DataList.SeparatorStyle Propriedade
Definição
public:
virtual property System::Web::UI::WebControls::TableItemStyle ^ SeparatorStyle { System::Web::UI::WebControls::TableItemStyle ^ get(); };
[System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)]
public virtual System.Web.UI.WebControls.TableItemStyle SeparatorStyle { get; }
[<System.Web.UI.PersistenceMode(System.Web.UI.PersistenceMode.InnerProperty)>]
member this.SeparatorStyle : System.Web.UI.WebControls.TableItemStyle
Public Overridable ReadOnly Property SeparatorStyle As TableItemStyle
Valor da propriedade
Um TableItemStyle objeto que contém as propriedades de estilo do separador entre cada item DataList no controle.A TableItemStyle object that contains the style properties of the separator between each item in the DataList control. O valor padrão é um objeto TableItemStyle vazio.The default value is an empty TableItemStyle object.
- Atributos
Exemplos
O exemplo de código a seguir demonstra como usar a SeparatorStyle propriedade para especificar uma cor de plano de fundo personalizada para o separador entre cada item no DataList controle.The following code example demonstrates how to use the SeparatorStyle property to specify a custom background color for the separator between each item in the DataList control.
Observação
O exemplo de código a seguir usa o modelo de código de arquivo único e pode não funcionar corretamente se copiado diretamente para um arquivo code-behind.The following code sample uses the single-file code model and may not work correctly if copied directly into a code-behind file. Este exemplo de código deve ser copiado em um arquivo de texto vazio que tenha uma extensão. aspx.This code sample must be copied into an empty text file that has an .aspx extension. Para obter mais informações sobre o modelo de código Web Forms, consulte modelo de código de página do ASP.NET Web Forms.For more information on the Web Forms code model, see ASP.NET Web Forms Page Code Model.
<%@ 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 Selection_Change(Object sender, EventArgs e)
{
// Set the background color for the separator section of
// the DataList control.
ItemsList.SeparatorStyle.BackColor =
System.Drawing.Color.FromName(ItemList.SelectedItem.Value);
}
</script>
<head runat="server">
<title>DataList SeparatorTemplate and SeparatorStyle Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DataList SeparatorTemplate and SeparatorStyle Example</h3>
Select a background color for the separator between
items in the DataList.
<br /><br />
<asp:DataList id="ItemsList"
BorderColor="black"
CellPadding="5"
CellSpacing="5"
RepeatDirection="Vertical"
RepeatLayout="Table"
RepeatColumns="3"
ShowFooter="True"
runat="server">
<HeaderStyle BackColor="#aaaadd">
</HeaderStyle>
<ItemStyle BackColor="Silver">
</ItemStyle>
<AlternatingItemStyle BackColor="DarkGray">
</AlternatingItemStyle>
<SeparatorStyle BackColor="White">
</SeparatorStyle>
<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>
<SeparatorTemplate>
<asp:Image id="SeparatorImage"
GenerateEmptyAlternateText='true'
ImageUrl="SeparatorImage.jpg"
runat="server"/>
</SeparatorTemplate>
</asp:DataList>
<hr />
<table cellpadding="5">
<tr>
<td>
Separator BackColor:
</td>
</tr>
<tr>
<td>
<asp:DropDownList id="ItemList"
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 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 Selection_Change(sender As Object, e As EventArgs)
' Set the background color for the separator section of
' the DataList control.
ItemsList.SeparatorStyle.BackColor = _
System.Drawing.Color.FromName(ItemList.SelectedItem.Value)
End Sub
</script>
<head runat="server">
<title>DataList SeparatorTemplate and SeparatorStyle Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>DataList SeparatorTemplate and SeparatorStyle Example</h3>
Select a background color for the separator between
items in the DataList.
<br /><br />
<asp:DataList id="ItemsList"
BorderColor="black"
CellPadding="5"
CellSpacing="5"
RepeatDirection="Vertical"
RepeatLayout="Table"
RepeatColumns="3"
ShowFooter="True"
runat="server">
<HeaderStyle BackColor="#aaaadd">
</HeaderStyle>
<ItemStyle BackColor="Silver">
</ItemStyle>
<AlternatingItemStyle BackColor="DarkGray">
</AlternatingItemStyle>
<SeparatorStyle BackColor="White">
</SeparatorStyle>
<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>
<SeparatorTemplate>
<asp:Image id="SeparatorImage"
GenerateEmptyAlternateText='true'
ImageUrl="SeparatorImage.jpg"
runat="server"/>
</SeparatorTemplate>
</asp:DataList>
<hr />
<table cellpadding="5">
<tr>
<td>
Separator BackColor:
</td>
</tr>
<tr>
<td>
<asp:DropDownList id="ItemList"
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>
Comentários
Use a SeparatorStyle propriedade para fornecer um estilo personalizado para o separador entre cada item DataList no controle.Use the SeparatorStyle property to provide a custom style for the separator between each item in the DataList control. O separador permite que você coloque um elemento com conteúdo personalizado entre cada item no DataList controle.The separator allows you to place an element with custom content between each item in the DataList control. Atributos de estilo comuns que podem ser ajustados incluem cor de primeiro plano, cor do plano de fundo, fonte e alinhamento de conteúdo dentro da célula.Common style attributes that can be adjusted include foreground color, background color, font, and content alignment within the cell. Fornecer um estilo diferente aprimora a aparência do DataList controle.Providing a different style enhances the appearance of the DataList control.
Para especificar um estilo personalizado para o separador, coloque as <SeparatorStyle> marcas entre as marcas de abertura e de fechamento do DataList controle.To specify a custom style for the separator, place the <SeparatorStyle> tags between the opening and closing tags of the DataList control. Em seguida, você pode listar os atributos de estilo dentro da marca de abertura <SeparatorStyle> .You can then list the style attributes within the opening <SeparatorStyle> tag.