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RepeatLayout Enumeration

Definition

Gibt das Layout von Elementen in einem Listensteuerelement an.

public enum class RepeatLayout
public enum RepeatLayout
type RepeatLayout = 
Public Enum RepeatLayout
Vererbung
RepeatLayout

Felder

Name Wert Beschreibung
Table 0

Elemente werden in einer Tabelle angezeigt.
Diese Option bewirkt, dass das Steuerelement HTML rendert, die möglicherweise nicht den Barrierefreiheitsstandards entsprechen. Weitere Informationen finden Sie unter Barrierefreiheit in Visual Studio und ASP.NET.

Flow 1

Elemente werden ohne Tabellenstruktur angezeigt. Gerendertes Markup besteht aus einem span Element und Elementen werden durch br Elemente getrennt.

UnorderedList 2

Elemente werden ohne Tabellenstruktur angezeigt. Gerendertes Markup besteht aus einem ul Element, das Elemente enthält li .
Dieses Feld ist neu ab ASP.NET 4 und ist nur für die CheckBoxList Steuerelemente RadioButtonList gültig.

OrderedList 3

Elemente werden ohne Tabellenstruktur angezeigt. Gerendertes Markup besteht aus einem ol Element, das Elemente enthält li .
Dieser Wert ist neu ab ASP.NET 4 und ist nur für die CheckBoxList Steuerelemente RadioButtonList eine gültige Option.

Beispiele

Das folgende Beispiel zeigt ein Listensteuerelement, dessen Layout durch den Table Enumerationswert definiert wird.


<%@ 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 DataList 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)));
         dt.Columns.Add(new DataColumn("ImageValue", typeof(String)));
 
         // Populate the table with sample values.
         for (int i = 0; i < 9; i++) 
         {
            dr = dt.NewRow();
 
            dr[0] = i;
            dr[1] = "Description for item " + i.ToString();
            dr[2] = 1.23 * (i + 1);
            dr[3] = "Image" + i.ToString() + ".jpg";
 
            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) 
         {
            ItemsList.DataSource = CreateDataSource();
            ItemsList.DataBind();
         }

      }
 
      void Button_Click(Object sender, EventArgs e) 
      {
 
         // Set the repeat direction based on the selected value of the
         // DirectionList DropDownList control.
         ItemsList.RepeatDirection = 
             (RepeatDirection)DirectionList.SelectedIndex;

         // Set the repeat layout based on the selected value of the
         // LayoutList DropDownList control.
         ItemsList.RepeatLayout = (RepeatLayout)LayoutList.SelectedIndex;

         // Set the number of columns to display based on the selected
         // value of the ColumnsList DropDownList control.
         ItemsList.RepeatColumns = ColumnsList.SelectedIndex;

         // Show or hide the gridlines based on the value of the
         // ShowBorderCheckBox property. Note that gridlines are displayed
         // only if the RepeatLayout property is set to Table.
         if ((ShowBorderCheckBox.Checked) 
             && (ItemsList.RepeatLayout == RepeatLayout.Table)) 
         {
            ItemsList.BorderWidth = Unit.Pixel(1);
            ItemsList.GridLines = GridLines.Both;
         }    
         else  
         {
            ItemsList.BorderWidth = Unit.Pixel(0);
            ItemsList.GridLines = GridLines.None;
         }
    
      }    
 
   </script>
 
<head runat="server">
    <title>DataList Example</title>
</head>
<body>
 
   <form id="form1" runat="server">

      <h3>DataList Example</h3>
 
      <asp:DataList id="ItemsList"
           BorderColor="black"
           CellPadding="5"
           CellSpacing="5"
           RepeatDirection="Vertical"
           RepeatLayout="Table"
           RepeatColumns="0"
           BorderWidth="0"
           runat="server">

         <HeaderStyle BackColor="#aaaadd">
         </HeaderStyle>

         <AlternatingItemStyle BackColor="Gainsboro">
         </AlternatingItemStyle>

         <HeaderTemplate>

            List of items

         </HeaderTemplate>
               
         <ItemTemplate>

            Description: <br />
            <%# DataBinder.Eval(Container.DataItem, "StringValue") %>

            <br />

            Price: <%# DataBinder.Eval(Container.DataItem, "CurrencyValue", "{0:c}") %>

            <br />

            <asp:Image id="ProductImage"
                 AlternatingText='<%# DataBinder.Eval(Container.DataItem, "StringValue") %>'
                 ImageUrl='<%# DataBinder.Eval(Container.DataItem, "ImageValue") %>'
                 runat="server"/>

         </ItemTemplate>
 
      </asp:DataList>
 
      <hr />

      <table cellpadding="5">

         <tr>

            <th>

               Repeat direction:

            </th>

            <th>

               Repeat layout:

            </th>

            <th>

               Repeat columns:

            </th>

            <th>

               <asp:CheckBox id="ShowBorderCheckBox"
                    Text="Show border"
                    Checked="False" 
                    runat="server" />

            </th>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="DirectionList" 
                    runat="server">

                  <asp:ListItem>Horizontal</asp:ListItem>
                  <asp:ListItem Selected="True">Vertical</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="LayoutList" 
                    runat="server">

                  <asp:ListItem Selected="True">Table</asp:ListItem>
                  <asp:ListItem>Flow</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="ColumnsList" 
                    runat="server">

                  <asp:ListItem Selected="True">0</asp:ListItem>
                  <asp:ListItem>1</asp:ListItem>
                  <asp:ListItem>2</asp:ListItem>
                  <asp:ListItem>3</asp:ListItem>
                  <asp:ListItem>4</asp:ListItem>
                  <asp:ListItem>5</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

                

            </td>


         </tr>

      </table>     
         
      <asp:LinkButton id="RefreshButton" 
           Text="Refresh DataList" 
           OnClick="Button_Click" 
           runat="server"/>
 
   </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 DataList 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)))
         dt.Columns.Add(New DataColumn("ImageValue", GetType(String)))
 
         ' Populate the table with sample values.
         Dim i As Integer

         For i = 0 To 8 

            dr = dt.NewRow()
 
            dr(0) = i
            dr(1) = "Description for item " & i.ToString()
            dr(2) = 1.23 * (i + 1)
            dr(3) = "Image" & i.ToString() & ".jpg"
 
            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 
     
            ItemsList.DataSource = CreateDataSource()
            ItemsList.DataBind()
         
         End If

      End Sub
 
      Sub Button_Click(sender As Object, e As EventArgs) 
 
         ' Set the repeat direction based on the selected value of the
         ' DirectionList DropDownList control.
         ItemsList.RepeatDirection = _
             CType(DirectionList.SelectedIndex, RepeatDirection)

         ' Set the repeat layout based on the selected value of the
         ' LayoutList DropDownList control.
         ItemsList.RepeatLayout = CType(LayoutList.SelectedIndex, RepeatLayout)

         ' Set the number of columns to display based on the selected
         ' value of the ColumnsList DropDownList control.
         ItemsList.RepeatColumns = ColumnsList.SelectedIndex

         ' Show or hide the gridlines based on the value of the
         ' ShowBorderCheckBox. Note that gridlines are displayed
         ' only if the RepeatLayout property is set to Table.
         If ShowBorderCheckBox.Checked _
             And ItemsList.RepeatLayout = RepeatLayout.Table Then 

            ItemsList.BorderWidth = Unit.Pixel(1)
            ItemsList.GridLines = GridLines.Both
         
         Else  
    
            ItemsList.BorderWidth = Unit.Pixel(0)
            ItemsList.GridLines = GridLines.None
         
         End If
    
      End Sub    
 
   </script>
 
<head runat="server">
    <title>DataList Example</title>
</head>
<body>
 
   <form id="form1" runat="server">

      <h3>DataList Example</h3>
 
      <asp:DataList id="ItemsList"
           BorderColor="black"
           CellPadding="5"
           CellSpacing="5"
           RepeatDirection="Vertical"
           RepeatLayout="Table"
           RepeatColumns="0"
           BorderWidth="0"
           runat="server">

         <HeaderStyle BackColor="#aaaadd">
         </HeaderStyle>

         <AlternatingItemStyle BackColor="Gainsboro">
         </AlternatingItemStyle>

         <HeaderTemplate>

            List of items

         </HeaderTemplate>
               
         <ItemTemplate>

            Description: <br />
            <%# DataBinder.Eval(Container.DataItem, "StringValue") %>

            <br />

            Price: <%# DataBinder.Eval(Container.DataItem, "CurrencyValue", "{0:c}") %>

            <br />

            <asp:Image id="ProductImage"
                 AlternatingText='<%# DataBinder.Eval(Container.DataItem, "StringValue") %>'
                 ImageUrl='<%# DataBinder.Eval(Container.DataItem, "ImageValue") %>'
                 runat="server"/>

         </ItemTemplate>
 
      </asp:DataList>
 
      <hr />

      <table cellpadding="5">

         <tr>

            <th>

               Repeat direction:

            </th>

            <th>

               Repeat layout:

            </th>

            <th>

               Repeat columns:

            </th>

            <th>

               <asp:CheckBox id="ShowBorderCheckBox"
                    Text="Show border"
                    Checked="False" 
                    runat="server" />

            </th>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="DirectionList" 
                    runat="server">

                  <asp:ListItem>Horizontal</asp:ListItem>
                  <asp:ListItem Selected="True">Vertical</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="LayoutList" 
                    runat="server">

                  <asp:ListItem Selected="True">Table</asp:ListItem>
                  <asp:ListItem>Flow</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

               <asp:DropDownList id="ColumnsList" 
                    runat="server">

                  <asp:ListItem Selected="True">0</asp:ListItem>
                  <asp:ListItem>1</asp:ListItem>
                  <asp:ListItem>2</asp:ListItem>
                  <asp:ListItem>3</asp:ListItem>
                  <asp:ListItem>4</asp:ListItem>
                  <asp:ListItem>5</asp:ListItem>

               </asp:DropDownList>

            </td>

            <td>

                

            </td>


         </tr>

      </table>     
         
      <asp:LinkButton id="RefreshButton" 
           Text="Refresh DataList" 
           OnClick="Button_Click" 
           runat="server"/>
 
   </form>
 
</body>
</html>

Das folgende Beispiel zeigt Markup, das für ein CheckBoxList Steuerelement gerendert wird, auf dessen RepeatLayout Eigenschaft festgelegt Flowist.

<span id="ctl00_MainContent_CheckBoxList1">
  <input id="ctl00_MainContent_CheckBoxList1_0" type="checkbox"
    name="ctl00$MainContent$CheckBoxList1$0" value="Item 1" />
  <label for="ctl00_MainContent_CheckBoxList1_0">Item 1</label>
  <br />
  <input id="ctl00_MainContent_CheckBoxList1_1" type="checkbox"
    name="ctl00$MainContent$CheckBoxList1$1" value="Item 2"/>
  <label for="ctl00_MainContent_CheckBoxList1_1">Item 2</label>
  <br />
  <input id="ctl00_MainContent_CheckBoxList1_2" type="checkbox"
    name="ctl00$MainContent$CheckBoxList1$2" value="Item 2" />
  <label for="ctl00_MainContent_CheckBoxList1_2">Item 2</label>
</span>

Das folgende Beispiel zeigt Markup, das für ein CheckBoxList Steuerelement gerendert wird, auf dessen RepeatLayout Eigenschaft festgelegt OrderedListist.

<ol id="ctl00_MainContent_CheckBoxList3">
  <li>
    <input id="ctl00_MainContent_CheckBoxList3_0" type="checkbox"
      name="ctl00$MainContent$CheckBoxList3$0" value="Item 1" />
    <label for="ctl00_MainContent_CheckBoxList3_0">Item 1</label>
  </li>
  <li>
    <input id="ctl00_MainContent_CheckBoxList3_1" type="checkbox"
      name="ctl00$MainContent$CheckBoxList3$1" value="Item 2" />
    <label for="ctl00_MainContent_CheckBoxList3_1">Item 2</label>
  </li>
  <li>
    <input id="ctl00_MainContent_CheckBoxList3_2" type="checkbox"
      name="ctl00$MainContent$CheckBoxList3$2" value="Item 2" />
    <label for="ctl00_MainContent_CheckBoxList3_2">Item 2</label>
  </li>
</ol>

Das folgende Beispiel zeigt Markup, das für ein CheckBoxList Steuerelement gerendert wird, auf dessen RepeatLayout Eigenschaft festgelegt Tableist.

<table id="ctl00_MainContent_CheckBoxList2">
  <tr>
    <td>
      <input id="ctl00_MainContent_CheckBoxList2_0" type="checkbox"
        name="ctl00$MainContent$CheckBoxList2$0" value="Item 1" />
      <label for="ctl00_MainContent_CheckBoxList2_0">Item 1</label>
    </td>
  </tr>
  <tr>
    <td>
      <input id="ctl00_MainContent_CheckBoxList2_1" type="checkbox"
        name="ctl00$MainContent$CheckBoxList2$1" value="Item 2" />
      <label for="ctl00_MainContent_CheckBoxList2_1">Item 2</label>
    </td>
  </tr>
  <tr>
    <td>
      <input id="ctl00_MainContent_CheckBoxList2_2" type="checkbox"
        name="ctl00$MainContent$CheckBoxList2$2" value="Item 3" />
      <label for="ctl00_MainContent_CheckBoxList2_2">Item 3</label>
    </td>
  </tr>
</table>

Das folgende Beispiel zeigt Markup, das für ein CheckBoxList Steuerelement gerendert wird, auf dessen RepeatLayout Eigenschaft festgelegt UnorderedListist.

<ul id="ctl00_MainContent_CheckBoxList4">
  <li>
    <input id="ctl00_MainContent_CheckBoxList4_0" type="checkbox"
      name="ctl00$MainContent$CheckBoxList4$0" value="Item 1" />
    <label for="ctl00_MainContent_CheckBoxList4_0">Item 1</label>
  </li>
  <li>
    <input id="ctl00_MainContent_CheckBoxList4_1" type="checkbox"
      name="ctl00$MainContent$CheckBoxList4$1" value="Item 2" />
    <label for="ctl00_MainContent_CheckBoxList4_1">Item 2</label>
  </li>
  <li>
    <input id="ctl00_MainContent_CheckBoxList4_2" type="checkbox"
      name="ctl00$MainContent$CheckBoxList4$2" value="Item 2" />
    <label for="ctl00_MainContent_CheckBoxList4_2">Item 2</label>
  </li>
</ul>

Hinweise

Die RepeatLayout Aufzählung stellt die verschiedenen Layoutoptionen für ein Listensteuerelement dar.

Gilt für:

Weitere Informationen