How to delete a row on an excel spreadsheet using C#

Question

0.00/5 (No votes)

See more:

I managed to get the range working correctly to include the whole row, but deleting the row fails. It does not produce an error; it just does not delete the row. Finding the empty row works fine, and I placed a marker several rows below the empty row. The result is the empty row is not getting deleted. The sheet is not protected.

The code is:

C#

private void cmdEnterData_Click(object sender, EventArgs e)
   {
      bool found = false;
      int intRowIndex;

      string targetSheetName = txtDate.Text.Substring(0, 3);
      // Add the current year to the name 
      //which gives the full name of the sheet
      targetSheetName = targetSheetName + " " + DateTime.Now.Year.ToString();
      // Get the worksheet
      Excel.Worksheet targetWorksheet =
      (Excel.Worksheet)frmFoodPantry.theWorkbook.Worksheets[targetSheetName];
      targetWorksheet.Activate();
      // Find the first empty row using the sheet index number
      int emptyRow = frmFoodPantry.FindEmptyRow
      (RegGlobals.StartingRow, targetWorksheet.Index, RegGlobals.dateCol);
            
     for(intRowIndex = RegGlobals.StartingRow; 
         intRowIndex < emptyRow && !found; intRowIndex++)
    {
       DateTime dtSheetDate = targetWorksheet.Cells[intRowIndex, RegGlobals.intDateCol].Value;
      if (DateTime.Parse(txtDate.Text) < dtSheetDate)
      {
         Excel.Range rngRow = frmFoodPantry.theWorkbook.ActiveSheet.Range[RegGlobals.dateCol + emptyRow.ToString()].EntireRow;

        // For debugging
        string temp1 = rngRow.Address;

       rngRow.EntireRow.Delete(XlDeleteShiftDirection.xlShiftUp);

       // Saving the file for debugging
       frmFoodPantry.objApp.DisplayAlerts = false;
       frmFoodPantry.theWorkbook.Save();
       frmFoodPantry.objApp.DisplayAlerts = true;

       targetWorksheet.Rows.Insert(intRowIndex,1);
       found = true;
     }
   }
   LoadData(intRowIndex, targetSheetName);
   if (EditsMade)
   {
      frmFoodPantry.objApp.DisplayAlerts = false;
      frmFoodPantry.theWorkbook.Save();
      frmFoodPantry.objApp.DisplayAlerts = true;
      EditsMade = false;
   }
}

What I have tried:

C#

targetWorksheet.Cells.Delete(rngRow); (will freeze running)
rngRow.EntireRow.Delete(XlDeleteShiftDirection.xlShiftUp);
((Range)rngRow.Rows[emptyRow]).Delete();
rngRow.Rows.Delete(XlDeleteShiftDirection.xlShiftUp);
rngRow.Delete(XlDeleteShiftDirection.xlShiftUp);

Posted 23-Aug-23 14:05pm

PaulaJoannAllen

Updated 29-Aug-23 0:41am

Deeksha Shenoy

v6

Add a Solution

Comments

Richard MacCutchan 24-Aug-23 4:02am

I just tried a simple test and the row gets deleted correctly. You will need to gather more information, probably by using the debugger.

Andre Oosthuizen 24-Aug-23 6:15am

I did not test but have you tried -

rngRow.Delete(XlDeleteShiftDirection.xlShiftUp);

PaulaJoannAllen 24-Aug-23 7:19am

I just tried it and had no results; I know I am making some simple mistake.

Richard MacCutchan 24-Aug-23 7:24am

Use the debugger to check what is happening. There is no point in saying things like, "I know I am making some simple mistake.", as that tells us nothing useful.

PaulaJoannAllen 24-Aug-23 7:29am

It worked

Andre Oosthuizen 24-Aug-23 8:45am

:) I am glad you got it working using -

rngRow.Delete(XlDeleteShiftDirection.xlShiftUp);

and the debugger.

1 solution

Add a Solution

Add your solution here

Treat my content as plain text, not as HTML

Preview 0

…

Existing Members

Sign in to your account

...or Join us

Download, Vote, Comment, Publish.

Your Email
Password
Forgot your password?

Your Email
This email is in use. Do you need your password?
Optional Password

I have read and agree to the Terms of Service and Privacy Policy
Please subscribe me to the CodeProject newsletters

When answering a question please:

Read the question carefully.
Understand that English isn't everyone's first language so be lenient of bad spelling and grammar.
If a question is poorly phrased then either ask for clarification, ignore it, or edit the question and fix the problem. Insults are not welcome.
Don't tell someone to read the manual. Chances are they have and don't get it. Provide an answer or move on to the next question.

Let's work to help developers, not make them feel stupid.

This content, along with any associated source code and files, is licensed under The Code Project Open License (CPOL)

PaulaJoannAllen · Accepted Answer · 2023-08-24T02:13:00

Thanks to Richard MacCutchan

private void cmdEnterData_Click(object sender, EventArgs e)
{
   bool found = false;
   int intRowIndex;

   // Get the month for the sheet we want to enter the data into
   string targetSheetName = txtDate.Text.Substring(0, 3);
   // Add the current year to the name which gives the full name of the sheet
   targetSheetName = targetSheetName + " " + DateTime.Now.Year.ToString();
   // Get the worksheet
   Excel.Worksheet targetWorksheet = (Excel.Worksheet)frmFoodPantry.theWorkbook.Worksheets[targetSheetName];
   targetWorksheet.Activate();
   // Find the first empty row using the sheet index number
   int emptyRow = frmFoodPantry.FindEmptyRow(RegGlobals.StartingRow, targetWorksheet.Index, RegGlobals.dateCol);
            
   for(intRowIndex = RegGlobals.StartingRow; intRowIndex < emptyRow && !found; intRowIndex++)
   {
      // Get the new cell date and time for comparison to the date and time entered
      DateTime dtSheetDate = targetWorksheet.Cells[intRowIndex, RegGlobals.intDateCol].Value;
      if (DateTime.Parse(txtDate.Text) < dtSheetDate)
      {
         // Assign the range for the empty row.
         Excel.Range rngRow = frmFoodPantry.theWorkbook.ActiveSheet.Range[RegGlobals.dateCol + emptyRow.ToString()].EntireRow;
         // Delete the empty row to make room for the new row
         rngRow.Delete(XlDeleteShiftDirection.xlShiftUp);
         // Redifine the range for the row to insert
         rngRow = frmFoodPantry.theWorkbook.ActiveSheet.Range[RegGlobals.dateCol + intRowIndex.ToString()].EntireRow;
         // Inserting a row into the worksheet above the older date
                    rngRow.Insert();
                    found = true;
     }
  }
  // Load the data into the new row
  LoadData(intRowIndex - 1, targetSheetName);
  if (EditsMade)
  {
     frmFoodPantry.objApp.DisplayAlerts = false;
     frmFoodPantry.theWorkbook.Save();
     frmFoodPantry.objApp.DisplayAlerts = true;
     EditsMade = false;
  }
}