Fix: Export ExpandoObject to excel in C#

 To export data from an `ExpandoObject` to an Excel file in C#, you can use a library like EPPlus, which allows you to work with Excel files in a straightforward manner. EPPlus is available as a NuGet package. Here's how you can use it to export data to an Excel file:


1. **Install EPPlus**:


   In your C# project, use NuGet Package Manager to install the EPPlus library:


   ```bash

   Install-Package EPPlus

   ```


2. **Create and Export Data**:


   Here's a sample code to export data from an `ExpandoObject` to an Excel file using EPPlus:


   ```csharp

   using System;

   using System.Collections.Generic;

   using System.Dynamic;

   using OfficeOpenXml;


   class Program

   {

       static void Main(string[] args)

       {

           var data = new List<ExpandoObject>

           {

               new ExpandoObject(),

               new ExpandoObject(),

           };


           // You can add properties to the ExpandoObject here, for example:

           // ((dynamic)data[0]).FirstName = "John";

           // ((dynamic)data[0]).LastName = "Doe";


           ExportToExcel(data, "output.xlsx");

       }


       static void ExportToExcel(List<ExpandoObject> data, string fileName)

       {

           using (var package = new ExcelPackage())

           {

               var worksheet = package.Workbook.Worksheets.Add("Sheet1");

               var rowIndex = 1;


               // Assuming the properties are the same for all ExpandoObjects

               var properties = ((IDictionary<string, object>)data[0]).Keys;


               // Create header row

               foreach (var property in properties)

               {

                   worksheet.Cells[rowIndex, properties.ToList().IndexOf(property) + 1].Value = property;

               }


               rowIndex++;


               // Populate data rows

               foreach (var item in data)

               {

                   var rowData = (IDictionary<string, object>)item;


                   foreach (var property in properties)

                   {

                       worksheet.Cells[rowIndex, properties.ToList().IndexOf(property) + 1].Value = rowData[property];

                   }


                   rowIndex++;

               }


               package.SaveAs(new System.IO.FileInfo(fileName));

           }

       }

   }

   ```


3. **Modify the `data` List**:


   In this example, the `data` List contains two `ExpandoObject` instances. You can add properties and data to these objects according to your requirements.


4. **Specify the Output File**:


   The `ExportToExcel` method exports the data to an Excel file named "output.xlsx" in the current directory. You can change the `fileName` parameter to specify a different output file path.


This example is a basic starting point for exporting data from `ExpandoObject` to an Excel file. You can expand upon it to match your specific data and formatting needs.

Comments

Post a Comment

Popular posts from this blog

bad character U+002D '-' in my helm template

 In Helm templates, the hyphen character (`-`) can sometimes be treated as a reserved character, particularly when defining values or labels. To include a hyphen character in a Helm template without issues, you can use one of the following approaches: 1. **Quoting the Hyphen:**    You can enclose the hyphen in double quotes, like this:    ```yaml    key: "-"    ```    This way, Helm will interpret the hyphen as a string rather than an operator. 2. **Using Backticks:**    If you need to use the hyphen within a Go template function or inside backticks, you can escape it with a backslash (`\`), like this:    ```yaml    value: `{{ .Values.someField | printf "%s \\-" }}`    ```    The backslash prevents Helm from interpreting the hyphen as a special character. 3. **Variable Assignment:**    Assign the value to a variable and use it. For example:    ```yaml    {{- $hyphen := "-" }}    key: {{ $hyphen }}    ```    This way, you can use the variable `$hyphen` wher
Read more

GitLab pipeline stopped working with invalid yaml error

 When your GitLab pipeline has stopped working with an "invalid YAML" error, it means there's a problem with your `.gitlab-ci.yml` file. This could be due to syntax errors, incorrect indentation, or other issues in your pipeline configuration. Here's how to troubleshoot and resolve this issue: 1. **Check for Syntax Errors**:    Carefully review your `.gitlab-ci.yml` file for any syntax errors. Common issues include missing colons, indentation problems, or mismatched quotation marks. Use a YAML linter or an online YAML validator to identify and correct syntax errors. 2. **Indentation**:    YAML relies heavily on proper indentation. Make sure that all lines within the same block have consistent indentation (typically using spaces, not tabs). Incorrect indentation can cause YAML parsing errors. 3. **Dashes and Lists**:    Ensure that you use the correct syntax for lists (arrays) in YAML by starting each item with a dash (`-`). Be consistent with your use of dashes throug
Read more

How do I add a printer in OpenSUSE which is being shared by a CUPS print server?

 To add a printer in openSUSE that is being shared by a CUPS print server, you can use the following steps: 1. **Ensure CUPS Client is Installed:**    Make sure your openSUSE system has the CUPS client tools installed. You can install them using the following command:    ```bash    sudo zypper install cups-client    ``` 2. **Discover Available Printers:**    Use the `lpinfo` command to discover available printers on your CUPS print server. Replace `cups-server-hostname` with the hostname or IP address of your CUPS server:    ```bash    lpinfo -v -h cups-server-hostname:631    ```    This command should list the printers shared by the CUPS server. 3. **Add a Printer:**    Use the `lpadmin` command to add a printer. Replace `printer-name` with the name of the printer you want to add and `printer-uri` with the URI obtained from the `lpinfo` command:    ```bash    sudo lpadmin -p printer-name -E -v printer-uri    ```    For example:    ```bash    sudo lpadmin -p MyPrinter -E -v socket://cu
Read more