.NET Tutorials, Forums, Interview Questions And Answers
Welcome :Guest
 
Sign In
Register
 
Win Surprise Gifts!!!
Congratulations!!!


Top 5 Contributors of the Month
david stephan

Home >> Code Snippets >> ASP.NET Controls >> Post New Resource Bookmark and Share   

 Subscribe to Code Snippets

Retrive Main Header row and Sub Header from DataGridView using C#

Posted By:Deepika Haridas       Posted Date: September 29, 2009    Points: 10    Category: ASP.NET Controls    URL: http://www.dotnetspark.com  
 

Code to get Main Header row and its sub Header divided within the Datagridview Header. Use of CellPaint event


private void frmCheckGrid_Load(object sender, EventArgs e)
{
this.dataGridView1.Columns.Add("Colm1", "Win");
this.dataGridView1.Columns.Add("Colm2", "Loss");
this.dataGridView1.Columns.Add("Colm3", "Win");
this.dataGridView1.Columns.Add("Colm4", "Loss");
this.dataGridView1.Columns.Add("Colm5", "Win");
this.dataGridView1.Columns.Add("Colm6", "Loss");
this.dataGridView1.Columns.Add("Colm7", "Win");
this.dataGridView1.Columns.Add("Colm8", "Loss");
this.dataGridView1.Columns.Add("Colm9", "Win");
this.dataGridView1.Columns.Add("Colm10", "Loss");

for (int j = 0; j < this.dataGridView1.ColumnCount; j++)
{
this.dataGridView1.Columns[j].Width = 60;
}

this.dataGridView1.ColumnHeadersHeightSizeMode = DataGridViewColumnHeadersHeightSizeMode.EnableResizing;
this.dataGridView1.ColumnHeadersHeight = this.dataGridView1.ColumnHeadersHeight * 2;
this.dataGridView1.ColumnHeadersDefaultCellStyle.Alignment = DataGridViewContentAlignment.TopCenter;
this.dataGridView1.CellPainting += new DataGridViewCellPaintingEventHandler(dataGridView1_CellPainting);
this.dataGridView1.Paint += new PaintEventHandler(dataGridView1_Paint);
this.dataGridView1.Scroll += new ScrollEventHandler(dataGridView1_Scroll);
this.dataGridView1.ColumnWidthChanged += new DataGridViewColumnEventHandler(dataGridView1_ColumnWidthChanged);
}

void dataGridView1_ColumnWidthChanged(object sender, DataGridViewColumnEventArgs e)
{
Rectangle rtHeader = this.dataGridView1.DisplayRectangle;
rtHeader.Height = this.dataGridView1.ColumnHeadersHeight / 2;
this.dataGridView1.Invalidate(rtHeader);
}

void dataGridView1_Scroll(object sender, ScrollEventArgs e)
{
Rectangle rtHeader = this.dataGridView1.DisplayRectangle;
rtHeader.Height = this.dataGridView1.ColumnHeadersHeight / 2;
this.dataGridView1.Invalidate(rtHeader);
}

void dataGridView1_Paint(object sender, PaintEventArgs e)
{
string[] monthes = { "A", "B", "C", "D", "E" };
for (int j = 0; j < 10; )
{
Rectangle r1 = this.dataGridView1.GetCellDisplayRectangle(j, -1, true);
int w2 = this.dataGridView1.GetCellDisplayRectangle(j + 1, -1, true).Width;
r1.X += 1;
r1.Y += 25;
r1.Width = r1.Width + w2 - 2;
r1.Height = r1.Height / 2 - 2;
e.Graphics.FillRectangle(new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.BackColor), r1);
StringFormat format = new StringFormat();
format.Alignment = StringAlignment.Center;
format.LineAlignment = StringAlignment.Center;
e.Graphics.DrawString(monthes[j / 2],
this.dataGridView1.ColumnHeadersDefaultCellStyle.Font,
new SolidBrush(this.dataGridView1.ColumnHeadersDefaultCellStyle.ForeColor),
r1, format);
j += 2;
}
}

void dataGridView1_CellPainting(object sender, DataGridViewCellPaintingEventArgs e)
{
if (e.RowIndex == -1 && e.ColumnIndex > -1)
{
Rectangle r2 = e.CellBounds;
r2.Y += e.CellBounds.Height / 2;
r2.Height = e.CellBounds.Height / 2;
e.PaintBackground(r2, true);
e.PaintContent(r2);
e.Handled = true;
}
}


     

Further Readings:

Responses

No response found. Be the first to respond this post

Post Comment

You must Sign In To post reply
Find More code samples in C#, ASP.Net, Vb.Net and more Here

Hall of Fame    Twitter   Terms of Service    Privacy Policy    Contact Us    Archives   Tell A Friend