How do I compare dataggridview1 and datagridview2 column values in each row

Question

1.00/5 (1 vote)

See more:

int x = 0;
            int y = 0;
            int i = -1;
            int z = 0;
            foreach (DataGridViewRow row in dataGridView1.Rows)
            {
                i++;

                if ((dataGridView1.Rows[i].Cells[i].Value) == (dataGridView2.Rows[i].Cells[i].Value))
                {
                    x++;
                }
                else
                {
                    y++;
                }
                if (z < dataGridView2.Rows.Count)
                {
                    z++;
                }
                if (z == dataGridView2.Rows.Count)
                {
                    z--; //subtract 1 from the total count because the datagrid is 0 index based.
                }

                MessageBox.Show("Matched: " + x.ToString() + "\r\n" + "Not Matched: " + y.ToString());

What I have tried:

Need code to show if one datagridview has different string than the other by columns.   

Gridview 1   Gridview2
 Col1          Col1
John          John         match

Mark          Sam          Don't match

This is the code I'm trying to get in C# windows for to compare two data Gridviews

Posted 28-Nov-17 16:17pm

Member 12457690

Updated 3-Dec-17 9:51am

v5

Add a Solution

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)

Karthik_Mahalingam · Answer 1 · 2017-11-28T17:03:00

try this
it will handle for any number of cols

int matchedCount = 0;
           int unMatchedCount = 0;
           int dgv1RowsCount = dataGridView1.Rows.Count;
           int dgv2RowsCount = dataGridView2.Rows.Count;
           int dgv1ColsCount = dataGridView1.Columns.Count;
           int dgv2ColsCount = dataGridView2.Columns.Count;
           int minRows = dgv1RowsCount <= dgv2RowsCount ? dgv1RowsCount : dgv2RowsCount;
           int minCols = dgv1ColsCount <= dgv2ColsCount ? dgv1ColsCount : dgv2ColsCount;
            int maxRows = dgv1RowsCount >= dgv2RowsCount ? dgv1RowsCount : dgv2RowsCount;
           int maxCols = dgv1ColsCount >= dgv2ColsCount ? dgv1ColsCount : dgv2ColsCount;

           for (int i = 0; i < minRows; i++)
               for (int j = 0; j < minCols; j++)
                   if (dataGridView1.Rows[i].Cells[j].Value == dataGridView2.Rows[i].Cells[j].Value)
                       matchedCount++;
                   else
                       unMatchedCount++;

           int extraRows = (dgv1RowsCount != dgv2RowsCount) ? Math.Abs(dgv1RowsCount - dgv2RowsCount) : 0;
           int extraCols = (dgv1ColsCount != dgv2ColsCount) ? Math.Abs(dgv1ColsCount - dgv2ColsCount) : 0;
           int extraUnMatched = extraRows * maxCols;
           extraUnMatched += extraCols * maxRows;
           unMatchedCount += extraUnMatched;
           MessageBox.Show("Matched: " + matchedCount+ "\r\n" + "Not Matched: " + unMatchedCount);