How to find the same values in different dataGrids?

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http://www.2shared.com/photo/tvmgAetg/eg12.html[^]

There are two panels in the picture. Panel 1 have 6 rows and 1 column. In panel 1 there are 2 inner rows stated as DL and UL. In panel 2 there are 3 inner rows.

I need to search the values in datagrid from panel 1 and compare with the values from panel 2 datagrids and if they are similar in values, mark both location with similar color.

Posted 20-Jun-12 3:25am

skashanali

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Adam David Hill · Accepted Answer · 2012-06-20T06:16:00

Here's a pseudo-code solution just to give you a simple algorithm, which should put you on the right lines. The actual re-colouring bit I can't remember the code for off the top of my head so take the essence of what it is doing rather than the actual code. If you're still stuck, then please give some more details and your own code so far.

C#

// Assuming you have already read out your Grid values into two lists, listAValues and listBValues...


// Step 1 - Get distinct lists
List<int> distinctMatchingValues = (from a in listAValues.Distinct()
                                    join b in listBValues.Distinct() on a equals b
                                    select a).ToList();


// Step 2 - Give each distinct value a random colour
Dictionary<int, Color> palette = new Dictionary<int, Color>();
foreach(var i in distinctMatchingValues)
{
    palette.Add(i, GetNextOrRandomColor()); //Add whatever function you like here to give you a different colour each time
}


// Step 3 - Iterate through each cell and colour it according to the dictionary
foreach(var column in gridAColumns)
{
    foreach(var cell in column)
    {
       cell.Style = new DataGridViewStyle{ BackColor = palette[cell.Value] };
    }
}
foreach(var column in gridBColumns)
{
    foreach(var cell in column)
    {
       cell.Style = new DataGridViewStyle{ BackColor = palette[cell.Value] };
    }
}

skashanali · Accepted Answer · 2012-06-20T21:29:00

While compiling this code, I am getting this error: Can anyone have an idea why I am getting this error ?

"Cannot implicitly convert type 'System.Collections.Generic.List<string>' to 'System.Collections.Generic.List<int>'"

"foreach statement cannot operate on variables of type 'System.Windows.Forms.DataGridView' because 'System.Windows.Forms.DataGridView' does not contain a public definition for 'GetEnumerator'"

C#

{ rows = 0; string[] listBValues = new string[16]; for (int col = 0; col < dataGridView25.Rows[rows].Cells.Count; col++) { if (dataGridView25.Rows[rows].Cells[col].Value.ToString() != "") { listBValues[pos] = dataGridView25.Rows[rows].Cells[col].Value.ToString(); pos++; } } /// Step 1 - Get distinct lists List<int> distinctMatchingValues = (from a in listAValues.Distinct() join b in listBValues.Distinct() on a equals b select a).ToList(); // Step 2 - Give each distinct value a random colour Dictionary<int, Color> palette = new Dictionary<int, Color>(); foreach (var i in distinctMatchingValues) { //palette.Add(i, GetNextOrRandomColor()); //Add whatever function you like here to give you a different colour each time var color = Color.FromArgb(randomGen.Next(255), randomGen.Next(255), randomGen.Next(255)); } // Step 3 - Iterate through each cell and colour it according to the dictionary foreach (var column in dataGridView1) { foreach (var cell in column) { cell.Style = new DataGridViewStyle { BackColor = palette[cell.Value] }; } } foreach (var column in dataGridView25) { foreach (var cell in column) { cell.Style = new DataGridViewStyle { BackColor = palette[cell.Value] }; } } }

How to find the same values in different dataGrids?

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