3
動態分組框中我想動態地創建分組框中這些GB將在複選框上的選擇創建。如何創建C＃
意味着我有5個複選框，如果我現在選擇第1塊CB然後1 GB與其他一些動態複選框，應建立，如果我選擇第3檢查然後又GB應符合幾個其他複選框被創建。 爲了這個，我這個代碼whee我能創造這已經是在設計時創建的固定組合框中動態複選框嘗試。
我的情況是 - 5個分行有多個批次。現在用戶將從動態複選框中選擇分支，並在此基礎上，每個分支將在分組框中顯示分組。 分支1店2店3 Branch4 Branch5如果用戶選擇第三和第五分公司然後GB1將展示店3的批次和GB2應當出示Branch5的批次 這裏是代碼 -
private void RO_SelectedIndexChanged(object sender, EventArgs e)
{
groupBox1.Controls.Clear();
String m = RO.SelectedItem.ToString();
Console.WriteLine(m);
aCommand2 = new OleDbCommand("select * from branch_tbl,region_tbl where branch_tbl.region_id=region_tbl.region_id and region_tbl.region_name LIKE '"+m +"'", main_connection);
aAdapter2 = new OleDbDataAdapter(aCommand2);
ds2 = new DataSet();
aAdapter2.Fill(ds2, "app_info");
ds2.Tables[0].Constraints.Add("pk_bno", ds2.Tables[0].Columns[0], true);
int bran_count = ds2.Tables[0].Rows.Count;
Console.WriteLine(bran_count);
checkBox = new System.Windows.Forms.CheckBox[bran_count];
for (int i = 0; i < bran_count; ++i)
{
checkBox[i] = new CheckBox();
checkBox[i].Name = "radio" + Convert.ToString(i);
checkBox[i].Text = ds2.Tables[0].Rows[i][2].ToString();
checkBox[i].Location = new System.Drawing.Point(125 * i, 15);
groupBox1.Controls.Add(checkBox[i]);
checkBox[i].CheckStateChanged += new System.EventHandler(CheckBoxCheckedChanged);
}
}
int count = 1;
int position = 1;
//Code for handling event when branch check box is selected or unselected
private void CheckBoxCheckedChanged(object sender, EventArgs e)
{
CheckBox c = (CheckBox)sender;
//Label myLabel;
String str = null;
if (c.Checked == true)
{
str = c.Text;
aCommand3 = new OleDbCommand("select * from batch_tbl where batch_branch LIKE '" + str + "'", main_connection);
aAdapter3 = new OleDbDataAdapter(aCommand3);
ds3 = new DataSet();
aAdapter3.Fill(ds3, "app_info");
ds3.Tables[0].Constraints.Add("pk_bno", ds3.Tables[0].Columns[0], true);
int batch_count = ds3.Tables[0].Rows.Count;
//filling the groupbox with batch code by generating dynamic checkboxes
for (int i = 0; i < batch_count; ++i)
{
checkBox[i] = new CheckBox();
checkBox[i].Name = "check" + Convert.ToString(i);
checkBox[i].Text = ds3.Tables[0].Rows[i][1].ToString();
Console.WriteLine(checkBox[i].Text);
checkBox[i].Location = new System.Drawing.Point(104*position, 30);
groupBox2.Text = c.Text;
groupBox2.Controls.Add(checkBox[i]);
position++;
count++;
}
}
else
{
count--;
this.Controls.RemoveByKey("lbl" + c.Name);
this.Update();
}
}
這段代碼很不錯，但我不知道有多少Branch CB將使用select，那麼在設計時如何爲每個選定分支放置GB，因爲他需要在運行時選擇Branch CheckBoxes來生成GB。