BaseDataList.GridLines Proprietà

  • Riferimento

Definizione

Spazio dei nomi:
System.Web.UI.WebControls
Assembly:
System.Web.dll

Ottiene o imposta un valore che indica se il bordo tra le celle di un controllo di elenco dei dati verrà visualizzato.

public:
 virtual property System::Web::UI::WebControls::GridLines GridLines { System::Web::UI::WebControls::GridLines get(); void set(System::Web::UI::WebControls::GridLines value); };
[System.ComponentModel.Bindable(true)]
public virtual System.Web.UI.WebControls.GridLines GridLines { get; set; }
public virtual System.Web.UI.WebControls.GridLines GridLines { get; set; }
[<System.ComponentModel.Bindable(true)>]
member this.GridLines : System.Web.UI.WebControls.GridLines with get, set
member this.GridLines : System.Web.UI.WebControls.GridLines with get, set
Public Overridable Property GridLines As GridLines

Valore della proprietà

GridLines

Uno dei valori di GridLines. Il valore predefinito è Both.

Attributi
BindableAttribute

Esempio

Nell'esempio di codice seguente viene illustrato come utilizzare la GridLines proprietà per visualizzare sia le griglie orizzontali che verticali in un controllo associato a dati.


<%@ 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 < 9; 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 Index_Change(Object sender, EventArgs e) 
      {

         ItemsGrid.GridLines = (GridLines)GridLinesList.SelectedIndex;

      }
 
   </script>
 
<head runat="server">
    <title>BaseDataList GridLines Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>BaseDataList GridLines Example</h3>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           GridLines="Both"
           AutoGenerateColumns="true"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle> 
 
      </asp:DataGrid>

      <br />

      <h4>Select the gridline style:</h4>

            <table cellpadding="5">

         <tr>

            <td>

               Gridline style:

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="GridLinesList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Index_Change"
                    runat="server">

                  <asp:ListItem Value="0">None</asp:ListItem>
                  <asp:ListItem Value="1">Horizontal</asp:ListItem>
                  <asp:ListItem Value="2">Vertical</asp:ListItem>
                  <asp:ListItem Value="3" Selected="True">Both</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 8 
        
            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 Index_Change(sender As Object, e As EventArgs) 

         ItemsGrid.GridLines = CType(GridLinesList.SelectedIndex, GridLines)

      End Sub
 
   </script>
 
<head runat="server">
    <title>BaseDataList GridLines Example</title>
</head>
<body>
 
   <form id="form1" runat="server">
 
      <h3>BaseDataList GridLines Example</h3>
 
      <asp:DataGrid id="ItemsGrid"
           BorderColor="black"
           BorderWidth="1"
           CellPadding="3"
           GridLines="Both"
           AutoGenerateColumns="true"
           runat="server">

         <HeaderStyle BackColor="#00aaaa">
         </HeaderStyle> 
 
      </asp:DataGrid>

      <br />

      <h4>Select the gridline style:</h4>

            <table cellpadding="5">

         <tr>

            <td>

               Gridline style:

            </td>

         </tr>

         <tr>

            <td>

               <asp:DropDownList id="GridLinesList"
                    AutoPostBack="True"
                    OnSelectedIndexChanged="Index_Change"
                    runat="server">

                  <asp:ListItem Value="0">None</asp:ListItem>
                  <asp:ListItem Value="1">Horizontal</asp:ListItem>
                  <asp:ListItem Value="2">Vertical</asp:ListItem>
                  <asp:ListItem Value="3" Selected="True">Both</asp:ListItem>

               </asp:DropDownList>

            </td>

         </tr>

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

Commenti

Utilizzare la GridLines proprietà per specificare se viene visualizzato il bordo tra le celle di un controllo elenco dati. Questa proprietà viene impostata con uno dei GridLines valori di enumerazione . Nella tabella seguente sono elencati i valori possibili.

Valore Descrizione
None Non viene visualizzato alcun bordo cella.
Horizontal Vengono visualizzati solo i bordi superiore e inferiore delle celle di un controllo elenco dati.
Vertical Vengono visualizzati solo i bordi sinistro e destro delle celle nel controllo elenco dati.
Both Vengono visualizzati tutti i bordi delle celle di un controllo elenco dati.

Si applica a

Vedi anche