From e3395e9a7f945446b28d32e7b5921369b2941586 Mon Sep 17 00:00:00 2001 From: Ramya Sivakumar Date: Mon, 15 Dec 2025 20:18:38 +0530 Subject: [PATCH] 993740-RandomValue --- .../.NET/Parallel Write/Parallel Write.sln | 22 +++++++++ .../Parallel Write/Output/.gitkeep | 0 .../Parallel Write/Parallel Write.csproj | 20 ++++++++ .../Parallel Write/Parallel Write/Program.cs | 41 ++++++++++++++++ .../.NET/Parallel Write/README.md | 47 +++++++++++++++++++ 5 files changed, 130 insertions(+) create mode 100644 FAQ/Parallel Write/.NET/Parallel Write/Parallel Write.sln create mode 100644 FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Output/.gitkeep create mode 100644 FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Parallel Write.csproj create mode 100644 FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Program.cs create mode 100644 FAQ/Parallel Write/.NET/Parallel Write/README.md diff --git a/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write.sln b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write.sln new file mode 100644 index 00000000..44d4feda --- /dev/null +++ b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write.sln @@ -0,0 +1,22 @@ + +Microsoft Visual Studio Solution File, Format Version 12.00 +# Visual Studio Version 17 +VisualStudioVersion = 17.14.36623.8 d17.14 +MinimumVisualStudioVersion = 10.0.40219.1 +Project("{FAE04EC0-301F-11D3-BF4B-00C04F79EFBC}") = "Parallel Write", "Parallel Write\Parallel Write.csproj", "{EF8B2D4A-88EF-4932-9607-F09D20F83E07}" +EndProject +Global + GlobalSection(SolutionConfigurationPlatforms) = preSolution + Debug|Any CPU = Debug|Any CPU + Release|Any CPU = Release|Any CPU + EndGlobalSection + GlobalSection(ProjectConfigurationPlatforms) = postSolution + {EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Debug|Any CPU.ActiveCfg = Debug|Any CPU + {EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Debug|Any CPU.Build.0 = Debug|Any CPU + {EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Release|Any CPU.ActiveCfg = Release|Any CPU + {EF8B2D4A-88EF-4932-9607-F09D20F83E07}.Release|Any CPU.Build.0 = Release|Any CPU + EndGlobalSection + GlobalSection(SolutionProperties) = preSolution + HideSolutionNode = FALSE + EndGlobalSection +EndGlobal diff --git a/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Output/.gitkeep b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Output/.gitkeep new file mode 100644 index 00000000..e69de29b diff --git a/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Parallel Write.csproj b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Parallel Write.csproj new file mode 100644 index 00000000..cdbe0472 --- /dev/null +++ b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Parallel Write.csproj @@ -0,0 +1,20 @@ + + + + Exe + net8.0 + enable + enable + + + + + + + + + Always + + + + diff --git a/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Program.cs b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Program.cs new file mode 100644 index 00000000..6e0900eb --- /dev/null +++ b/FAQ/Parallel Write/.NET/Parallel Write/Parallel Write/Program.cs @@ -0,0 +1,41 @@ +using Syncfusion.XlsIO; + +class Program +{ + static void Main(string[] args) + { + using (ExcelEngine excelEngine = new ExcelEngine()) + { + IApplication application = excelEngine.Excel; + application.DefaultVersion = ExcelVersion.Xlsx; + IWorkbook workbook = application.Workbooks.Create(1); + IWorksheet worksheet = workbook.Worksheets[0]; + + object m_lock = new object(); + int numberOfRows = 10; + Parallel.For(1, numberOfRows, i => + { + var rand = new Random(); + lock (m_lock) + { + worksheet.Range[i, 1].Value2 = string.Format("R{0}T{1}", i, rand.Next(10)); + worksheet.Range[i, 2].Value2 = string.Format("R{0}T{1}", i, rand.Next(10)); + worksheet.Range[i, 3].Value2 = DateTime.Now.AddDays(rand.NextDouble() * 10.0); + worksheet.Range[i, 4].Value2 = DateTime.Now.AddDays(rand.NextDouble() * 10.0); + worksheet.Range[i, 5].Value2 = rand.Next(2000); + worksheet.Range[i, 6].Value2 = rand.Next(4000); + worksheet.Range[i, 7].Value2 = rand.NextDouble() * 10000.0; + worksheet.Range[i, 8].Value2 = rand.NextDouble() * 10000.0; + } + }); + + #region Save + //Saving the workbook + workbook.SaveAs("../../../Output/Output.xlsx"); + #endregion + } + } + + +} + diff --git a/FAQ/Parallel Write/.NET/Parallel Write/README.md b/FAQ/Parallel Write/.NET/Parallel Write/README.md new file mode 100644 index 00000000..4f16ecc6 --- /dev/null +++ b/FAQ/Parallel Write/.NET/Parallel Write/README.md @@ -0,0 +1,47 @@ +# How to assign data to multiple rows and columns in parallel without exceptions in C#? + +Step 1: Create a New C# Console Application Project. + +Step 2: Name the Project. + +Step 3: Install the [Syncfusion.XlsIO.Net.Core](https://www.nuget.org/packages/Syncfusion.XlsIO.Net.Core) NuGet package as reference to your .NET Standard applications from [NuGet.org](https://www.nuget.org). + +Step 4: Include the following namespaces in the **Program.cs** file. + +```csharp +using Syncfusion.XlsIO; +``` + +Step 5: Include the below code snippet in **Program.cs** to assign data to multiple rows and columns in parallel in C#. +```csharp +using (ExcelEngine excelEngine = new ExcelEngine()) +{ + IApplication application = excelEngine.Excel; + application.DefaultVersion = ExcelVersion.Xlsx; + IWorkbook workbook = application.Workbooks.Create(1); + IWorksheet worksheet = workbook.Worksheets[0]; + + object m_lock = new object(); + int numberOfRows = 10; + Parallel.For(1, numberOfRows, i => + { + var rand = new Random(); + lock (m_lock) + { + worksheet.Range[i, 1].Value2 = string.Format("R{0}T{1}", i, rand.Next(10)); + worksheet.Range[i, 2].Value2 = string.Format("R{0}T{1}", i, rand.Next(10)); + worksheet.Range[i, 3].Value2 = DateTime.Now.AddDays(rand.NextDouble() * 10.0); + worksheet.Range[i, 4].Value2 = DateTime.Now.AddDays(rand.NextDouble() * 10.0); + worksheet.Range[i, 5].Value2 = rand.Next(2000); + worksheet.Range[i, 6].Value2 = rand.Next(4000); + worksheet.Range[i, 7].Value2 = rand.NextDouble() * 10000.0; + worksheet.Range[i, 8].Value2 = rand.NextDouble() * 10000.0; + } + }); + + #region Save + //Saving the workbook + workbook.SaveAs("../../../Output/Output.xlsx"); + #endregion +} +``` \ No newline at end of file