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Dec 8th, 2008

changing cell color datagridvew c#

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

my code is:

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:

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.

emilio

Reputation Points: 20

Solved Threads: 0

Junior Poster

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162 posts
since Nov 2007

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Dec 8th, 2008

Re: changing cell color datagridvew c#

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

LizR

Reputation Points: 196

Solved Threads: 190

Posting Virtuoso

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1,735 posts
since Aug 2008

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Dec 9th, 2008

Re: changing cell color datagridvew c#

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

Quote ...

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;
}
}
}

Renukavani

Reputation Points: 10

Solved Threads: 23

Junior Poster

Offline

123 posts
since Jul 2008

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Dec 9th, 2008

Re: changing cell color datagridvew c#

Hi,

dataGrid.DataBind() statement is missing.

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

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

reena12

Reputation Points: 12

Solved Threads: 4

Light Poster

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32 posts
since Oct 2008

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