GridViewRow.RowType 属性
定义
获取 GridViewRow 对象的行类型。Gets the row type of the GridViewRow object.
public:
virtual property System::Web::UI::WebControls::DataControlRowType RowType { System::Web::UI::WebControls::DataControlRowType get(); void set(System::Web::UI::WebControls::DataControlRowType value); };
public virtual System.Web.UI.WebControls.DataControlRowType RowType { get; set; }
member this.RowType : System.Web.UI.WebControls.DataControlRowType with get, set
Public Overridable Property RowType As DataControlRowType
属性值
DataControlRowType 值之一。One of the DataControlRowType values.
示例
下面的示例演示如何使用 RowType 属性来确定所创建的行是否为脚注行。The following example demonstrates how to use the RowType property to determine whether a row being created is a footer row. 如果行是一个页脚行,则该列的总和的值将更新到页脚行中。If the row is a footer row, the value for the sum of the column is updated into the footer row.
<%@ Page language="C#" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
// Create a variable to store the order total.
private Decimal orderTotal = 0.0M;
void OrderGridView_RowCreated(Object sender, GridViewRowEventArgs e)
{
// Retrieve the current row.
GridViewRow row = e.Row;
// Update the column total if the row being created is
// a footer row.
if (row.RowType == DataControlRowType.Footer)
{
// Get the OrderTotalTotal Label control in the footer row.
Label total = (Label)e.Row.FindControl("OrderTotalLabel");
// Display the grand total of the order formatted as currency.
if (total != null)
{
total.Text = orderTotal.ToString("c");
}
}
}
void OrderGridView_RowDataBound(Object sender, GridViewRowEventArgs e)
{
// Retrieve the current row.
GridViewRow row = e.Row;
// Add the field value to the column total if the row being created is
// a data row.
if (row.RowType == DataControlRowType.DataRow)
{
// Get the cell that contains the item total.
TableCell cell = e.Row.Cells[2];
// Get the DataBoundLiteralControl control that contains the
// data bound value.
DataBoundLiteralControl boundControl = (DataBoundLiteralControl)cell.Controls[0];
// Remove the '$' character for the type converter to work properly.
String itemTotal = boundControl.Text.Replace("$", "");
// Add the total for an item (row) to the order total.
orderTotal += Convert.ToDecimal(itemTotal);
}
}
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridViewRow RowType Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridViewRow RowType Example</h3>
<!-- Populate the Columns collection declaratively. -->
<!-- Create a custom TemplateField column that uses -->
<!-- two Label controls to display an author's first and -->
<!-- last name in the same column. -->
<asp:gridview id="OrderGridView"
datasourceid="OrderSqlDataSource"
autogeneratecolumns="False"
showfooter="true"
onrowcreated="OrderGridView_RowCreated"
onrowdatabound="OrderGridView_RowDataBound"
runat="server">
<columns>
<asp:boundfield datafield="UnitPrice"
itemstyle-horizontalalign="Right"
headertext="Unit Price"
dataformatstring="{0:c}"/>
<asp:boundfield datafield="Quantity"
itemstyle-horizontalalign="Right"
headertext="Quantity"/>
<asp:templatefield headertext="Total"
itemstyle-horizontalalign="Right"
footerstyle-horizontalalign="Right"
footerstyle-backcolor="Blue"
footerstyle-forecolor="White">
<itemtemplate>
<%#Eval("Total", "{0:c}") %>
</itemtemplate>
<footertemplate>
<asp:label id="OrderTotalLabel"
runat="server"/>
</footertemplate>
</asp:templatefield>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="OrderSqlDataSource"
selectcommand="SELECT [OrderID], [UnitPrice], [Quantity], [UnitPrice]*[Quantity] As [Total] FROM [order details] WHERE [OrderID]=10248"
connectionstring="server=localhost;database=northwind;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
<%@ Page language="VB" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN"
"http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">
<script runat="server">
' Create a variable to store the order total.
Private orderTotal As Decimal = 0.0
Sub OrderGridView_RowCreated(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
' Retrieve the current row.
Dim row As GridViewRow = e.Row
' Update the column total if the row being created is
' a footer row.
If row.RowType = DataControlRowType.Footer Then
' Get the OrderTotalTotal Label control in the footer row.
Dim total As Label = CType(e.Row.FindControl("OrderTotalLabel"), Label)
' Display the grand total of the order formatted as currency.
If (Not total Is Nothing)
total.Text = orderTotal.ToString("c")
End If
End If
End Sub
Sub OrderGridView_RowDataBound(ByVal sender As Object, ByVal e As GridViewRowEventArgs)
' Retrieve the current row.
Dim row As GridViewRow = e.Row
' Add the field value to the column total if the row being created is
' a data row.
If row.RowType = DataControlRowType.DataRow Then
' Get the cell that contains the item total.
Dim cell As TableCell = e.Row.Cells(2)
' Get the DataBoundLiteralControl control that contains the
' data bound value.
Dim boundControl As DataBoundLiteralControl = CType(cell.Controls(0), DataBoundLiteralControl)
' Remove the '$' character for the type converter to work properly.
Dim itemTotal As String = boundControl.Text.Replace("$", "")
' Add the total for an item (row) to the order total.
orderTotal += Convert.ToDecimal(itemTotal)
End If
End Sub
</script>
<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
<title>GridViewRow RowType Example</title>
</head>
<body>
<form id="form1" runat="server">
<h3>GridViewRow RowType Example</h3>
<!-- Populate the Columns collection declaratively. -->
<!-- Create a custom TemplateField column that uses -->
<!-- two Label controls to display an author's first and -->
<!-- last name in the same column. -->
<asp:gridview id="OrderGridView"
datasourceid="OrderSqlDataSource"
autogeneratecolumns="False"
showfooter="true"
onrowcreated="OrderGridView_RowCreated"
onrowdatabound="OrderGridView_RowDataBound"
runat="server">
<columns>
<asp:boundfield datafield="UnitPrice"
itemstyle-horizontalalign="Right"
headertext="Unit Price"
dataformatstring="{0:c}"/>
<asp:boundfield datafield="Quantity"
itemstyle-horizontalalign="Right"
headertext="Quantity"/>
<asp:templatefield headertext="Total"
itemstyle-horizontalalign="Right"
footerstyle-horizontalalign="Right"
footerstyle-backcolor="Blue"
footerstyle-forecolor="White">
<itemtemplate>
<%#Eval("Total", "{0:c}") %>
</itemtemplate>
<footertemplate>
<asp:label id="OrderTotalLabel"
runat="server"/>
</footertemplate>
</asp:templatefield>
</columns>
</asp:gridview>
<!-- This example uses Microsoft SQL Server and connects -->
<!-- to the Northwind sample database. -->
<asp:sqldatasource id="OrderSqlDataSource"
selectcommand="SELECT [OrderID], [UnitPrice], [Quantity], [UnitPrice]*[Quantity] As [Total] FROM [order details] WHERE [OrderID]=10248"
connectionstring="server=localhost;database=northwind;integrated security=SSPI"
runat="server">
</asp:sqldatasource>
</form>
</body>
</html>
注解
使用 RowType 属性可确定对象表示的行的类型 GridViewRow 。Use the RowType property to determine the type of row that the GridViewRow object represents. 下表使用枚举列出了不同的行类型值 DataControlRowType 。The following table lists the different row type values using the DataControlRowType enumeration.
| 行类型Row type | 说明Description |
|---|---|
| DataRow | 控件中的数据行 GridView 。A data row in the GridView control. |
| Footer | 控件中的脚注行 GridView 。The footer row in the GridView control. |
| Header | 控件中的标题行 GridView 。The header row in the GridView control. |
| EmptyDataRow | 控件中的空行 GridView 。The empty row in the GridView control. 当 GridView 控件没有任何要显示的记录时,将显示空行。The empty row is displayed when GridView control does not have any records to display. |
| Pager | 控件中的页导航行 GridView 。A pager row in the GridView control. |
| Separator | 控件中的分隔行 GridView 。A separator row in the GridView control. |
此属性通常用于在执行操作之前确定行的类型。This property is commonly used to determine a row's type before performing an operation.