在GridView上刷新數據DropDownList選擇索引變化

我有ASP網頁連接GridView1連接到SqlDataSource1和DropDownList1這對SqlDataSource1 SQL腳本產生影響。在GridView上刷新數據DropDownList選擇索引變化

<%@ Page Title="" Language="C#" MasterPageFile="~/Site.Master" AutoEventWireup="true" CodeBehind="terminalLog.aspx.cs" Inherits="_2013web.terminalLog" %> 
<asp:Content ID="Content1" ContentPlaceHolderID="MainContent" runat="server"> 
    <asp:DropDownList ID="DropDownList1" runat="server" DataSourceID="SqlDataSource2" DataTextField="Id" DataValueField="Id" OnSelectedIndexChanged="DropDownList1_SelectedIndexChanged" AutoPostBack="True" Height="95px" OnLoad="DropDownList1_Load" OnTextChanged="DropDownList1_TextChanged" Width="481px"> 
    </asp:DropDownList> 
    <asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:logsConnectionString1 %>" SelectCommand="SELECT [ClientID], [Msg], [LogLevel], [Date] FROM [logs] WHERE ([ClientID] = @ClientID) ORDER BY [Date]"> 
     <SelectParameters> 
      <asp:ControlParameter ControlID="DropDownList1" DefaultValue="80" Name="ClientID" PropertyName="SelectedValue" Type="Int32" /> 
     </SelectParameters> 
    </asp:SqlDataSource> 
    <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="SqlDataSource1" Width="2104px"> 
     <Columns> 
      <asp:BoundField DataField="ClientID" HeaderText="ClientID" SortExpression="ClientID" /> 
      <asp:BoundField DataField="Msg" HeaderText="Msg" SortExpression="Msg" /> 
      <asp:BoundField DataField="LogLevel" HeaderText="LogLevel" SortExpression="LogLevel" /> 
      <asp:BoundField DataField="Date" HeaderText="Date" SortExpression="Date" /> 
     </Columns> 
    </asp:GridView> 
    <asp:SqlDataSource ID="SqlDataSource2" runat="server" ConnectionString="<%$ ConnectionStrings:logsConnectionString1 %>" SelectCommand="SELECT [Id] FROM [clients] ORDER BY [Id]"></asp:SqlDataSource> 
</asp:Content>

我需要在選擇DropDownList1新的價值，以顯示新的數據。

我想我需要的東西，在那裏寫：

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) 
{ 
    SqlDataSource1.Update(); 
}

SqlDataSource1.Update();沒有幫助。

DropDownList1_SelectedIndexChanged應該執行什麼？

來源

2015-03-03 vico

GridView1.DataBind（）如果你想刷新網格。 – 2015-03-03 12:06:11

'DropDownList1'連線到'SqlDatasource1'的控制參數和GridView屬性：' fnostro 2015-03-03 21:58:16

沒有也沒有必要寫任何代碼，根據您的問題，您DropDownList1是True當選定值改變你的GridView將自動更新AutoPostBack。

來源

2015-03-03 12:12:31 Aria

protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e) 
{ 
    GridView1.DataBind(); 
}

來源

2015-03-03 12:08:58

在GridView上刷新數據DropDownList選擇索引變化

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