CssStyleCollection.Count Property
Definition
Important
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Gets the number of items in the CssStyleCollection object.
public:
property int Count { int get(); };public int Count { get; }member this.Count : intPublic ReadOnly Property Count As IntegerProperty Value
The number of items in the CssStyleCollection object.
Examples
The following example creates a CountStyleFunc function that obtains the current value of the Count property for an HtmlInputText server control and displays it to an ASP.NET page.
<%@ Page Language="C#" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
protected void Page_Load(object sender, EventArgs e)
{
if (!IsPostBack)
CountStyleFunc(sender, e);
}
protected void CountStyleFunc(object sender, EventArgs e)
{
int styleCount;
// Get the StylesCollection Count.
styleCount = mytextBox.Style.Count;
Response.Write("<br /> CssStyleCollection Count " + styleCount);
}
protected void AddBtn_Click(Object Src, EventArgs e)
{
// Add style to textbox.
mytextBox.Style["background-color"] = "green";
CountStyleFunc(Src, e);
}
protected void ClearButton_Click(Object Src, EventArgs e)
{
mytextBox.Style.Clear();
CountStyleFunc(Src, e);
}
protected void RemoveButton_Click(Object Src, EventArgs e)
{
mytextBox.Style.Remove("background-color");
CountStyleFunc(Src, e);
}
protected void ShowButton_Click(Object Src, EventArgs e)
{
DataTable dt = new DataTable();
DataRow dr;
dt.Columns.Add(new DataColumn("AttributeName", typeof(String)));
dt.Columns.Add(new DataColumn("AttributeValue", typeof(String)));
// Get the styles collection.
foreach (object styleKey in mytextBox.Style.Keys)
{
dr = dt.NewRow();
dr[0] = (string)styleKey;
dr[1] = mytextBox.Style[(string)styleKey];
dt.Rows.Add(dr);
}
DataView dv = new DataView(dt);
DataList1.DataSource = dv;
DataList1.DataBind();
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CssStyleCollection Example</title>
</head>
<body>
<form id="CSSForm" runat="server">
<div>
<input type="text"
id="mytextBox"
style="color:black;font: 12pt arial;"
runat="server"
name="mytextBox"/>
<br /> <br />
<input type="Button"
id="addBtn"
value="AddStyle"
onserverclick="AddBtn_Click"
runat="server"
name="addBtn"/>
<input type="Button"
id="removeBtn"
value="RemoveStyle"
onserverclick="RemoveButton_Click"
runat="server"
name="removeBtn"/>
<input type="Button"
id="clearBtn"
value="ClearStyle"
onserverclick="ClearButton_Click"
runat="server"
name="clearBtn"/>
<input type="Button"
id="showBtn"
value="ShowAllStyles"
onserverclick="ShowButton_Click"
runat="server"
name="showBtn"/>
<asp:DataList id="DataList1"
runat="server">
<HeaderStyle Font-Bold="true"/>
<HeaderTemplate>
CssStyleCollection
</HeaderTemplate>
<ItemTemplate>
Attribute:
<%# DataBinder.Eval(Container.DataItem, "AttributeName") %>
,
Value:
<%# DataBinder.Eval(Container.DataItem, "AttributeValue") %>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</body>
</html>
<%@ Page Language="VB" %>
<%@ Import Namespace="System.Data" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
Protected Sub Page_Load(ByVal sender As Object, ByVal e As EventArgs)
If Not IsPostBack Then
CountStyleFunc(sender, e)
End If
End Sub
Protected Sub CountStyleFunc(ByVal sender As Object, ByVal e As EventArgs)
Dim styleCount As Integer
' Get the StylesCollection Count.
styleCount = mytextBox.Style.Count
Response.Write("<br /> CssStyleCollection Count " & styleCount)
End Sub
Protected Sub AddBtn_Click(ByVal Src As Object, ByVal e As EventArgs)
' Add style to textbox.
mytextBox.Style("background-color") = "green"
CountStyleFunc(Src, e)
End Sub
Protected Sub ClearButton_Click(ByVal Src As Object, ByVal e As EventArgs)
mytextBox.Style.Clear()
CountStyleFunc(Src, e)
End Sub
Protected Sub RemoveButton_Click(ByVal Src As Object, ByVal e As EventArgs)
mytextBox.Style.Remove("background-color")
CountStyleFunc(Src, e)
End Sub
Protected Sub ShowButton_Click(ByVal Src As Object, ByVal e As EventArgs)
Dim dt As New DataTable()
Dim dr As DataRow
dt.Columns.Add(New DataColumn("AttributeName", GetType(String)))
dt.Columns.Add(New DataColumn("AttributeValue", GetType(String)))
' Get the styles collection.
Dim styleKey As Object
For Each styleKey In mytextBox.Style.Keys
dr = dt.NewRow()
dr(0) = CStr(styleKey)
dr(1) = mytextBox.Style(CStr(styleKey))
dt.Rows.Add(dr)
Next styleKey
Dim dv As New DataView(dt)
DataList1.DataSource = dv
DataList1.DataBind()
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>CssStyleCollection Example</title>
</head>
<body>
<form id="CSSForm" runat="server">
<div>
<input type="text"
id="mytextBox"
style="color:black;font: 12pt arial;"
runat="server"
name="mytextBox"/>
<br /> <br />
<input type="Button"
id="addBtn"
value="AddStyle"
onserverclick="AddBtn_Click"
runat="server"
name="addBtn"/>
<input type="Button"
id="removeBtn"
value="RemoveStyle"
onserverclick="RemoveButton_Click"
runat="server"
name="removeBtn"/>
<input type="Button"
id="clearBtn"
value="ClearStyle"
onserverclick="ClearButton_Click"
runat="server"
name="clearBtn"/>
<input type="Button"
id="showBtn"
value="ShowAllStyles"
onserverclick="ShowButton_Click"
runat="server"
name="showBtn"/>
<asp:DataList id="DataList1"
runat="server">
<HeaderStyle Font-Bold="true"/>
<HeaderTemplate>
CssStyleCollection
</HeaderTemplate>
<ItemTemplate>
Attribute:
<%# DataBinder.Eval(Container.DataItem, "AttributeName") %>
,
Value:
<%# DataBinder.Eval(Container.DataItem, "AttributeValue") %>
</ItemTemplate>
</asp:DataList>
</div>
</form>
</body>
</html>
Applies to
See also
GitHub पर हमारे साथ सहयोग करें
इस सामग्री का स्रोत GitHub पर पाया जा सकता है, जहाँ आप समस्याएँ बना और समीक्षा भी कर सकते हैं और अनुरोध खींच सकते हैं. अधिक जानकारी के लिए, हमारे योगदानकर्ता गाइड देखें.
