Focusing into a control by navigation from other form in c#

Question

Sir, I need your help to a navigation problem. This is my first step:- When I click on the ' + ' button, a new form will popup. Here that form:- I want to return and focus to the comboBox control containing ' +' control immediately after saving the company. How this possible in c#?, please help me.

Bineesh Viswanath · Answer

Hi Nathan, Try this. Put this code in the form where you navigate into the frmCompany frmCompany frm=new frmCompany(); frm.ShowDialog(); // also call the function to load the company in the comboBox. Then in the form frmCompany- // in the Button Save_Click //after save function code, form1 frm=new form1(); frm.show(); Please mark as correct if it correct.

Nathan R · Answer

Thank you Mr.Bineesh VP, the code by you is correct.

Vulpes · Answer

Try something like this which assumes that the combobox (cboCompanyName say) is not data-bound: // on main form private void btnPlus_Click(object sender, EventArgs e) { frmCompany fc = Application.OpenForms["frmCompany"] as frmCompany; if (fc == null) { fc = new frmCompany(cboCompanyName); fc.Show(); } else { fc.Focus(); } } // on frmCompany private ComboBox cbo; public frmCompany( ComboBox cbo ) // make changes to constructor { InitializeComponent(); this.cbo = cbo; } private void btnSave_Click(object sender, EventArgs e) { if (txtCompanyName.Text == "") { MessageBox.Show("Company name must be completed before can save"); txtCompanyName.Focus(); return; } if (cbo.Items.Contains(txtCompanyName.Text)) { MessageBox.Show("Company name already exists in combobox"); txtCompanyName.Focus(); return; } cbo.Items.Add(txtCompanyName.Text); cbo.SelectedIndex = cbo.Items.Count - 1; cbo.Focus(); } If the combobox is data-bound, then to add an item you'll need to change the underlying data source and rebind.