Passing a textbox value from an aspc.cs file to a user control(ascx.cs) file

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C#

ASP.NET

user-controls

Hi friends,

I have to create a excel file with a selected date. For that I need to pass a textbox date value from a aspx.cs file to a User Control(ascx.cs) file. First I get the textbox value from the aspx page to the aspx.cs file.

POSDetailReports.aspx.cs

public string ButtonSelectedDate()
        {
         
                return this.selectDateDisplayTextBox.Text;
          
        }

Then I call this method to the ascx.cs file

DailySalesFigureUserControl.ascx.cs

protected void ExportActionButton_Click(object sender, EventArgs e)
       {
           try
           {
               List<string> header = new List<string>();
               Dictionary<int, List<string>> body = new Dictionary<int, List<string>>();
               List<string> footer = new List<string>();

               DailySalesFigureModelResponseDto dailySales = new DailySalesFigureModelResponseDto();
               Type type = dailySales.GetType();
               PropertyInfo[] propertyInfoArray = type.GetProperties();
               int count = 0;

               foreach (PropertyInfo propertyInfo in propertyInfoArray)
               {
                   header.Add(propertyInfo.Name);
               }

               foreach (DailySalesFigureModelResponseDto dailySalesResponse in this.DataSource)
               {
                   List<string> bodyRow = new List<string>();

                   foreach (PropertyInfo propertyInfo in propertyInfoArray)
                   {
                       string propertyValue = string.Empty;

                       object value = propertyInfo.GetValue(dailySalesResponse, null);

                       if (value != null)
                       {
                           propertyValue = value.ToString();
                       }

                       bodyRow.Add(propertyValue);
                   }

                   body.Add(count, bodyRow);
                   count++;
               }

               ExportableDataContent exportableDataContent = new ExportableDataContent(header, body, footer);

               TabularContent tabularContent = new TabularContent();
               tabularContent = exportableDataContent.ToTabularFormat();

               DefaultExporter exporte = new DefaultExporter();

               exporte.Open(string.Empty);

               ExportLocation exportLocation = new ExportLocation("A", "2", "Sheet1");
               exporte.WriteContent(tabularContent, exportLocation);

               string tempFolderPath = @"D:\";  ////Path.GetTempPath();

               string fileName = this.posDetailReports.ButtonSelectedDate() + ".xlsx";

               string excelFilePath = tempFolderPath + fileName;

               if (File.Exists(excelFilePath))
               {
                   File.Delete(excelFilePath);
               }

               exporte.Save(excelFilePath, ExportFormat.Excel);

           }
           catch (Exception ex)
           {

           }
       }

The method is returning null.

string fileName = this.posDetailReports.ButtonSelectedDate() + ".xlsx";

Can anyone help me on this??


Thanks in advance