C# Merge two header columns into one column?

Question

I use C#[2013] winform. I drag and drop a datagridview and design it in two cols then I select value from database to it. I now want to merge two headers into one only. The headers already displayed by designing in properties. I want to merge the columns.

Col1   |  Col2 

001    |  John

I want to merge into one col as

  Title

  001    |   John

How to merge it?

Answer 1

What type of datasource are you binding to... You might just be better to add a new column to a datatable, or property to a class/structure that is a combined value of the two in question. Then just display that one.

If editing is done to any individual field, then update the JOINED column/property as needed.

Answer 2

In the class that you are using as the source for you DataGridView put a new property:

public string Title { get { return this.Col1 + " | " + this.Col2; }}

then delete those two columns and add one column for Title

Answer 3

Assuming you're talking about a DataGridView, there doesn't appear to be an easy built in-solution for this. Perhaps you could simply copy the data from one column to the other and split them with some sort of delimiter (perhaps a comma).

Modify then run following code after you fill your grid with data:

string data = string.Empty;
int indexCol0 = 0;
int indexCol1 = 1;
foreach (DataGridViewRow row in dataGridView1.Rows)
   row.Cells[indexCol0].Value = row.Cells[indexCol0].Value + ", " + row.Cells[indexCol1].Value;
dataGridView1.Columns.RemoveAt(indexCol1);