CheckedListBox与下拉框联动代码

private void yewubind(string id){//给业务类型下拉框绑定业务类型数据DataTable dtyewu = sb.SelectLast(id, 0);bool flag = false;foreach (Control con in panel1.Controls){if (con.Name == id){con.Visible = true;flag = true;if (dtyewu.Rows.Count > 0){}else{((CheckedListBox)con).DataSource = null;}}else{con.Visible = false;}}if (!flag){CheckedListBox clb_yewu = new CheckedListBox();clb_yewu.Name = id;clb_yewu.Visible = true;if (dtyewu.Rows.Count > 0){clb_yewu.DataSource = dtyewu;clb_yewu.DisplayMember = "name";clb_yewu.ValueMember = "id";}Size ss = new Size(200, 100);clb_yewu.Size = ss;panel1.Controls.Add(clb_yewu);}}private void cbb_jrh_SelectedIndexChanged(object sender, EventArgs e){yewubind(cbb_jrh.SelectedValue.ToString());}

combobox联动　

DataTable dtjrh = sb.SelectSyscode(2, true);if (dtjrh.Rows.Count > 0){cbb_jrh.DataSource = dtjrh;cbb_jrh.DisplayMember = "name";cbb_jrh.ValueMember = "id";this.cbb_jrh.SelectedIndex = 0;}yewubind(cbb_jrh.SelectedValue.ToString());

　　

获取选中项　

foreach (Control c in panel1.Controls){foreach (DataRowView dr in ((CheckedListBox)c).CheckedItems){yewuid += dr["id"].ToString() + ";";}}

　　最后清空

panel1.Controls.Clear();this.cbb_jrh.SelectedIndex = 0;

　　

转载于:https://www.cnblogs.com/paidaxing/p/3822005.html

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