange class provides a method named Intersect(CellRange range) that is used to find the intersection of certain ranges. This is very useful when we need to get the common value(s) of two ranges in an excel worksheet.

In below picture, we take range A2:C8 and range B2:D8 as an example. Cells filled in yellow color are the intersection of the two ranges.

How to get the intersection of two ranges in Excel

Now refer to the following detail steps:

Step 1: Instantiate an object of Workbook class and load the Excel document.

Workbook workbook = new Workbook();
workbook.LoadFromFile("Sample.xlsx");

Step 2: Get the first worksheet.

Worksheet sheet = workbook.Worksheets[0];

Step 3: Get the intersection of the two ranges and print the common values of them.

CellRange range = sheet.Range["A2:C8"].Intersect(sheet.Range["B2:D8"]);
foreach (CellRange r in range)
{
    Console.WriteLine(r.Value);
}

Output:

How to get the intersection of two ranges in Excel

Full code:

[C#]
using System;
using Spire.Xls;

namespace Get_the_instersection_of_two_ranges
{
    class Program
    {
        static void Main(string[] args)
        {
            Workbook workbook = new Workbook();
            workbook.LoadFromFile("Sample.xlsx");
            Worksheet sheet = workbook.Worksheets[0];
            CellRange range = sheet.Range["A2:C8"].Intersect(sheet.Range["B2:D8"]);
            foreach (CellRange r in range)
            {
                Console.WriteLine(r.Value);
            }
            Console.ReadKey();
        }
    }
}
[VB.NET]
Imports Spire.Xls

Namespace Get_the_instersection_of_two_ranges
	Class Program
		Private Shared Sub Main(args As String())
			Dim workbook As New Workbook()
			workbook.LoadFromFile("Sample.xlsx")
			Dim sheet As Worksheet = workbook.Worksheets(0)
			Dim range As CellRange = sheet.Range("A2:C8").Intersect(sheet.Range("B2:D8"))
			For Each r As CellRange In range
				Console.WriteLine(r.Value)
			Next
			Console.ReadKey()
		End Sub
	End Class
End Namespace

Animation is a great way to draw viewers' attention to a presentation. We can apply animation effects to text, shapes or any other objects on PowerPoint slides. To make the animations more attractive, we usually set sound effects for them. This article demonstrates how to obtain these sound effects by using Spire.Presentation and C#.

Below shape is set with a fly in animation which has a sound effect named "Applause".

How to obtain object's sound effect in PowerPoint

Refer below steps to get the sound effect from the shape:

Step 1: Load the PowerPoint document.

Presentation ppt = new Presentation(@"test.pptx", FileFormat.Pptx2013);

Step 2: Get the audio in a time node.

ISlide slide = ppt.Slides[0];
TimeNodeAudio audio = slide.Timeline.MainSequence[0].TimeNodeAudios[0];

Step 3: Now we can get the properties of the audio, such as sound name, volume or detect if it's mute.

string soundName = audio.SoundName;
float volume = audio.Volume;
bool isMute = audio.IsMute;

Output:

How to obtain object's sound effect in PowerPoint

Full code:

using System;
using Spire.Presentation;
using Spire.Presentation.Drawing.TimeLine;

namespace Get_Sound_Effect
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation ppt = new Presentation(@"test.pptx", FileFormat.Pptx2013);
            ISlide slide = ppt.Slides[0];
            TimeNodeAudio audio = slide.Timeline.MainSequence[0].TimeNodeAudios[0];
            string soundName = audio.SoundName;
            float volume = audio.Volume;
            bool isMute = audio.IsMute;
            Console.WriteLine("{0}, {1}, {2}", soundName, volume, isMute);
            Console.ReadKey();
        }
    }
}

We have already shown you how to set font for the text on Chart legend and Chart Axis in C# by using Spire.Presentation. This article will focus on demonstrating how to set font for text on chart title in C#.

Here comes the code snippets:

Step 1: Create a presentation instance and load the document from file.

Presentation presentation = new Presentation();
presentation.LoadFromFile("sample.pptx", FileFormat.Pptx2010);

Step 2: Get the chart that need to be formatted the font for the text on chart title.

IChart chart = presentation.Slides[0].Shapes[0] as IChart;

Step 3: Set the font for the text on chart title area.

chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.LatinFont = new TextFont("Arial Unicode MS");
chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.Fill.SolidColor.KnownColor = KnownColors.Blue;
chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.FontHeight = 50;

Step 4: Save the document to file:

presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);

Effective screenshot after formatting the font for the chart title.

Set font for the text on Chart title in C#

Full codes:

using Spire.Presentation;
using Spire.Presentation.Charts;

namespace SetFont
{
    class Program
    {
        static void Main(string[] args)
        {
            Presentation presentation = new Presentation();
            presentation.LoadFromFile("sample.pptx", FileFormat.Pptx2010);

            IChart chart = presentation.Slides[0].Shapes[0] as IChart;

            chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.LatinFont = new TextFont("Arial Unicode MS");
            chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.Fill.SolidColor.KnownColor = KnownColors.Blue;
            chart.ChartTitle.TextProperties.Paragraphs[0].DefaultCharacterProperties.FontHeight = 50;

            presentation.SaveToFile("result.pptx", FileFormat.Pptx2010);
        }
    }
}
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