任意位置选择DataGrid的行

Posted on 2006-08-17 13:45 火草阅读(298) 评论(0) 编辑收藏举报

在DataGrid中要选种某一行必须要设置个选择列,下面介绍的方法可能在某些情况下有用

.aspx代码:

<%@ Page language="c#" Codebehind="WhList.aspx.cs" AutoEventWireup="false" Inherits="Logease.CarryOn.Web.airIn.bussOperation.WhList" %>

<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 4.0 Transitional//EN" >

<HTML>

<HEAD>

<title>WhList</title>

var returnValues; //回车返回值

var backColors; //目标行的背景色

var colors; //目标行的前景色

var chooseRow; //前次选中行

//双击返回

function coporationinfo(wh_no,warehouse_no)

{

try

{

var d=dialogArguments;

d.document.all("hid_wh_no").value = wh_no;

d.document.all("hid_warehouse_no").value = warehouse_no;

}

catch(e)

{

alert("操作错误，无法返回查询结果!");

}

window.close();

return false;

}

//确认返回

function doClick(str)

{

var obj_wh_no = document.getElementById("hid_returnwh_no");

var obj_warehouse_no = document.getElementById("hid_returnwarehouse_no");

if (obj_wh_no.value != "" && obj_warehouse_no.value != "")

coporationinfo(obj_wh_no.value,obj_warehouse_no.value);

else

alert("未选择");

return false;

}

function initRow(){

if (chooseRow == null){

chooseRow = document.getElementById("DataGrid1").rows[1];

if (chooseRow.cells[1] != null && chooseRow.cells[2] != null){

document.getElementById("hid_returnwh_no").value = chooseRow.cells[1].innerText;

document.getElementById("hid_returnwarehouse_no").value = chooseRow.cells[2].innerText;

}

else

document.getElementById("btn_cancel").focus();

}

//回车事件

function enterControl(){

if (event.keyCode == 13){

if(event.srcElement.name != "btn_cancel")

document.getElementById("btn_Submit").click();

else

document.getElementById("btn_cancel").click();

}

if(event.keyCode==38){ //方向键向上

}

if(event.keyCode==40){ //方向键向下

}

if(event.keyCode==37){ //方向键向左

document.getElementById("btn_Submit").focus();

}

if(event.keyCode==39){ //方向键向右

document.getElementById("btn_cancel").focus();

}

//设置原有色

function setColor(backColor,color)

{

backColors = backColor;

colors = color;

}

function setClickColor(obj,wh_no,warehouse_no){

if (chooseRow != null){

var index = chooseRow.rowIndex;

var rows = chooseRow.parentElement.rows;

var color1 = rows[index - 1].style.backgroundColor;

var color2 = rows[index + 1].style.backgroundColor;

var row = rows[index];

if (color1 == "" || color1 == "#ffffff" || color2 == "" || color2 == "#ffffff"){

row.style.backgroundColor = "#f5faf5";

row.color="blank";

}

if (color1 == "#f5faf5" || color2 == "#f5faf5"){

row.style.backgroundColor = "#ffffff";

row.color="blank";

}

chooseRow = obj;

document.getElementById("hid_returnwh_no").value = wh_no;

document.getElementById("hid_returnwarehouse_no").value = warehouse_no;

}

function doCancel()

{

window.close();

return false;

}

</script>

</HEAD>

<body onkeydown=enterControl() onload=initRow()

MS_POSITIONING="GridLayout">

<tr>

<asp:BoundColumn DataField="rownum" HeaderText="序号"></asp:BoundColumn>

<asp:BoundColumn DataField="wh_no" HeaderText="单证编号"></asp:BoundColumn>

<asp:BoundColumn DataField="warehouse_no" HeaderText="本仓编号"></asp:BoundColumn>

<asp:BoundColumn DataField="operation_id" HeaderText="平台编号"></asp:BoundColumn>

<asp:BoundColumn DataField="customer_to_name" HeaderText="客户"></asp:BoundColumn>

<asp:BoundColumn DataField="MBL" HeaderText="总单"></asp:BoundColumn>

<asp:BoundColumn DataField="hbl" HeaderText="分单"></asp:BoundColumn>

<asp:BoundColumn DataField="pieces" HeaderText="件数"></asp:BoundColumn>

<asp:BoundColumn DataField="weight" HeaderText="重量"></asp:BoundColumn>

</Columns>

</asp:datagrid></TD></TR>

<tr>

<td align=right><INPUT id=hid_returnwh_no type=hidden

runat="server"><INPUT id=hid_returnwarehouse_no

type=hidden runat="server"> <asp:button id=btn_Submit runat="server" Text="确认"></asp:Button>  

<asp:button id=btn_cancel Text="取消" Runat="server"></asp:button>  

</TD></TR></TABLE></FORM>

</body>

</HTML>

.cs代码:

using System;

using System.Collections;

using System.ComponentModel;

using System.Data;

using System.Drawing;

using System.Web;

using System.Web.SessionState;

using System.Web.UI;

using System.Web.UI.WebControls;

using System.Web.UI.HtmlControls;

namespace Logease.CarryOn.Web.airIn.bussOperation

{

/// <summary>

/// WhList 的摘要说明。

/// </summary>

public class WhList : System.Web.UI.Page

{

protected System.Web.UI.WebControls.DataGrid DataGrid1;

protected System.Web.UI.HtmlControls.HtmlInputHidden hid_returnwh_no;

protected System.Web.UI.HtmlControls.HtmlInputHidden hid_returnwarehouse_no;

protected System.Web.UI.WebControls.Button btn_Submit;

protected System.Web.UI.WebControls.Button btn_cancel;

private void Page_Load(object sender, System.EventArgs e)

{

// 在此处放置用户代码以初始化页面

if(!IsPostBack)

{

this.btn_Submit.Attributes.Add("onclick","return doClick();");

this.btn_cancel.Attributes.Add("onclick","return doCancel();");

this.initBindData();

}

Web 窗体设计器生成的代码

绑定表格数据

private void DataGrid1_ItemDataBound(object sender, System.Web.UI.WebControls.DataGridItemEventArgs e)

{

string ser_no = e.Item.Cells[0].Text;

try

{

if (ser_no != null && ser_no != "序号")

{

e.Item.Attributes.Add("Ondblclick", "javascript:coporationinfo('" + e.Item.Cells[1].Text + "','" + e.Item.Cells[2].Text + "')");

e.Item.Attributes.Add("Onclick", "setClickColor(this,'" + e.Item.Cells[1].Text + "','" + e.Item.Cells[2].Text + "');this.style.backgroundColor='#15B77E';this.style.color='white';this.style.cursor='hand';setColor(this.style.backgroundColor,this.style.color);");

e.Item.Attributes.Add("OnMouseOver", "setColor(this.style.backgroundColor,this.style.color);this.style.backgroundColor='#15B77E';this.style.color='white';this.style.cursor='hand';") ;

e.Item.Attributes.Add("OnMouseOut", "this.style.backgroundColor=backColors;this.style.color=colors") ;

}

catch

{}

}

确认事件

取消事件

private void DataGrid1_PageIndexChanged(object source, System.Web.UI.WebControls.DataGridPageChangedEventArgs e)

{

this.DataGrid1.DataSource = (DataTable)ViewState["ASNSource"];

this.DataGrid1.CurrentPageIndex = e.NewPageIndex;

this.DataGrid1.DataBind();

}

这个方法有一定的局限性,首先你在后台没办法直接通过DataGrid获取行了,其次如果DataGrid一多..........后面就不用说,不知道谁有更好的方法或想法.

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任意位置选择DataGrid的行