两个listbox选定左右增加选项

1，通过双击左边listbox选项增加到右边的listbox,经过测试,已经成功

protected void Page_Load(object sender, EventArgs e) { if (!IsPostBack) { if (!Page.IsStartupScriptRegistered("lstCarLeft")) { ListBox_DblClick("lstCarLeft", Page, lstCarLeft, "lstCarLeft", "lstCarRight"); } if (!Page.IsStartupScriptRegistered("lstCarRight")) { ListBox_DblClick("lstCarRight", Page, lstCarRight, "lstCarRight", "lstCarLeft"); } } } public void ListBox_DblClick(string Key, Page page, System.Web.UI.WebControls.WebControl webcontrol, string RemoveListBox, string AddListBox) { RemoveListBox = "document.getElementById('" + RemoveListBox + "')"; AddListBox = "document.getElementById('" + AddListBox+"')"; string mflistboxjs = "<mce:script language=javascript><!--function change(RemoveListBox,AddListBox)"; mflistboxjs += "{"; mflistboxjs += "var addOption=document.createElement('option'); /n"; mflistboxjs += "var index1; /n"; mflistboxjs += "if(RemoveListBox.length==0)return(false);/n"; mflistboxjs += "index1=RemoveListBox.selectedIndex; /n "; mflistboxjs += "if(index1<0)return(false);/n"; mflistboxjs += "addOption.text=RemoveListBox.options(index1).text; /n"; mflistboxjs += "addOption.value=RemoveListBox.value; /n"; mflistboxjs += "AddListBox.add(addOption); /n"; mflistboxjs += "RemoveListBox.remove (index1) /n"; mflistboxjs += "}"; mflistboxjs += "// --></mce:script>"; page.RegisterStartupScript(Key, mflistboxjs); webcontrol.Attributes.Add("onDblClick", "change(" + RemoveListBox + "," + AddListBox + ");"); }  

 

 

2.在两个listbox中放两个左右的箭头.通过点击增加或删除,下面的方法比较好,而且可以在左右移动的时候,统计listbox里面的数据

下面顺便统计将listbox里面的金额进行了增加..

protected void imgBtnAdd_Click(object sender, ImageClickEventArgs e) { decimal sum = Convert.ToDecimal(ViewState["Sum"]); if (lstCarLeft.SelectedItem == null) { ScriptManager.RegisterStartupScript(this, GetType(), "84", "alert('请在左边选择车牌号码');", true); return; } for (int i = 0; i < lstCarLeft.Items.Count; i++) { if (lstCarLeft.Items[i].Selected) { ListItem li = new ListItem(); li.Text = lstCarLeft.SelectedItem.Text; li.Value = lstCarLeft.SelectedValue; string[] strValue = Spit(li.Value, "*"); sum += int.Parse(strValue[1]); lstCarRight.Items.Add(li); lstCarLeft.Items.Remove(lstCarLeft.SelectedItem); } ViewState["Sum"] = sum; } txt_JSJE.Text = ViewState["Sum"].ToString(); txt_YSJE.Text = ViewState["Sum"].ToString(); } /// <summary> /// 移除右边的listbox /// </summary> /// <param name="sender"></param> /// <param name="e"></param> protected void imgBtnRemove_Click(object sender, ImageClickEventArgs e) { decimal sum = Convert.ToDecimal(ViewState["Sum"]); if (lstCarRight.SelectedItem == null) { ScriptManager.RegisterStartupScript(this, GetType(), "84", "alert('请在右边选择车牌号码');", true); return; } for (int i = 0; i < lstCarRight.Items.Count; i++) { if (lstCarRight.Items[i].Selected) { ListItem li = new ListItem(); li.Text = lstCarRight.SelectedItem.Text; li.Value = lstCarRight.SelectedValue; lstCarLeft.Items.Add(li); string[] strValue = Spit(li.Value, "*"); sum -= Convert.ToDecimal(strValue[1]); lstCarRight.Items.Remove(lstCarRight.SelectedItem); } ViewState["Sum"] = sum; } txt_JSJE.Text = ViewState["Sum"].ToString(); txt_YSJE.Text = ViewState["Sum"].ToString(); }