874530 - Add FAQ for how to set logarithmic scale for chart - Hotfix

File-Formats-toc.html

@@ -1675,6 +1675,7 @@
 					<li><a href="/file-formats/xlsio/faqs/how-to-set-rounded-corner-for-chart-in-excel-document">How to set rounded corner for chart in Excel document</a></li>
 					<li><a href="/file-formats/xlsio/faqs/how-to-find-and-replace-text-in-hyperlinks">How to find and replace text in hyperlinks</a></li>
 					<li><a href="/file-formats/xlsio/faqs/how-to-fix-the-argument-out-of-range-exception-when-accessing-a-large-number-of-rows-and-columns">How to fix the ArgumentOutOfRangeException when accessing a large number of rows and columns?</a></li>
+					<li><a href="/file-formats/xlsio/faqs/how-to-set-logarithmic-axis-for-chart-in-excel-document">How to set Logarithmic axis for chart in Excel document?</a></li>
                 </ul>
 			</li>
         </ul>

File-Formats/XlsIO/FAQ.md

@@ -80,4 +80,5 @@ The frequently asked questions in Essential XlsIO are listed below.
 * [How to vary colors by point for line and column chart?](faqs/how-to-vary-colors-by-point-for-line-and-column-chart)
 * [How to upload a file to Azure blob and download as stream?](faqs/how-to-upload-a-file-to-azure-blob-and-download-as-stream)
 * [How to find and replace text in hyperlinks](faqs/how-to-find-and-replace-text-in-hyperlinks)
-* [How to fix the ArgumentOutOfRangeException when accessing a large number of rows and columns?](faqs/how-to-fix-the-argument-out-of-range-exception-when-accessing-a-large-number-of-rows-and-columns)
+* [How to fix the ArgumentOutOfRangeException when accessing a large number of rows and columns?](faqs/how-to-fix-the-argument-out-of-range-exception-when-accessing-a-large-number-of-rows-and-columns)
+* [How to set Logarithmic axis for chart in Excel document](faqs/how-to-set-logarithmic-axis-for-chart-in-excel-document)

File-Formats/XlsIO/faqs/how-to-set-logarithmic-axis-for-chart-in-excel-document.md

@@ -0,0 +1,106 @@
+---
+title: How to set Logarithmic axis for chart in Excel document | Syncfusion
+description: Code example to set Logarithmic axis for chart in Excel document using Syncfusion .NET Excel library (XlsIO).
+platform: file-formats
+control: XlsIO
+documentation: UG
+---
+
+# How to set Logarithmic axis for chart in Excel document?
+
+The following code snippet shows how to set Logarithmic axis for chart in Excel document.
+
+{% tabs %}
+{% highlight c# tabtitle="C# [Cross-platform]" %}
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+    application.DefaultVersion = ExcelVersion.Xlsx;
+    FileStream inputStream = new FileStream("InputTemplate.xlsx", FileMode.Open, FileAccess.Read);
+    IWorkbook workbook = application.Workbooks.Open(inputStream, ExcelOpenType.Automatic);
+    IWorksheet sheet = workbook.Worksheets[0];
+
+    //Create a Chart
+    IChartShape chart = sheet.Charts.Add();
+
+    //Set Chart Type
+    chart.ChartType = ExcelChartType.Column_Clustered;
+
+    //Set data range in the worksheet
+    chart.DataRange = sheet.Range["A1:C6"];
+
+    //Set chart value axis
+    IChartValueAxis valueAxis = chart.PrimaryValueAxis;
+
+    //Set IsLogScale and log base
+    valueAxis.IsLogScale = true;
+    valueAxis.LogBase = 10;
+
+    //Saving the workbook
+    FileStream outputStream = new FileStream("Chart.xlsx", FileMode.Create, FileAccess.Write);
+    workbook.SaveAs(outputStream);
+
+    //Dispose streams
+    outputStream.Dispose();
+    inputStream.Dispose();
+}
+{% endhighlight %}
+
+{% highlight c# tabtitle="C# [Windows-specific]" %}
+using (ExcelEngine excelEngine = new ExcelEngine())
+{
+    IApplication application = excelEngine.Excel;
+  application.DefaultVersion = ExcelVersion.Excel2013;
+  IWorkbook workbook = application.Workbooks.Open("InputTemplate.xlsx", ExcelOpenType.Automatic);
+  IWorksheet sheet = workbook.Worksheets[0];
+
+   //Create a Chart
+    IChartShape chart = sheet.Charts.Add();
+
+    //Set Chart Type
+    chart.ChartType = ExcelChartType.Column_Clustered;
+
+    //Set data range in the worksheet
+    chart.DataRange = sheet.Range["A1:C6"];
+
+    //Set chart value axis
+    IChartValueAxis valueAxis = chart.PrimaryValueAxis;
+
+    //Set IsLogScale and log base
+    valueAxis.IsLogScale = true;
+    valueAxis.LogBase = 10;
+
+    //Saving the workbook
+    workbook.SaveAs("Chart.xlsx");
+}
+{% endhighlight %}
+
+{% highlight vb.net tabtitle="VB.NET [Windows-specific]" %}
+Using excelEngine As New ExcelEngine()
+    Dim application As IApplication = excelEngine.Excel
+    application.DefaultVersion = ExcelVersion.Xlsx
+    Dim workbook As IWorkbook = application.Workbooks.Open(InputTemplate.xlsx", ExcelOpenType.Automatic)
+    Dim sheet As IWorksheet = workbook.Worksheets(0)
+
+    ' Create a Chart
+    Dim chart As IChartShape = sheet.Charts.Add()
+
+    ' Set Chart Type
+    chart.ChartType = ExcelChartType.Column_Clustered
+
+    ' Set data range in the worksheet
+    chart.DataRange = sheet.Range("A1:C6")
+
+    ' Set chart value axis
+    Dim valueAxis As IChartValueAxis = chart.PrimaryValueAxis
+
+    ' Set IsLogScale and log base
+    valueAxis.IsLogScale = True
+    valueAxis.LogBase = 10
+
+    ' Saving the workbook
+    workbook.SaveAs(outputStream)
+
+End Using
+{% endhighlight %}
+{% endtabs %}