DataGrid.AlternatingItemStyle 屬性

參考

定義

命名空間:: System.Web.UI.WebControls

組件:: System.Web.dll

重要

部分資訊涉及發行前產品，在發行之前可能會有大幅修改。 Microsoft 對此處提供的資訊，不做任何明確或隱含的瑕疵擔保。

取得 DataGrid 控制項中替代項目的樣式屬性。

public:
 virtual property System::Web::UI::WebControls::TableItemStyle ^ AlternatingItemStyle { System::Web::UI::WebControls::TableItemStyle ^ get(); };

[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)]
public virtual System.Web.UI.WebControls.TableItemStyle AlternatingItemStyle { get; }

[<System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)>]
member this.AlternatingItemStyle : System.Web.UI.WebControls.TableItemStyle

Public Overridable ReadOnly Property AlternatingItemStyle As TableItemStyle

屬性值

TableItemStyle

TableItemStyle 物件，表示 DataGrid 中替代項目的樣式屬性。預設值為空白的 TableItemStyle 物件。

屬性: PersistenceModeAttribute

範例

下列程式碼範例示範如何使用 AlternatingItemStyle 屬性來指定控制項中 DataGrid 替代專案的不同背景色彩。


<%@ Page Language="C#" %>

<%@ Import Namespace="System.Data" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
   <script runat="server">
 
      ICollection CreateDataSource() 
      {
         DataTable dt = new DataTable();
         DataRow dr;
 
         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
         dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
         dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));
 
         for (int i = 0; i <= 8; i++) 
         {
            dr = dt.NewRow();
 
            dr[0] = i;
            dr[1] = "Item " + i.ToString();
            dr[2] = 1.23 * (i + 1);
 
            dt.Rows.Add(dr);
         }
 
         DataView dv = new DataView(dt);
         return dv;
      }
 
      void Page_Load(Object sender, EventArgs e) 
      {
 
         if (!IsPostBack) 
         {
            // Load this data only once.
            ItemsGrid.DataSource= CreateDataSource();
            ItemsGrid.DataBind();
         }
      }
 
   </script>
 
<head runat="server">
    <title>DataGrid AlternatingItemStyle Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>DataGrid AlternatingItemStyle Example</h3>
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="false"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <ItemStyle BackColor="Yellow">
         </ItemStyle>

         <AlternatingItemStyle BackColor="LightGreen">
         </AlternatingItemStyle>

         <Columns>

            <asp:BoundColumn
                 HeaderText="Number" 
                 DataField="IntegerValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Description" 
                 DataField="StringValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Price" 
                 DataField="CurrencyValue" 
                 DataFormatString="{0:c}">
            </asp:BoundColumn>

         </Columns>
 
      </asp:DataGrid>
 
   </form>
 
</body>
</html>


<%@ Page Language="VB" %>

<%@ Import Namespace="System.Data" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
   <script runat="server">
 
      Function CreateDataSource() As ICollection 
   
         Dim dt As DataTable = New DataTable()
         Dim dr As DataRow
         Dim i As Integer
         Dim dv As DataView
 
         dt.Columns.Add(New DataColumn("IntegerValue", GetType(Integer)))
         dt.Columns.Add(New DataColumn("StringValue", GetType(String)))
         dt.Columns.Add(New DataColumn("CurrencyValue", GetType(Double)))
 
         For i = 0 to 8

            dr = dt.NewRow()
   
            dr(0) = i
            dr(1) = "Item " + i.ToString()
            dr(2) = 1.23 * (i+1)
    
            dt.Rows.Add(dr)
      
         Next i
 
         dv = New DataView(dt)
         CreateDataSource = dv
   
      End Function
 
      Sub Page_Load(sender As Object, e As EventArgs) 
 
         If Not IsPostBack 
         
            ' Load this data only once.
            ItemsGrid.DataSource = CreateDataSource()
            ItemsGrid.DataBind()
          
         End If
         
      End Sub
 
   </script>
 
<head runat="server">
    <title>DataGrid AlternatingItemStyle Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>DataGrid AlternatingItemStyle Example</h3>
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="false"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <ItemStyle BackColor="Yellow">
         </ItemStyle>

         <AlternatingItemStyle BackColor="LightGreen">
         </AlternatingItemStyle>

         <Columns>

            <asp:BoundColumn
                 HeaderText="Number" 
                 DataField="IntegerValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Description" 
                 DataField="StringValue">
            </asp:BoundColumn>

            <asp:BoundColumn
                 HeaderText="Price" 
                 DataField="CurrencyValue" 
                 DataFormatString="{0:c}">
            </asp:BoundColumn>

         </Columns>
 
      </asp:DataGrid>
 
   </form>
 
</body>
</html>


<%@ Page Language="C#" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
   <script runat="server">
 
      ICollection CreateDataSource() 
      {
      
         // Create sample data for the DataGrid control.
         DataTable dt = new DataTable();
         DataRow dr;
 
         // Define the columns of the table.
         dt.Columns.Add(new DataColumn("IntegerValue", typeof(Int32)));
         dt.Columns.Add(new DataColumn("StringValue", typeof(string)));
         dt.Columns.Add(new DataColumn("CurrencyValue", typeof(double)));
 
         // Populate the table with sample values.
         for (int i = 0; i < 5; i++) 
         {
            dr = dt.NewRow();
 
            dr[0] = i;
            dr[1] = "Item " + i.ToString();
            dr[2] = 1.23 * (i + 1);
 
            dt.Rows.Add(dr);
         }
 
         DataView dv = new DataView(dt);
         return dv;
      }
 
      void Page_Load(Object sender, EventArgs e) 
      {
 
         // Load sample data only once, when the page is first loaded.
         if (!IsPostBack) 
         {
            ItemsGrid.DataSource = CreateDataSource();
            ItemsGrid.DataBind();
         }

      }

      void Selection_Change(Object sender, EventArgs e)
      {

         // Set the background color for the items and alternating items in
         // the DataGrid control. Notice that the ItemStyle property affects
         // the even-numbered items, while the AlternatingItemStyle property 
         // affects the odd-numbered items.
         ItemsGrid.ItemStyle.BackColor = 
             System.Drawing.Color.FromName(ItemBackColorList.SelectedItem.Value);
         ItemsGrid.AlternatingItemStyle.BackColor = 
             System.Drawing.Color.FromName(AltItemBackColorList.SelectedItem.Value);

      }

   </script>
 
<head runat="server">
    <title>DataGrid ItemStyle and AlternatingItemStyle Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>DataGrid ItemStyle and AlternatingItemStyle Example</h3>

      Select background colors for the items and alternating items.

      <br /><br />
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="False"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <ItemStyle BackColor="White">
         </ItemStyle>

         <AlternatingItemStyle BackColor="White">
         </AlternatingItemStyle>

         <Columns>

            <asp:BoundColumn DataField="IntegerValue" 
                 HeaderText="Item"/>

            <asp:BoundColumn DataField="StringValue" 
                 HeaderText="Description"/>

            <asp:BoundColumn DataField="CurrencyValue" 
                 HeaderText="Price"
                 DataFormatString="{0:c}">

               <ItemStyle HorizontalAlign="Right">
               </ItemStyle>

            </asp:BoundColumn>
 
         </Columns> 
 
      </asp:DataGrid>

      <hr />

      <table cellpadding="5">

         <tr>

            <td>

               Item BackColor:

            </td>

            <td>

               Alternating item BackColor:

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="ItemBackColorList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem Selected="True" Value="White"> White </asp:ListItem>
                  <asp:ListItem Value="Silver"> Silver </asp:ListItem>
                  <asp:ListItem Value="DarkGray"> Dark Gray </asp:ListItem>
                  <asp:ListItem Value="Khaki"> Khaki </asp:ListItem>
                  <asp:ListItem Value="DarkKhaki"> Dark Khaki </asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="AltItemBackColorList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem Selected="True" Value="White"> White </asp:ListItem>
                  <asp:ListItem Value="Silver"> Silver </asp:ListItem>
                  <asp:ListItem Value="DarkGray"> Dark Gray </asp:ListItem>
                  <asp:ListItem Value="Khaki"> Khaki </asp:ListItem>
                  <asp:ListItem Value="DarkKhaki"> Dark Khaki </asp:ListItem>

               </asp:DropDownList>

            </td>

         </tr>

      </table>
 
   </form>
 
</body>
</html>


<%@ Page Language="VB" AutoEventWireup="True" %>
<%@ Import Namespace="System.Data" %>
 
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
    "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
   <script runat="server">
 
      Function CreateDataSource() As ICollection 
      
         ' Create sample data for the DataGrid control.
         Dim dt As DataTable = New DataTable()
         Dim dr As DataRow
 
         ' Define the columns of the table.
         dt.Columns.Add(New DataColumn("IntegerValue", GetType(Int32)))
         dt.Columns.Add(New DataColumn("StringValue", GetType(string)))
         dt.Columns.Add(New DataColumn("CurrencyValue", GetType(double)))
 
         ' Populate the table with sample values.
         Dim i As Integer

         For i = 0 to 4 
        
            dr = dt.NewRow()
 
            dr(0) = i
            dr(1) = "Item " & i.ToString()
            dr(2) = 1.23 * (i + 1)
 
            dt.Rows.Add(dr)

         Next i
 
         Dim dv As DataView = New DataView(dt)
         Return dv

      End Function
 
      Sub Page_Load(sender As Object, e As EventArgs) 
 
         ' Load sample data only once, when the page is first loaded.
         If Not IsPostBack Then 
  
            ItemsGrid.DataSource = CreateDataSource()
            ItemsGrid.DataBind()

         End If

      End Sub

      Sub Selection_Change(sender As Object, e As EventArgs)

         ' Set the background color for the items and alternating items in
         ' the DataGrid control. Notice that the ItemStyle property affects
         ' the even-numbered items, while the AlternatingItemStyle property 
         ' affects the odd-numbered items.
         ItemsGrid.ItemStyle.BackColor = _
             System.Drawing.Color.FromName(ItemBackColorList.SelectedItem.Value)
         ItemsGrid.AlternatingItemStyle.BackColor = _
             System.Drawing.Color.FromName(AltItemBackColorList.SelectedItem.Value)

      End Sub

   </script>
 
<head runat="server">
    <title>DataGrid ItemStyle and AlternatingItemStyle Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>DataGrid ItemStyle and AlternatingItemStyle Example</h3>

      Select background colors for the items and alternating items.

      <br /><br />
 
      <b>Product List</b>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           AutoGenerateColumns="False"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle>

         <ItemStyle BackColor="White">
         </ItemStyle>

         <AlternatingItemStyle BackColor="White">
         </AlternatingItemStyle>

         <Columns>

            <asp:BoundColumn DataField="IntegerValue" 
                 HeaderText="Item"/>

            <asp:BoundColumn DataField="StringValue" 
                 HeaderText="Description"/>

            <asp:BoundColumn DataField="CurrencyValue" 
                 HeaderText="Price"
                 DataFormatString="{0:c}">

               <ItemStyle HorizontalAlign="Right">
               </ItemStyle>

            </asp:BoundColumn>
 
         </Columns> 
 
      </asp:DataGrid>

      <hr />

      <table cellpadding="5">

         <tr>

            <td>

               Item BackColor:

            </td>

            <td>

               Alternating item BackColor:

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="ItemBackColorList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem Selected="True" Value="White"> White </asp:ListItem>
                  <asp:ListItem Value="Silver"> Silver </asp:ListItem>
                  <asp:ListItem Value="DarkGray"> Dark Gray </asp:ListItem>
                  <asp:ListItem Value="Khaki"> Khaki </asp:ListItem>
                  <asp:ListItem Value="DarkKhaki"> Dark Khaki </asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="AltItemBackColorList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Selection_Change"
                    runat="server">

                  <asp:ListItem Selected="True" Value="White"> White </asp:ListItem>
                  <asp:ListItem Value="Silver"> Silver </asp:ListItem>
                  <asp:ListItem Value="DarkGray"> Dark Gray </asp:ListItem>
                  <asp:ListItem Value="Khaki"> Khaki </asp:ListItem>
                  <asp:ListItem Value="DarkKhaki"> Dark Khaki </asp:ListItem>

               </asp:DropDownList>

            </td>

         </tr>

      </table>
 
   </form>
 
</body>
</html>

備註

AlternatingItemStyle使用屬性為控制項中的 DataGrid 替代專案提供自訂樣式。可調整的常見樣式屬性包括儲存格內的 forecolor、backcolor、font 和 content alignment。提供不同的樣式可增強控制項的外觀 DataGrid 。

控制項中的 DataGrid 專案樣式屬性是透過階層從某個專案樣式屬性繼承到另一個專案樣式屬性。階層中較低設定的專案樣式屬性會由階層中較高的專案樣式屬性繼承。例如，如果您為屬性指定紅色字 ItemStyle 型，控制項中的其他 DataGrid 所有專案樣式屬性也會有紅色字型。這可讓您藉由設定單一專案樣式屬性來提供控制項的通用外觀。您可以藉由設定其樣式屬性，覆寫階層中較高專案樣式屬性的繼承樣式設定。例如，您可以指定屬性的 AlternatingItemStyle 藍色字型，覆寫屬性中指定的 ItemStyle 紅色字型。下表列出從最高到最低階層順序。

優先順序	Style 屬性
1	EditItemStyle
2	SelectedItemStyle
3	AlternatingItemStyle
4	ItemStyle
5	ControlStyle

若要指定替代專案的自訂樣式，請將 <AlternatingItemStyle> 標記放在控制項的 DataGrid 開頭和結束記號之間。然後，您可以在開頭 <AlternatingItemStyle> 標記內列出樣式屬性。

適用於

共用方式為

DataGrid.AlternatingItemStyle 屬性

定義

屬性值

範例

備註

適用於

另請參閱

其他資源