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Added sample
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‎Charts/Insert-caption-to-chart/.NET/Insert-caption-to-chart.sln‎

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Microsoft Visual Studio Solution File, Format Version 12.00
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# Visual Studio Version 16
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VisualStudioVersion = 16.0.30804.86
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MinimumVisualStudioVersion = 10.0.40219.1
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Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Insert-caption-to-chart", "Insert-caption-to-chart\Insert-caption-to-chart.csproj", "{E214E65C-980A-46F5-8207-6D02212A49F5}"
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EndProject
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Global
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GlobalSection(SolutionConfigurationPlatforms) = preSolution
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Debug|Any CPU = Debug|Any CPU
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Release|Any CPU = Release|Any CPU
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EndGlobalSection
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GlobalSection(ProjectConfigurationPlatforms) = postSolution
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{E214E65C-980A-46F5-8207-6D02212A49F5}.Debug|Any CPU.ActiveCfg = Debug|Any CPU
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{E214E65C-980A-46F5-8207-6D02212A49F5}.Debug|Any CPU.Build.0 = Debug|Any CPU
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{E214E65C-980A-46F5-8207-6D02212A49F5}.Release|Any CPU.ActiveCfg = Release|Any CPU
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{E214E65C-980A-46F5-8207-6D02212A49F5}.Release|Any CPU.Build.0 = Release|Any CPU
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EndGlobalSection
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GlobalSection(SolutionProperties) = preSolution
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HideSolutionNode = FALSE
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EndGlobalSection
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GlobalSection(ExtensibilityGlobals) = postSolution
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SolutionGuid = {404A7F36-0167-4219-AE4D-2B0626CEB7E3}
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EndGlobalSection
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EndGlobal

‎Charts/Insert-caption-to-chart/.NET/Insert-caption-to-chart/Insert-caption-to-chart.csproj‎

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<Project Sdk="Microsoft.NET.Sdk">
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<PropertyGroup>
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<OutputType>Exe</OutputType>
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<TargetFramework>net8.0</TargetFramework>
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<RootNamespace>Insert_caption_to_chart</RootNamespace>
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</PropertyGroup>
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<ItemGroup>
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<PackageReference Include="Syncfusion.DocIO.Net.Core" Version="*" />
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</ItemGroup>
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<ItemGroup>
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<None Update="Output\.gitkeep">
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<CopyToOutputDirectory>Always</CopyToOutputDirectory>
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</None>
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</ItemGroup>
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</Project>

‎Charts/Insert-caption-to-chart/.NET/Insert-caption-to-chart/Output/.gitkeep‎

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‎Charts/Insert-caption-to-chart/.NET/Insert-caption-to-chart/Output/Result.docx‎

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‎Charts/Insert-caption-to-chart/.NET/Insert-caption-to-chart/Program.cs‎

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using System.IO;
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using Syncfusion.DocIO;
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using Syncfusion.DocIO.DLS;
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using Syncfusion.OfficeChart;
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namespace Insert_caption_to_chart
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{
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class Program
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{
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static void Main(string[] args)
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{
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//Create a new Word document.
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using (WordDocument document = new WordDocument())
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{
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//Add a section to the document.
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IWSection section = document.AddSection();
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//Add a paragraph to the section.
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IWParagraph paragraph = section.AddParagraph();
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//Create and append the chart to the paragraph.
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WChart chart = paragraph.AppendChart(446, 270);
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//Set chart type.
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chart.ChartType = OfficeChartType.Line;
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//Set chart data.
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chart.ChartData.SetValue(1, 1, "Fruits");
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chart.ChartData.SetValue(2, 1, "Apples");
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chart.ChartData.SetValue(3, 1, "Grapes");
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chart.ChartData.SetValue(4, 1, "Bananas");
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chart.ChartData.SetValue(5, 1, "Oranges");
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chart.ChartData.SetValue(6, 1, "Melons");
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chart.ChartData.SetValue(1, 2, "Joey");
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chart.ChartData.SetValue(2, 2, 5);
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chart.ChartData.SetValue(3, 2, 4);
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chart.ChartData.SetValue(4, 2, 4);
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chart.ChartData.SetValue(5, 2, 2);
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chart.ChartData.SetValue(6, 2, 2);
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chart.ChartData.SetValue(1, 3, "Matthew");
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chart.ChartData.SetValue(2, 3, 3);
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chart.ChartData.SetValue(3, 3, 5);
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chart.ChartData.SetValue(4, 3, 4);
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chart.ChartData.SetValue(5, 3, 1);
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chart.ChartData.SetValue(6, 3, 7);
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chart.ChartData.SetValue(1, 4, "Peter");
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chart.ChartData.SetValue(2, 4, 2);
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chart.ChartData.SetValue(3, 4, 2);
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chart.ChartData.SetValue(4, 4, 3);
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chart.ChartData.SetValue(5, 4, 5);
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chart.ChartData.SetValue(6, 4, 6);
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//Set region of Chart data.
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chart.DataRange = chart.ChartData[1, 1, 6, 4];
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//Set chart series in the column for assigned data region.
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chart.IsSeriesInRows = false;
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//Set a Chart Title.
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chart.ChartTitle = "Line Chart";
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//Set Datalabels.
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IOfficeChartSerie series1 = chart.Series[0];
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IOfficeChartSerie series2 = chart.Series[1];
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IOfficeChartSerie series3 = chart.Series[2];
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series1.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
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series2.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
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series3.DataPoints.DefaultDataPoint.DataLabels.IsValue = true;
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//Set legend.
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chart.HasLegend = true;
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chart.Legend.Position = OfficeLegendPosition.Bottom;
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//Mention caption text here.
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string captionName = "Figure";
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//Add caption to the chart.
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AddCaptionToChart(chart, captionName, CaptionNumberingFormat.Number, CaptionPosition.AfterImage);
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//Update fields in the Word document.
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document.UpdateDocumentFields();
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//Create a file stream.
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using (FileStream outputFileStream = new FileStream(Path.GetFullPath(@"../../../Output/Result.docx"), FileMode.Create, FileAccess.ReadWrite))
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{
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//Save the Word document to the file stream.
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document.Save(outputFileStream, FormatType.Docx);
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}
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}
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}
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/// <summary>
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/// Add caption to the chart.
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/// </summary>
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public static void AddCaptionToChart(WChart chart, string captionName, CaptionNumberingFormat format, CaptionPosition captionPosition)
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{
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IWParagraph ownerParagraph = chart.OwnerParagraph;
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WTextBody body = (ownerParagraph.Owner as WTextBody);
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WParagraph paragraph = null;
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if (body != null)
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{
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//Get the index of the owner paragraph.
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int index = GetIndexInOwnerCollection(ownerParagraph);
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paragraph = new WParagraph(chart.Document);
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paragraph.AppendText(captionName + " ");
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captionName = captionName.Replace(" ", "_");
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paragraph.ApplyStyle(BuiltinStyle.Caption);
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WSeqField field = (WSeqField)paragraph.AppendField(captionName, FieldType.FieldSequence);
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field.NumberFormat = format;
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int chartIndex = ownerParagraph.Items.IndexOf(chart);
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// Set needed formatting and paragraph location dependently on captionPosition value
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if (captionPosition == CaptionPosition.AboveImage)
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{
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paragraph.ParagraphFormat.KeepFollow = true;
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int captionIndex = (chartIndex == 0) ? index : index + 1;
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body.ChildEntities.Insert(captionIndex, paragraph);
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if (chartIndex > 0)
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{
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ownerParagraph.Items.RemoveAt(chartIndex);
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WParagraph newParagraph = new WParagraph(chart.Document);
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newParagraph.Items.Insert(0, chart);
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body.ChildEntities.Insert(captionIndex + 1, newParagraph);
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}
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}
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else
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{
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ownerParagraph.ParagraphFormat.KeepFollow = true;
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body.ChildEntities.Insert(index + 1, paragraph);
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}
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ApplyFormattingForCaption(paragraph);
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}
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}
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/// <summary>
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/// This methode is used to get the index of the paragraph.
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/// </summary>
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public static int GetIndexInOwnerCollection(IWParagraph ownerParagraph)
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{
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ICompositeEntity composite = ownerParagraph.Owner as ICompositeEntity;
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if (composite != null)
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{
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return composite.ChildEntities.IndexOf(ownerParagraph);
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}
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//If item is inside inline content control.
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else if (ownerParagraph is InlineContentControl)
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return (ownerParagraph as InlineContentControl).ParagraphItems.IndexOf(ownerParagraph);
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return -1;
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}
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/// <summary>
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/// Apply formattings for image caption paragraph
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/// </summary>
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public static void ApplyFormattingForCaption(WParagraph paragraph)
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{
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//Align the caption
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paragraph.ParagraphFormat.HorizontalAlignment = Syncfusion.DocIO.DLS.HorizontalAlignment.Center;
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//Sets after spacing
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paragraph.ParagraphFormat.AfterSpacing = 1.5f;
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//Sets before spacing
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paragraph.ParagraphFormat.BeforeSpacing = 1.5f;
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}
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}
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}

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