DaniWeb Forum Index > Software Development > C#

changing cell color datagridvew c#

Please support our C# advertiser: Programming Forums - DaniWeb Sister Site

•

Join Date: Nov 2007

Posts: 146

Reputation: emilio is an unknown quantity at this point

Solved Threads: 0

emilio

Offline

Junior Poster

changing cell color datagridvew c#

Dec 8th, 2008

hi
i'm using a datagrid view control which get's his datasource from a dataset control.

my code is:

 Help with Code Tags 
 c# Syntax (Toggle Plain Text) 
dataGrid = new DataGridView();
dataGrid.DataSource = dataSet.Tables["Vertexes"];
this.Controls.Add(dataGrid);
dataGrid = new DataGridView();
dataGrid.DataSource = dataSet.Tables["Vertexes"];
this.Controls.Add(dataGrid);

the datagridview in shown fine.
the problem is that when i try to cahnge cells color like this:

 Help with Code Tags 
 c# Syntax (Toggle Plain Text) 
for (int x = 0; x < dataGrid.Rows.Count; x++)
            {
                for (int y = 0; y < dataGrid.Rows[x].Cells.Count; y++)
                {
                    if (x == y)
                    {
                        dataGrid.Rows[x].Cells[y].Style.BackColor =
                        System.Drawing.Color.Red;
                    }
                }
            }
for (int x = 0; x < dataGrid.Rows.Count; x++)
            {
                for (int y = 0; y < dataGrid.Rows[x].Cells.Count; y++)
                {
                    if (x == y)
                    {
                        dataGrid.Rows[x].Cells[y].Style.BackColor =
                        System.Drawing.Color.Red;
                    }
                }
            }

it doest eners to the 'for' loop. i can see in debug that the datagridvew rows and columns controls are empty.

•

Join Date: Aug 2008

Posts: 1,735

Reputation: LizR has a spectacular aura about

Solved Threads: 186

LizR

Offline

Posting Virtuoso

Re: changing cell color datagridvew c#

Dec 8th, 2008

Depends I guess a little on when that code runs (which you havent shown) or, why you dont just use the draw method - for which search this forum ther are a number of examples

Did I just hear "You gotta help us, Doc. We've tried nothin' and we're all out of ideas" ? Is this you? Dont let this be you! I will put in as much effort as you seem to.

•

Join Date: Jul 2008

Posts: 66

Reputation: Renukavani is an unknown quantity at this point

Solved Threads: 6

Renukavani Renukavani is offline

Offline

Junior Poster in Training

Re: changing cell color datagridvew c#

Dec 9th, 2008

hi
this s my code working fine. i think r u creating dynamic datagridview . insead of controlname ur using datagrid may be. so chk it

•

private void Form1_Load(object sender, EventArgs e)
{

dataGridView1.Rows.Add(5);
dataGridView1.CurrentCell.Selected = false;
for (int i = 0; i < dataGridView1.Rows.Count; i++)
{
for (int j = 0; j < dataGridView1.Rows[i].Cells.Count; j++)//dataGridView1.Columns.Count; j++)
{
// dataGridView1.Rows[i].Cells[j].Value = i + 5;
if (i == j)
dataGridView1.Rows[i].Cells[j].Style.BackColor = Color.Aqua;
}
}
}

signOut

•

Join Date: Oct 2008

Posts: 32

Reputation: reena12 is an unknown quantity at this point

Solved Threads: 4

reena12

Offline

Light Poster

Re: changing cell color datagridvew c#

Dec 9th, 2008

Hi,

dataGrid.DataBind() statement is missing.

dataGrid = new DataGridView();
this.Controls.Add(dataGrid);

dataGrid.DataSource = dataSet.Tables["Vertexes"];
dataGrid.DataBind();

Reena Mehta

Remember to click on Mark as answer on the post that helped

http://www.indianic.com