摘要:DropDownList 連動
第一步驟：設定DropDownList的AutoPostBack屬性為True是為了當有觸發事件時可以PostBack到Server
第二步驟：將UpdatePanel的UpdateMode屬性設定為Conditional，當Triggers定義的控制項及事件觸發才會進行更新的動作
第三步驟：需要設定Triggers，定義好哪個控制項進行哪種事件的觸發進行Update的動作
.aspx的Source Code
<%@ Page Language="C#" AutoEventWireup="true" CodeBehind="AddJob.aspx.cs" Inherits="Job_Web.AddJob" %>
<!DOCTYPE html>
<html xmlns="http://www.w3.org/1999/xhtml">
<head runat="server">
<meta http-equiv="Content-Type" content="text/html; charset=utf-8" />
<title></title>
<style type="text/css">
#css_table {
display: table;
}
.css_tr {
display: table-row;
}
.css_td {
display: table-cell;
}
</style>
</head>
<body>
<a href="JobList.aspx">回Job List</a>
<form runat="server">
<div id="css_table">
<div class="css_tr">
<div class="css_td">
<asp:Label Text="JOB_NO" runat="server" />
</div>
<div class="css_td">
<asp:DropDownList ID="ddlJobNo" runat="server" DataTextField="JOB_NAME" DataValueField="JOB_NO" AutoPostBack="true" OnSelectedIndexChanged="ddlJobNo_SelectedIndexChanged" />
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="SERVICE_ID" runat="server"></asp:Label>
</div>
<div class="css_td">
<asp:ScriptManager ID="ScriptManager1" runat="server"></asp:ScriptManager>
<asp:UpdatePanel ID="UpdatePanel1" runat="server" UpdateMode="Conditional" ChildrenAsTriggers="false">
<ContentTemplate>
<asp:DropDownList ID="ddlService" runat="server" DataValueField="SERVICE_ID" DataTextField="SERVICE_ID" />
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="ddlJobNo" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="EVN_ID" runat="server" />
</div>
<div class="css_td">
<asp:DropDownList ID="ddlEvnID" runat="server">
<asp:ListItem Value="1">dev</asp:ListItem>
<asp:ListItem Value="2">stage</asp:ListItem>
<asp:ListItem Value="3">product</asp:ListItem>
</asp:DropDownList>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="SVALUE1" runat="server"></asp:Label>
</div>
<div class="css_td">
<asp:TextBox ID="txtSValue1" runat="server"></asp:TextBox>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="SVALUE2" runat="server"></asp:Label>
</div>
<div class="css_td">
<asp:TextBox ID="txtSValue2" runat="server"></asp:TextBox>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="NVALUE1" runat="server"></asp:Label>
</div>
<div class="css_td">
<asp:TextBox ID="txtNValue1" runat="server"></asp:TextBox>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Label Text="NVALUE2" runat="server"></asp:Label>
</div>
<div class="css_td">
<asp:TextBox ID="txtNValue2" runat="server"></asp:TextBox>
</div>
</div>
<div class="css_tr">
<div class="css_td">
<asp:Button ID="btnSave" Text="儲存" runat="server" OnClick="btnSave_Click" />
</div>
</div>
</div>
</form>
</body>
</html>
.cs語法
public partial class AddJob : System.Web.UI.Page
{
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
{
this.SetDDLJobItemSource();
this.SetDDLServiceSource(this.ddlJobNo.SelectedValue);
}
}
protected void btnSave_Click(object sender, EventArgs e)
{
Service.IJobService m_client = new Service.JobServiceClient();
JobInfo m_job = new JobInfo();
m_job.JobNo = this.ddlJobNo.SelectedValue;
m_job.ServiceID = Guid.Parse(this.ddlService.SelectedValue);
m_job.EvnID = int.Parse(this.ddlEvnID.SelectedValue);
m_job.NValue1 = string.IsNullOrEmpty(this.txtNValue1.Text.Trim()) ? 0 : int.Parse(this.txtNValue1.Text.Trim());
m_job.NValue2 = string.IsNullOrEmpty(this.txtNValue2.Text.Trim()) ? 0 : int.Parse(this.txtNValue1.Text.Trim());
m_job.SValue1 = this.txtSValue1.Text;
m_job.SValue2 = this.txtSValue2.Text;
m_job.StatusFlag = 1;
m_job.EmplNO = "test";
string[] m_msg = m_client.CreateJob(m_job);
if (m_msg[0].Equals("00"))
{
Response.Write(string.Format(@"", "建立成功", "Job ID ==> " + m_msg[2]));
}
}
private DataTable GetJobItem()
{
T08S01_BL m_T08S01_BL = new T08S01_BL();
return m_T08S01_BL.GetJobItem();
}
private void SetDDLJobItemSource()
{
this.ddlJobNo.DataSource = this.GetJobItem();
this.ddlJobNo.DataBind();
}
private DataTable GetService(string pJobNO)
{
T08S01_BL m_T08S01_BL = new T08S01_BL();
DataTable m_table = m_T08S01_BL.GetService(pJobNO);
if (m_table != null)
{
DataRow m_row = m_table.NewRow();
m_row[0] = "00000000-0000-0000-0000-000000000000";
m_table.Rows.InsertAt(m_row, 0);
}
return m_table;
}
private void SetDDLServiceSource(string pJobNO)
{
this.ddlService.DataSource = this.GetService(pJobNO);
this.ddlService.DataBind();
}
protected void ddlJobNo_SelectedIndexChanged(object sender, EventArgs e)
{
if (this.ddlJobNo.SelectedIndex != -1)
this.SetDDLServiceSource(this.ddlJobNo.SelectedValue);
}
}