Gantt chart in Windows Forms c#

Thanks for your answer, but unfortunatelly not works. It seems there are some mistakes at the html part!

Creating a Gantt Chart for task management in a C# application can be accomplished using various libraries and frameworks available. Since you mentioned that you don't have the budget for paid plugins or libraries, I'll suggest using open-source options.

// Assuming you have retrieved tasks data from the database
List tasks = GetTasksForEmployee(selectedEmployeeId);

// Format tasks data into Google Charts compatible format
StringBuilder ganttChartData = new StringBuilder();
ganttChartData.Append("[");
foreach (var task in tasks)
{
    ganttChartData.Append("['");
    ganttChartData.Append(task.Name);
    ganttChartData.Append("', '");
    ganttChartData.Append(task.Project);
    ganttChartData.Append("', new Date(");
    ganttChartData.Append(task.StartDate.Year);
    ganttChartData.Append(", ");
    ganttChartData.Append(task.StartDate.Month - 1); // Months in JS are zero-based
    ganttChartData.Append(", ");
    ganttChartData.Append(task.StartDate.Day);
    ganttChartData.Append("), new Date(");
    ganttChartData.Append(task.EndDate.Year);
    ganttChartData.Append(", ");
    ganttChartData.Append(task.EndDate.Month - 1); // Months in JS are zero-based
    ganttChartData.Append(", ");
    ganttChartData.Append(task.EndDate.Day);
    ganttChartData.Append(")],");
}
ganttChartData.Append("]");

// Inject the generated data into your HTML page
string html = @"



  
  


  



";

// Display the HTML page in your C# application
// (This depends on your application framework, e.g., ASP.NET, WinForms, WPF, etc.)