Traverse components of form C#

Question

Hello I have a table coming from the database, with several rows and columns. One of these columns is stored the address of the previously saved image. Now I need to go through all Picturebox and put in Imagelocation the address of that image. Oh, yes! Before I forget I have 10 Picturebox in the form. I’m using the following code:

foreach (Control item in this.Controls)  
{  
if (item is PictureBox)
{
item.Name.ToString();//Até aqui tudo certo, consigo ver nome dele, mas preciso pegar nome e a propriedade ImageLocation 
}

Someone has an idea?

Answer 1

You got this far without an answer. see how I solved my problem

//Primeiro percorri as colunas do datatable;
for (int i = 0; i < Tabela.Rows.Count; i++)
{
//Garanti que as células não estejam vazias
Celula = Tabela.Rows[i][0].ToString();
if (Celula != "")
{
//Usei um switch para analisar a variável i do for
switch (i)
{
case 0:
PictureBox1.ImageLocation = Tabela.Rows[i][0].ToString();
break;
case 1:
ptb2lugar.ImageLocation = Tabela.Rows[i]0].ToString();
break;
case2:
ptb3lugar.ImageLocation = Tabela.Rows[i][0].ToString();
break;
case 3:
PictureBox2.ImageLocation = Tabela.Rows[i][0].ToString();
break;
}
}
}

Answer 2

I’ll suggest you the following:

1. create Picturebox dynamically, instead of adding them one by one by the designer:

   public partial class Form1 : Form
   {
       private PictureBox[] pictures;
   
       public Form1()
       {
           InitializeComponent();
   
           // criando as 10 PictureBox de que necessita
           this.pictures = Enumerable.Range(1, 10)
               .Select(this.CriarPictureBox)
               .ToArray();
   
           // eu estou adicionando dentro de um FlowLayout, mas poderia ser no Form,
           // ou dentro de qualquer outro contêiner de sua escolha
           this.flowLayoutPanel1.Controls.AddRange(this.pictures);
       }
   
       private PictureBox CriarPictureBox(int i)
       {
           return new PictureBox
           {
               Name = "pic" + i,
               Location = new Point(0, 0),
               Size = new Size(100, 100),
               BackColor = Color.Black,
               Visible = true,
           };
       }
   }
   

2. with the Picturebox in an array, you can now refer to them using a numeric index, within the loading loop that reads the Datatable. Example:

   private void CarregarImagens(DataTable tabela, int primeiraRow)
   {
       for (int itPic = 0; itPic < this.pictures.Length; itPic++)
       {
           this.pictures[itPic].ImageLocation =
               tabela.Rows[itPic + primeiraRow]["NomeColuna"].ToString();
       }
   }