DataList.CreateControlStyle メソッド
アセンブリ: System.Web (system.web.dll 内)

Dim returnValue As Style returnValue = Me.CreateControlStyle
コントロールの既定のスタイル プロパティを格納している TableStyle。


カスタム サーバー コントロールの CreateControlStyle メソッドをオーバーライドして、常に水平グリッド線をセルの間隔を空けずに DataList コントロールに表示する方法のコード例を次に示します。
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.VB.Controls" Assembly="Samples.AspNet.VB" %> <%@ Page language="vb" %> <HTML> <HEAD> <title>Custom DataList - CreateControlStyle - VB Example</title> <script runat="server"> Private Sub Page_Load(sender As Object, e As EventArgs) ' Create sample data for the DataList control. Dim dt As System.Data.DataTable = New System.Data.DataTable() Dim dr As System.Data.DataRow ' Create a new column named Column1, of type String. Dim col As New System.Data.DataColumn("Column1", GetType(String)) ' Add the column to the DataTable. dt.Columns.Add(col) dr = dt.NewRow() dr(0) = "Hello" dt.Rows.Add(dr) dr = dt.NewRow() dr(0) = "DataList" dt.Rows.Add(dr) dr = dt.NewRow() dr(0) = "World" dt.Rows.Add(dr) ' Show the DataTable values in the DataList. DataList1.DataSource = dt DataList1.DataBind() End Sub ' Page_Load </script> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom DataList - CreateControlStyle - VB Example</h3> <aspSample:CustomDataListCreateControlStyle id="DataList1" runat="server" BorderColor="#999999" BorderStyle="None" BackColor="White" CellPadding="3" GridLines="Vertical" BorderWidth="1px" Width="100px"> <HeaderStyle Font-Bold="True" ForeColor="White" BackColor="#000084" /> <HeaderTemplate> <asp:Label id="Label1" runat="server">Column1</asp:Label> </HeaderTemplate> <ItemStyle ForeColor="Black" BackColor="#EEEEEE" /> <ItemTemplate> <asp:Label id="Label2" runat="server"><%# DataBinder.Eval(Container.DataItem, "Column1") %></asp:Label> </ItemTemplate> <AlternatingItemStyle BackColor="#DCDCDC" /> <AlternatingItemTemplate> <asp:Label id="Label3" runat="server"><%# DataBinder.Eval(Container.DataItem, "Column1") %></asp:Label> </AlternatingItemTemplate> </aspSample:CustomDataListCreateControlStyle> </form> </body> </HTML> <br /><span space="preserve">...</span><br />Imports System.Web Imports System.Security.Permissions Namespace Samples.AspNet.VB.Controls <AspNetHostingPermission(SecurityAction.Demand, Level:=AspNetHostingPermissionLevel.Minimal)> _ Public NotInheritable Class CustomDataListCreateControlStyle Inherits System.Web.UI.WebControls.DataList Protected Overrides Function CreateControlStyle() As System.Web.UI.WebControls.Style ' Create a new TableStyle instance based on ViewState values. Dim style As New System.Web.UI.WebControls.TableStyle(ViewState) ' Show the GridLines horizontal with no CellSpacing. style.GridLines = System.Web.UI.WebControls.GridLines.Horizontal style.CellSpacing = 0 ' Return the Style Return style End Function End Class End Namespace
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.CS.Controls" Assembly="Samples.AspNet.CS" %> <%@ Page language="c#" %> <HTML> <HEAD> <title>Custom DataList - CreateControlStyle - C# Example</title> <script runat="server"> private void Page_Load(object sender, System.EventArgs e) { // Create sample data for the DataList control. System.Data.DataTable dt = new System.Data.DataTable(); System.Data.DataRow dr; dt.Columns.Add(new System.Data.DataColumn("Column1", typeof(String))); dr = dt.NewRow(); dr[0] = "Hello"; dt.Rows.Add(dr); dr = dt.NewRow(); dr[0] = "DataList"; dt.Rows.Add(dr); dr = dt.NewRow(); dr[0] = "World"; dt.Rows.Add(dr); // Show the DataTable values in the DataList. DataList1.DataSource = dt; DataList1.DataBind(); } </script> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom DataList - CreateControlStyle - C# Example</h3> <aspSample:CustomDataListCreateControlStyle id="DataList1" runat="server" BorderColor="#999999" BorderStyle="None" BackColor="White" CellPadding="3" GridLines="Vertical" BorderWidth="1px" Width="100px"> <HeaderStyle Font-Bold="True" ForeColor="White" BackColor="#000084" /> <HeaderTemplate> <asp:Label id="Label1" runat="server">Column1</asp:Label> </HeaderTemplate> <ItemStyle ForeColor="Black" BackColor="#EEEEEE" /> <ItemTemplate> <asp:Label id="Label2" runat="server"><%# DataBinder.Eval(Container.DataItem, "Column1") %></asp:Label> </ItemTemplate> <AlternatingItemStyle BackColor="#DCDCDC" /> <AlternatingItemTemplate> <asp:Label id="Label3" runat="server"><%# DataBinder.Eval(Container.DataItem, "Column1") %></asp:Label> </AlternatingItemTemplate> </aspSample:CustomDataListCreateControlStyle> </form> </body> </HTML> <br /><span space="preserve">...</span><br />using System.Web; using System.Security.Permissions; namespace Samples.AspNet.CS.Controls { [AspNetHostingPermission(SecurityAction.Demand, Level = AspNetHostingPermissionLevel.Minimal)] public sealed class CustomDataListCreateControlStyle : System.Web.UI.WebControls.DataList { protected override System.Web.UI.WebControls.Style CreateControlStyle() { // Create a new TableStyle instance based on ViewState values. System.Web.UI.WebControls.TableStyle style = new System.Web.UI.WebControls.TableStyle(ViewState); // Show the GridLines horizontal with no CellSpacing. style.GridLines = System.Web.UI.WebControls.GridLines.Horizontal; style.CellSpacing = 0; // Return the Style return style; } } }
<%@ Register TagPrefix="aspSample" Namespace="Samples.AspNet.JSL.Controls" Assembly="Samples.AspNet.JSL" %> <%@ Page language="VJ#" %> <HTML> <HEAD> <title>Custom DataList - CreateControlStyle - VJ# Example</title> <script runat="server"> private void Page_Load(Object sender, System.EventArgs e) { // Create sample data for the DataList control. System.Data.DataTable dt = new System.Data.DataTable(); System.Data.DataRow dr; dt.get_Columns().Add(new System.Data.DataColumn("Column1", String.class.ToType())); dr = dt.NewRow(); dr.set_Item(0, "Hello"); dt.get_Rows().Add(dr); dr = dt.NewRow(); dr.set_Item(0, "DataList"); dt.get_Rows().Add(dr); dr = dt.NewRow(); dr.set_Item(0, "World"); dt.get_Rows().Add(dr); // Show the DataTable values in the DataList. DataList1.set_DataSource(dt); DataList1.DataBind(); } //Page_Load </script> </HEAD> <body> <form id="Form1" method="post" runat="server"> <h3>Custom DataList - CreateControlStyle - VJ# Example</h3> <aspSample:CustomDataListCreateControlStyle id="DataList1" runat="server" BorderColor="#999999" BorderStyle="None" BackColor="White" CellPadding="3" GridLines="Vertical" BorderWidth="1px" Width="100px"> <HeaderStyle Font-Bold="True" ForeColor="White" BackColor="#000084" /> <HeaderTemplate> <asp:Label id="Label1" runat="server">Column1</asp:Label> </HeaderTemplate> <ItemStyle ForeColor="Black" BackColor="#EEEEEE" /> <ItemTemplate> <asp:Label id="Label2" runat="server"><%# DataBinder.Eval(Container.get_DataItem(), "Column1") %></asp:Label> </ItemTemplate> <AlternatingItemStyle BackColor="#DCDCDC" /> <AlternatingItemTemplate> <asp:Label id="Label3" runat="server"><%# DataBinder.Eval(Container.get_DataItem(), "Column1") %></asp:Label> </AlternatingItemTemplate> </aspSample:CustomDataListCreateControlStyle> </form> </body> </HTML> <br /><span space="preserve">...</span><br />package Samples.AspNet.JSL.Controls; public class CustomDataListCreateControlStyle extends System.Web.UI.WebControls.DataList { protected System.Web.UI.WebControls.Style CreateControlStyle() { // Create a new TableStyle instance based on ViewState values. System.Web.UI.WebControls.TableStyle style = new System.Web.UI. WebControls.TableStyle(get_ViewState()); // Show the GridLines horizontal with no CellSpacing. style.set_GridLines(System.Web.UI.WebControls.GridLines.Horizontal); style.set_CellSpacing(0); // Return the Style return style; } //CreateControlStyle } //CustomDataListCreateControlStyle

Windows 98, Windows 2000 SP4, Windows Server 2003, Windows XP Media Center Edition, Windows XP Professional x64 Edition, Windows XP SP2, Windows XP Starter Edition
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