Compare datagrid rows

Hi Bimol,
If you are looking to remove rows with duplicate entries you can try something like this
foreach (currentrow=0;currentrow{
var rowtoComp = datagridview1.rows[currentrow];
foreach(var row in datagridview1.rows)
if (rowtoComp.equls(row)
{
// Your Logic.
}
}

I want to do dynamically ,Maybe if I cant find any respond then try to that ,

Actullay one way can be I want ;

if my grid has a this value

Number    
90            
90            

or 

Number    
90            
80            


this code is working .

 for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)            {
                for (int ii = i + 1; ii < dataGridView1.Rows.Count; ii++)
               
                    {
                        if (dataGridView1.Rows[i].Cells[0].Value.ToString() == dataGridView1.Rows[ii].Cells[0].Value.ToString())
                        {
                            MessageBox.Show("Test");
                        }


                        else
                        {
                            MessageBox.Show("mest");
                        }
                    }
}
}
if my grid has a this value ;
Number    
90            
80  
70
80
90
80

above code in looped and not working .      

how about 

XmlTextWriter xmlDocument = new XmlTextWriter(@"d:\Deneme.xml", System.Text.Encoding.GetEncoding("ISO-8859-9"));
xmlDocument.Formatting = Formatting.Indented;
xmlDocument.Indentation = 5;
xmlDocument.WriteStartDocument();
xmlDocument.WriteStartElement("SALES_INVOICES");

for (int i = 0; i < dataGridView1.Rows.Count; i++)

 { xmlDocument.WriteElementString("INVOICE"); xmlDocument.WriteElementString("TYPE", dataGridView1.Rows[i].Cells[0].Value.ToString()); xmlDocument.WriteEndElement();
}

}
xmlDocument.WriteEndElement(); xmlDocument.Close();

MessageBox.Show("Xml Created."); }

No I can't :) due to XML class

Actually I am reading value from Excel and write to it to XML therefore I can't use datatable or dataset My XML tags is different .

Maybe someone did it before .

hmm.. might be.

then try :

you must be binding grid for datatable or dataset.

try to make copy of it and then you have to compare using 2 for loops
datatable1  t1=new datatable1();// fill data in table
datatable2  t2=t1.Copy();

for(int i = 0; i < datatable1.Rows.Count; i++)
{

for(int j= 0; j < datatable2.Rows.Count; j++)

{

        if(datatable1.Rows[i][0]. ==datatable2.Rows[j][0])

{

 // do your work..

}

}

}

No didn't work ,

if my grid has a this value

Number    
90            
90            

or 

Number    
90            
80            


this code is working .

 for (int i = 0; i < dataGridView1.Rows.Count - 1; i++)            {
                for (int ii = i + 1; ii < dataGridView1.Rows.Count; ii++)
               
                    {
                        if (dataGridView1.Rows[i].Cells[0].Value.ToString() == dataGridView1.Rows[ii].Cells[0].Value.ToString())
                        {
                            MessageBox.Show("Test");
                        }


                        else
                        {
                            MessageBox.Show("mest");
                        }
                    }
}
}
if my grid has a this value ;
Number    
90            
80  
70
80
90
80

above code in looped and not working .      

Ok.
then  try


this is not tested. so please refactor before using.

Yes please ,I already eleborated So Cells[0]

    if (dataGridView1.Rows[i].Cells[0].Value == dataGridView1.Rows[i].Cells[0].Value)

in the same column ?

please elaborate ?

Agree with Sivaraman ,

Birol I think 
dataGridView1.Rows[i].Cells[0].Value == dataGridView1.Rows[i].Cells[0].Value

should be replaced with

dataGridView1.Rows[i].Cells[0].Value == dataGridView2.Rows[i].Cells[0].Value // grid which you want to compare.

Can you see above code ,

if u add this line you dont take that error .
 for (int i = 0; i < dataGridView1.Rows.Count; i++)

The below code does not require any conditional checks as it always pass. Are you missing something?