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将 TemplateField 字段列动态添加到 GridView 控件

2009-11-23 15:39 417 查看

<%@
Page language="C#"

%>

<script
runat="server"
>

// Create a
dynamic template column

public

class
GridViewTextTemplate :
System.Web.UI.ITemplate

{

private
DataControlRowType
templateType;

private
string

columnName;

private
string

cId;

public

GridViewTextTemplate(DataControlRowType type, string
colname, string
controlId)

{

templateType =
type;

columnName =
colname;

cId =
controlId;

}

public

void
InstantiateIn(System.Web.UI.Control
container)

{

//
Create the content for the different row types.

switch
(templateType)

{

case
DataControlRowType.Header:

// Create the controls and set id properties to put in the
header

myHeadLiteral.ID =
cId;

myHeadLiteral.Text = "<B>"
+ columnName + "</B>"
;

container.Controls.Add(myHeadLiteral);

break
;

case

DataControlRowType.DataRow:

// Create the controls and set id properties to put in a
data row

TextBox myTextBox = new
TextBox();

myTextBox.ID =
cId;

myTextBox.DataBinding +=
new
EventHandler(this
.TextBoxDataBinding);

container.Controls.Add(myTextBox);

break
;

default
:

// Insert code to handle unexpected
values.

break
;

}

}

private
void

TextBoxDataBinding(Object sender, EventArgs e)

{

TextBox myTextBox =
(TextBox)sender;

GridViewRow row =
(GridViewRow)myTextBox.NamingContainer;

myTextBox.Text =
System.Web.UI.DataBinder.Eval(row.DataItem,
columnName).ToString();

}

}

void

Page_Load(Object sender, EventArgs e)

{

// Create
the field columns when the page is first loaded.

if

(!IsPostBack)

{

TemplateField
tField;

//
Create the dynamic templates

tField = new
TemplateField();

tField.ItemTemplate = new
GridViewTextTemplate(DataControlRowType.DataRow,
"parameter_description"
, "textParameterDesc"
);

tField.HeaderTemplate = new
GridViewTextTemplate(DataControlRowType.Header,
"

说明"

,
"textParameterDescHd"
);

// Add
the dynamic templates field column to the GridView

GridView1.Columns.Add(tField);

}

}

</script>

<html>

<body>

<form id="Form1"
runat="server"
>

<asp:gridview id="GridView1"

datasourceid="TestSqlDataSource"

autogeneratecolumns="False"

runat="server"
>

</asp:gridview>

<asp:sqldatasource id="TestSqlDataSource"

selectcommand="Select * From
Parameter_Lines"

connectionstring="server=localhost;database=Test;integrated
security=SSPI"

runat="server"
>

</asp:sqldatasource>

</form>

</body>

</html>

from:http://www.cnblogs.com/Fortunelee/articles/505044.html

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