How to disable or enable a link on datagridview in c #

Question

Hello ,

I will rest my publication because the answers that have been proposed does not meet my need

First of all I would like to tell you that

I develop a desktop application c #

I have a form that contains textbox and I have a datagridview and it contains three links

For example I want that when I filled the textbox1 the link 2 and link 3 will be disabled

Here is the code of my form

 

 

using System;

using System.Collections.Generic;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Linq;

using System.Text;

using System.Windows.Forms;

namespace gestion_attachements_decomptes

{

public partial class ajouter_decompte : Form

{

string num_marche;

string libelle_fournisseur;

public ajouter_decompte(string num_marche, string libelle_fournisseur)

{

InitializeComponent();

textBox1.Text = num_marche;

textBox2.Text = libelle_fournisseur;

}

private void ajouter_decompte_Load(object sender, EventArgs e)

{

panel2.Visible = false;

dataGridView2.AllowUserToAddRows = false;

DataGridViewLinkColumn link1 = new DataGridViewLinkColumn();

link1.HeaderText = ""; link1.Name = "links1";

link1.Text = "Décompte provisoire";

dataGridView2.Columns.Add(link1);

link1.UseColumnTextForLinkValue = true;

DataGridViewLinkColumn link2 = new DataGridViewLinkColumn();

link2.HeaderText = "";

link2.Name = "links2";

link2.Text = "Décompte partiel";

dataGridView2.Columns.Add(link2);

link2.UseColumnTextForLinkValue = true;

DataGridViewLinkColumn link3 = new DataGridViewLinkColumn();

link3.HeaderText = "";

link3.Name = "links3";

link3.Text = "Décompte définitif";

dataGridView2.Columns.Add(link3);

link3.UseColumnTextForLinkValue = true;

}

private void button1_Click(object sender, EventArgs e)

{

Program.cmd.CommandText =

"update attachement_marche set Id_decompte =

(select top 1 Id_decompte from decompte where Num_decompte ='" + textBox3.Text + "') where Num_attachement = '" + values.num_attachement + "'";

Program.cmd.ExecuteNonQuery();

MessageBox.Show("c'est eneregistré ");

panel2.Visible = true;

Program.cmd.CommandText = " select d.Num_decompte,d.Date_etablissement,d.Flag_dernier,d.Montant_ttc from decompte d WHERE Num_decompte ='" + textBox3.Text + "'";

Program.dr = Program.cmd.ExecuteReader();

DataTable dt = new DataTable();

dt.Load(Program.dr);

dataGridView2.DataSource = dt;

}

private void dataGridView2_CellMouseDown(object sender, DataGridViewCellMouseEventArgs e)

{

if (dataGridView2.SelectedRows.Count == 1)

{ if (dataGridView2.Rows[e.RowIndex].Cells[e.ColumnIndex].Value != null)

{ string cellval = dataGridView2.Rows[e.RowIndex].Cells[e.ColumnIndex].Value.ToString();

if (cellval.Contains("Décompte provisoire"))

{

etat_decompte_provisoire etd= new etat_decompte_provisoire(textBox1.Text, textBox2.Text);

etd.Show();

}

if (cellval.Contains("Décompte partiel"))

{

decompte_partiel dp = new decompte_partiel(textBox1.Text, textBox2.Text); dp.Show();

}

if (cellval.Contains("Décompte définitif"))

{

decompte_definitif dd = new decompte_definitif(textBox1.Text, textBox2.Text); dd.Show();

}

}

}

}

 

 

 

 

                                     And I would like to thank everyone who will help me