window form ,datagrid view

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I have a Form which is calculating and displaying data in TexBoxes which I'm using for further calculation, now on Save Button Click I have this written code:

C#

DataTable dt = new DataTable();
DataRow drow  = dt.NewRow();
DataColumn dc = new DataColumn("X", typeof(System.String));
DataColumn dc1 = new DataColumn("Y", typeof(System.String));
DataColumn dc2 = new DataColumn("Z", typeof(System.String));
dt.Columns.Add(dc);
dt.Columns.Add(dc1);
dt.Columns.Add(dc2);
string[] rows = { "" + textBox10.Text, "" + textBox11.Text, "" + textBox12.Text };
dt.Rows.Add(rows);
dataGridView1.DataSource = dt;

It is working fine except that I want on save each time value gets saved to new row without overwriting the previous like:
r1 11 111 111
r2 22 11 1111
...
etc

Posted 25-Jul-10 21:25pm

shweta134

Updated 26-Jul-10 3:57am

Toli Cuturicu

v3

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nagendrathecoder · Answer 1 · 2010-07-25T21:30:00

Solution 1

For that you have to "create new row on same table" on each save click.
Here, you are creating new table on every click, new table will always have only 1 record.
Create table only once and then add rows to it on every click. :)

Posted 25-Jul-10 21:30pm

nagendrathecoder

Sunasara Imdadhusen · Answer 2 · 2010-07-25T21:36:00

Hi,

I think you had written whole code inside Save button click, you should have to define code on following manner

1. define this variable gollbally

DataTable dt;

2. in form_Load event

dt = new DataTable();<br/>
DataColumn dc = new DataColumn("X", typeof(System.String));

DataColumn dc1 = new DataColumn("Y", typeof(System.String));

DataColumn dc2 = new DataColumn("Z", typeof(System.String));

dt.Columns.Add(dc);

dt.Columns.Add(dc1);

dt.Columns.Add(dc2);

3. in Save button click

DataRow drow = dt.NewRow();

C#

string[] rows = { "" + textBox10.Text, "" + textBox11.Text, "" + textBox12.Text };
dt.Rows.Add(rows);

BindGrd();
4. BindGrid()

public void dataGridView1.DataSource = dt;