Foreach 循环未达到比第一个面板项目更远的范围

Question

在我看来，我的 foreach 循环没有到达我的第二个面板，或者有什么东西让它跳过了循环中的项目。

这是面板和循环的创建（我知道 SQL 容易受到注入攻击，但为了缩短问题我只使用了 SQL）：

这是为产品中的每个产品创建的 table:

Label lbName = new Label();
lbName.Text = name + "\n" + row[7].ToString();
lbName.Height = 40;
lbName.Width = 150;
lbName.Name = name + row[7].ToString();
lbName.Location = new Point(ptX, ptY);
pt.Controls.Add(lbName);

Label lbID = new Label();
lbID.Text = row[0].ToString();
lbID.Height = 40;
lbID.Width = 150;
lbID.Name = "ID" + name + row[7].ToString();
lbID.Location = new Point(ptX, ptY);
lbID.Visible = false;
pt.Controls.Add(lbID);

TextBox txtStockCount = new TextBox();
txtStockCount.Text = "0";
txtStockCount.Height = 40;
txtStockCount.Width = 100;
txtStockCount.Name = "txtTS" + name + row[7].ToString();
txtStockCount.Location = new Point(ptX + 150, ptY);
txtStockCount.GotFocus += txtStockCount_GotFocus;
txtStockCount.KeyPress += txtStockCount_KeyPress;
txtStockCount.LostFocus += txtStockCount_LostFocus;
pt.Controls.Add(txtStockCount);

TextBox txtBroken = new TextBox();
txtBroken.Text = "0";
txtBroken.Height = 40;
txtBroken.Width = 100;
txtBroken.Name = "txtTB" + name + row[7].ToString();
txtBroken.Location = new Point(ptX + 300, ptY);
txtBroken.GotFocus += txtStockCount_GotFocus;
txtBroken.KeyPress += txtStockCount_KeyPress;
txtBroken.LostFocus += txtStockCount_LostFocus;
pt.Controls.Add(txtBroken);

TextBox txtRecieve = new TextBox();
txtRecieve.Text = "0";
txtRecieve.Height = 40;
txtRecieve.Width = 100;
txtRecieve.Name = "txtTR" + name + row[7].ToString();
txtRecieve.Location = new Point(ptX + 450, ptY);
txtRecieve.GotFocus += txtStockCount_GotFocus;
txtRecieve.KeyPress += txtStockCount_KeyPress;
txtRecieve.LostFocus += txtStockCount_LostFocus;
pt.Controls.Add(txtRecieve);

Label lbDifference = new Label();
lbDifference.Text = " 0 ";
lbDifference.Height = 40;
lbDifference.Width = 150;
lbDifference.Name = "lblDiff" + name + row[7].ToString();
                    lbDifference.Location = new Point(ptX + 600, ptY);
pt.Controls.Add(lbDifference);

Button btnConfirm = new Button();
btnConfirm.Text = "Confirm";
btnConfirm.Height = 30;
btnConfirm.Width = 80;
btnConfirm.Name = "btnConfirm" + name + row[7].ToString();
                    btnConfirm.Location = new Point(ptX + 750, ptY);
                    btnConfirm.Click += btnConfirm_Click;
pt.Controls.Add(btnConfirm);

以及阅读面板以从文本框中更新数据库：

private void txtStockCount_LostFocus(object sender, EventArgs e)
{
        TextBox txtB = (sender as TextBox);
        string name = txtB.Name.Remove(0,5);
        string prodID = "";
        string QtyToday = "";
        string QtyBD = "";
        string QtyRev = "";
        string table = "";

        foreach (Panel p in pnls)
        {
            IEnumerable<Label> labels = p.Controls.OfType<Label>();
            foreach (Label label in labels)
            {
                string Compare = label.Name.Remove(0, 2);
                if (name == Compare)
                {
                    prodID = label.Text;
                    if (Regex.IsMatch(Compare, @"^[a-hA-H]"))
                    {
                        table = "ProductHistoryAH";
                    }
                    else if (Regex.IsMatch(Compare, @"^[i-qI-Q]"))
                    {
                        table = "ProductHistoryIQ";
                    }
                    else if (Regex.IsMatch(Compare, @"^[r-zR-Z]"))
                    {
                        table = "ProductHistoryRZ";
                    }
                }
            }

            string sql = "Select * From Product WHERE ProdID = '" + prodID + "'";
            DataTable dtP = db.GetDataTable(sql);

            IEnumerable<TextBox> textBoxes = p.Controls.OfType<TextBox>();
            foreach (TextBox textBox in textBoxes)
            {
                string name1 = textBox.Name.Remove(0, 5);
                label2.Text = name1;
                if (name == name1)
                {
                    if (textBox.Name == "txtTS" + dtP.Rows[0][1].ToString() + dtP.Rows[0][7].ToString())
                    {
                        QtyToday = textBox.Text;
                    }

                    if (textBox.Name == "txtTB" + dtP.Rows[0][1].ToString() + dtP.Rows[0][7].ToString())
                    {
                        QtyBD = textBox.Text;
                    }

                    if (textBox.Name == "txtTR" + dtP.Rows[0][1].ToString() + dtP.Rows[0][7].ToString())
                    {
                        QtyRev = textBox.Text;
                    }
                }
            }                

            string sql1 = "Select * From " + table + " WHERE ProdID = '" + prodID + "' AND ProdHDate = '" + DateTime.Today.Date.ToShortDateString() + "'";
            DataTable dt = db.GetDataTable(sql1);                

            if (dt.Rows.Count == 0)
            {
                dbh.addnewstockhistory(ph);

            }
            else if (dt.Rows.Count > 0)
            {                    
                dbh.updatestockhistory(ph);
            }

        }            
}

一切正常 100%，它可以轻松插入和更新数据，第一个面板但其他面板上的其他文本框不起作用。

错误出在foreach panel loop，foreach loops inside the panel loop。它说在字符串 sql1 的位置附近存在语法错误。但我不明白的是它适用于第一个面板但不适用于其他面板并且它确实有 prodID，我知道这是因为我将语句放在标签中只是为了看看它的外观。

请帮忙。需要什么就问什么。

Answer 1

我想我解决了。我所要做的就是检查面板是否是托管控件的面板，方法是检查面板是否是按钮的父级并且它有效。

if(p == btn.Parent)
{
    //Do my stuff
}

在我的 foreach 面板循环中。

Foreach 循环未达到比第一个面板项目更远的范围

Foreach loop not reaching going further than first panel items

c#

sqlite

foreach

panel

winforms