CheckBoxList.CellSpacing Właściwość
Definicja
Ważne
Niektóre informacje odnoszą się do produktu w wersji wstępnej, który może zostać znacząco zmodyfikowany przed wydaniem. Firma Microsoft nie udziela żadnych gwarancji, jawnych lub domniemanych, w odniesieniu do informacji podanych w tym miejscu.
Pobiera lub ustawia odległość (w pikselach) między komórkami.
public:
virtual property int CellSpacing { int get(); void set(int value); };
[System.ComponentModel.Bindable(true)]
public virtual int CellSpacing { get; set; }
public virtual int CellSpacing { get; set; }
[<System.ComponentModel.Bindable(true)>]
member this.CellSpacing : int with get, set
member this.CellSpacing : int with get, set
Public Overridable Property CellSpacing As Integer
Wartość właściwości
Odległość (w pikselach) między komórkami. Wartość domyślna to -1
, która wskazuje, że ta właściwość nie jest ustawiona.
- Atrybuty
Przykłady
W poniższym przykładzie kodu pokazano, jak za pomocą CellSpacing właściwości określić, że odstęp między komórkami kontrolki CheckBoxList ma 5 pikseli.
Uwaga
Poniższe przykłady kodu używają modelu kodu jednokrotnego i mogą nie działać poprawnie, jeśli skopiowano bezpośrednio do pliku kodu za pomocą kodu. Każdy przykładowy kod musi zostać skopiowany do pustego pliku tekstowego z rozszerzeniem .aspx. Aby uzyskać więcej informacji na temat modelu kodu formularzy internetowych, zobacz model kodu strony formularzy internetowych ASP.NET.
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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" >
<head>
<title>CheckBoxList Example</title>
<script language="C#" runat="server">
void Check_Clicked(Object sender, EventArgs e)
{
Message.Text = "Selected Item(s):<br /><br />";
for (int i = 0; i < CheckBoxList1.Items.Count; i++)
{
if (CheckBoxList1.Items[i].Selected)
Message.Text += CheckBoxList1.Items[i].Text + "<br />";
}
}
</script>
</head>
<body>
<form id="form1" action="CheckBoxList.aspx" method="post" runat="server">
<h3>CheckBoxList Example</h3>
<asp:CheckBoxList id="CheckBoxList1"
AutoPostBack="True"
CellPadding="5"
CellSpacing="5"
RepeatColumns="2"
RepeatDirection="Vertical"
RepeatLayout="Flow"
TextAlign="Right"
OnSelectedIndexChanged="Check_Clicked"
runat="server">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</asp:CheckBoxList>
<br /><br />
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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" >
<head>
<title>CheckBoxList Example</title>
<script language="VB" runat="server">
Sub Check_Clicked(sender As Object, e As EventArgs)
Dim i As Integer
Message.Text = "Selected Item(s):<br /><br />"
For i = 0 To CheckBoxList1.Items.Count - 1
If checkboxlist1.Items(i).Selected Then
Message.Text += checkboxlist1.Items(i).Text + "<br />"
End If
Next
End Sub
</script>
</head>
<body>
<form id="form1" action="CheckBoxList.aspx" method="post" runat="server">
<h3>CheckBoxList Example</h3>
<asp:CheckBoxList id="CheckBoxList1"
AutoPostBack="True"
CellPadding="5"
CellSpacing="5"
RepeatColumns="2"
RepeatDirection="Vertical"
RepeatLayout="Flow"
TextAlign="Right"
OnSelectedIndexChanged="Check_Clicked"
runat="server">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</asp:CheckBoxList>
<br /><br />
<asp:label id="Message" runat="server"/>
</form>
</body>
</html>
<%@ Page Language="C#" AutoEventWireup="True" %>
<!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" >
<head runat="server">
<title> CheckBoxList CellPadding and CellSpacing Example </title>
<script runat="server">
void Check_Clicked(Object sender, EventArgs e)
{
Message.Text = "Selected Item(s):<br /><br />";
// Iterate through the Items collection of the CheckBoxList
// control and display the selected items.
for (int i=0; i<checkboxlist1.Items.Count; i++)
{
if (checkboxlist1.Items[i].Selected)
{
Message.Text += checkboxlist1.Items[i].Text + "<br />";
}
}
}
void Index_Change(Object sender, EventArgs e)
{
// Set the cell padding and cell spacing based on the selection
// from the drop-down list controls. Notice that cell padding and
// cell spacing only applies when the RepeatLayout property is set
// to RepeatLayout.Table.
checkboxlist1.CellPadding = CellPaddingList.SelectedIndex;
checkboxlist1.CellSpacing = CellSpacingList.SelectedIndex;
}
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> CheckBoxList CellPadding and CellSpacing Example </h3>
Select items from the CheckBoxList.
<br /><br />
<asp:CheckBoxList id="checkboxlist1"
AutoPostBack="True"
CellPadding="5"
CellSpacing="5"
RepeatColumns="2"
RepeatDirection="Vertical"
RepeatLayout="Table"
TextAlign="Right"
OnSelectedIndexChanged="Check_Clicked"
runat="server">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</asp:CheckBoxList>
<br /><br />
<asp:label id="Message" runat="server"
AssociatedControlID="checkboxlist1"/>
<hr />
Select different values for the cell padding and cell spacing.
<table cellpadding="5">
<tr>
<td>
CellPadding:
</td>
<td>
CellSpacing:
</td>
</tr>
<tr>
<td>
<asp:DropDownList id="CellPaddingList"
AutoPostBack="True"
OnSelectedIndexChanged="Index_Change"
runat="server">
<asp:ListItem>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 Selected="True">5</asp:ListItem>
</asp:DropDownList>
</td>
<td>
<asp:DropDownList id="CellSpacingList"
AutoPostBack="True"
OnSelectedIndexChanged="Index_Change"
runat="server">
<asp:ListItem>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 Selected="True">5</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
</table>
</form>
</body>
</html>
<%@ Page Language="VB" AutoEventWireup="True" %>
<!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" >
<head runat="server">
<title> CheckBoxList CellPadding and CellSpacing Example </title>
<script runat="server">
Sub Check_Clicked(sender as Object, e As EventArgs)
Message.Text = "Selected Item(s):<br /><br />"
' Iterate through the Items collection of the CheckBoxList
' control and display the selected items.
Dim i As Integer
For i=0 To checkboxlist1.Items.Count - 1
If checkboxlist1.Items(i).Selected Then
Message.Text &= checkboxlist1.Items(i).Text & "<br />"
End If
Next
End Sub
Sub Index_Change(sender as Object, e As EventArgs)
' Set the cell padding and cell spacing based on the selection
' from the drop down-list controls. Notice that cell padding and
' cell spacing only applies when the RepeatLayout property is set
' to RepeatLayout.Table.
checkboxlist1.CellPadding = CellPaddingList.SelectedIndex
checkboxlist1.CellSpacing = CellSpacingList.SelectedIndex
End Sub
</script>
</head>
<body>
<form id="form1" runat="server">
<h3> CheckBoxList CellPadding and CellSpacing Example </h3>
Select items from the CheckBoxList.
<br /><br />
<asp:CheckBoxList id="checkboxlist1"
AutoPostBack="True"
CellPadding="5"
CellSpacing="5"
RepeatColumns="2"
RepeatDirection="Vertical"
RepeatLayout="Table"
TextAlign="Right"
OnSelectedIndexChanged="Check_Clicked"
runat="server">
<asp:ListItem>Item 1</asp:ListItem>
<asp:ListItem>Item 2</asp:ListItem>
<asp:ListItem>Item 3</asp:ListItem>
<asp:ListItem>Item 4</asp:ListItem>
<asp:ListItem>Item 5</asp:ListItem>
<asp:ListItem>Item 6</asp:ListItem>
</asp:CheckBoxList>
<br /><br />
<asp:label id="Message" runat="server"/>
<hr />
Select different values for the cell padding and cell spacing.
<table cellpadding="5">
<tr>
<td>
CellPadding:
</td>
<td>
CellSpacing:
</td>
</tr>
<tr>
<td>
<asp:DropDownList id="CellPaddingList"
AutoPostBack="True"
OnSelectedIndexChanged="Index_Change"
runat="server">
<asp:ListItem>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 Selected="True">5</asp:ListItem>
</asp:DropDownList>
</td>
<td>
<asp:DropDownList id="CellSpacingList"
AutoPostBack="True"
OnSelectedIndexChanged="Index_Change"
runat="server">
<asp:ListItem>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 Selected="True">5</asp:ListItem>
</asp:DropDownList>
</td>
</tr>
</table>
</form>
</body>
</html>
Uwagi
Użyj tej właściwości, aby kontrolować odstępy między poszczególnymi komórkami w kontrolce CheckBoxList . Ta właściwość jest stosowana zarówno w pionie, jak i w poziomie.