@fern without touching the coding if you need to improve the performance. You should do as he said. Otherwise have to see the codings.

Did you read the headline of this article?. And real the answers well dude.

//Write this at your first form button click to open the second form

frmSelectSpecialCodes frm = new frmSelectSpecialCodes();
frm.ItemCode = dgvCart.SelectedRows[0].Cells[1].Value.ToString(); 
frm.ShowDialog();
dgvCart.SelectedRows[0].Cells[10].Value = frm._textBox1.ToString();

// second line - if you want to take any value to second form use this line
// forth line - the place where you want to assign the value and the value returning from the second form.

//In second form

public string _textBox1
       {
           get { return lblSpcCode.Text.Trim(); } *// the returning value*
       }

//write this code in gridview click event to get the cell value to textbox

DataGridViewRow dr = dgvSpcCodes.SelectedRows[0];
lblSpcCode.Text = dr.Cells[0].Value.ToString();
 this.Close();

//Once we click the row on datagridview getting the value of selected cell in to a textbox and returning the value to datagridview which is in form one without closing form one. like this you can pass the values between text boxes or datagridview to text box.

@lahirunc Post the sample code. I targeted the Beginners. So they can understand about the variable and these controls at once. Please Post your code brother. so readers get something from it.

string Isactive = chkBoxActive.Checked ? "TRUE" : "FALSE";

// Isactive is a variable which store value of the checkbox. If the check box is checked the variable value will be TRUE if not the variable Value will be FALSE - Call the variable name to save it into the database.

string radioButton1Value = radioButton1.Checked ? "TRUE" : "FALSE";

// radioButton1Value is a variable which store value of the radioButton. If the radioButton1 is ticked , the variable value will be TRUE if not the variable Value will be FALSE - Call the variable name to save it into the database.

Did you find the answer?

@fern without touching the coding if you need to improve the performance. You should do as he said. Otherwise have to see the codings.

Found the solution?