How can I release excel objects in C#

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As i have used below code for releasing the object it seems to have 4 to 5 more left objects running .

How can i solve that!!

What I have tried:

private static void releaseObject(object obj)
        {
            try
            {
                System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
                obj = null;
            }
            catch (Exception ex)
            {
                obj = null;
                MessageBox.Show("Unable to release the Object" + ex.ToString());
            }
            finally
            {
                GC.Collect();
            }
        }

Posted 4-Aug-22 6:58am

Randomuser787

Updated 4-Aug-22 8:08am

v2

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Gerry Schmitz · Answer 1 · 2022-08-04T08:08:00

Solution 1

Stick to what works.

How to: Programmatically close workbooks - Visual Studio (Windows) | Microsoft Docs[^]

How to properly release Excel COM objects: C# code examples[^]

Posted 4-Aug-22 8:08am

Gerry Schmitz

Comments

Randomuser787 5-Aug-22 9:18am

private static void EndProcess()
{
System.Diagnostics.Process[] process = System.Diagnostics.Process.GetProcessesByName("Excel");
foreach (System.Diagnostics.Process p in process)
{
if (!string.IsNullOrEmpty(p.ProcessName))
{
try
{
p.Kill();
}
catch { }
}
}

}

private static void releaseObject(object obj)
{
try
{
System.Runtime.InteropServices.Marshal.ReleaseComObject(obj);
obj = null;
}
catch (Exception ex)
{
obj = null;
MessageBox.Show("Unable to release the Object" + ex.ToString());
}
finally
{
GC.Collect();
}
}

tried this both no luck as it is leaving 2 in process