Use asp datagrid to edit data in XML
<%--
Beginning ASP.NET 1.0 with C# (Paperback)
by David Sussman, Chris Ullman,
Juan T. Llibre, John Kauffman,
Ollie Cornes, Ajoy Krishnamoorthy,
Srinivasa Sivakumar, Chris Goode,
Neil Raybould, Christopher Miller,
Rob Birdwell, Matt Butler, Gary Johnson
# Publisher: Wrox Press; 1st edition (June 2002)
# Language: English
# ISBN: 1861007345
--%>
<%@ Import Namespace="System.Data" %>
<%@ Import Namespace="System.IO" %>
<%@ Import Namespace="System.Globalization" %>
<script Language="c#" runat="server">
void Page_Load(object sender, EventArgs e)
{
if (!(Page.IsPostBack))
{
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
}
protected DataSet LoadMyCalendarData()
{
string sourceXml = Server.MapPath("MyCalendar.xml");
if (!(File.Exists(sourceXml)))
{
return null;
}
DataSet cachedDataSet = (DataSet)Session["MyCalendarData"];
if (!(cachedDataSet == null))
{
return cachedDataSet;
}
DataSet dataSet = new DataSet();
try
{
dataSet.ReadXml(sourceXml);
Session["MyCalendarData"] = dataSet;
}
catch (Exception e)
{
ErrorMessage.Text = e.Message;
dataSet = null;
}
return dataSet;
}
void DEDR_Edit(object sender, DataGridCommandEventArgs e)
{
EventData.EditItemIndex = Convert.ToInt32(e.Item.ItemIndex);
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
void DEDR_Update(object sender, DataGridCommandEventArgs e)
{
DataSet dataSet = LoadMyCalendarData();
int row = Convert.ToInt32(e.Item.ItemIndex);
TextBox EditText = null;
EditText = (TextBox)e.Item.FindControl("txtShortDesc");
dataSet.Tables[0].Rows[row]["ShortDesc"] = EditText.Text;
EditText = (TextBox)e.Item.FindControl("txtDetailDesc");
dataSet.Tables[0].Rows[row]["DetaiLDesc"] = EditText.Text;
EditText = (TextBox)e.Item.FindControl("txtEventDate");
dataSet.Tables[0].Rows[row]["EventDate"]= EditText.Text;
EditText = (TextBox)e.Item.FindControl("txtStartTime");
dataSet.Tables[0].Rows[row]["StartTime"] = EditText.Text;
EditText = (TextBox)e.Item.FindControl("txtEndTime");
dataSet.Tables[0].Rows[row]["EndTime"] = EditText.Text;
dataSet.WriteXml(Server.MapPath("MyCalendar.xml"));
Session["MyCalendarData"] = null;
EventData.EditItemIndex = -1;
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
void DEDR_Cancel(object sender, DataGridCommandEventArgs e)
{
EventData.EditItemIndex = -1;
Session["MyCalendarData"] = null;
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
void DEDR_Delete(object sender, DataGridCommandEventArgs e)
{
DataSet dataSet = LoadMyCalendarData();
int row = Convert.ToInt32(e.Item.ItemIndex);
dataSet.Tables[0].Rows[row].Delete();
dataSet.WriteXml(Server.MapPath("MyCalendar.xml"));
Session["MyCalendarData"] = null;
EventData.EditItemIndex = -1;
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
void DEDR_Add(object sender, EventArgs e)
{
DataSet dataSet = LoadMyCalendarData();
DataRow newRow;
newRow = dataSet.Tables[0].NewRow();
newRow["ShortDesc"] = "";
newRow["DetailDesc"] = "";
newRow["EventDate"] = "";
newRow["StartTime"] = "";
newRow["EndTime"] = "";
dataSet.Tables[0].Rows.Add(newRow);
dataSet.WriteXml(Server.MapPath("MyCalendar.xml"));
Session["MyCalendarData"] = null;
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
EventData.EditItemIndex = EventData.Items.Count - 1;
EventData.DataSource = LoadMyCalendarData();
EventData.DataBind();
}
</script>
<html>
<body>
<form runat="server">
<asp:Label id="ErrorMessage" runat="server" /><br/>
<asp:LinkButton OnClick="DEDR_Add" Text="Add new event"
runat="server"/><br/>
<asp:DataGrid id="EventData"
AutoGenerateColumns="false" width="100%" runat="server"
OnEditCommand="DEDR_Edit"
OnUpdateCommand="DEDR_Update"
OnCancelCommand="DEDR_Cancel"
OnDeleteCommand="DEDR_Delete">
<HeaderStyle ForeColor="White" BackColor="DodgerBlue"
Font-Bold="true"/>
<ItemStyle BackColor="White"/>
<AlternatingItemStyle BackColor="Gainsboro"/>
<Columns>
<asp:TemplateColumn HeaderText="Date">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "EventDate") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEventDate" Size="25";
Text='<%# DataBinder.Eval(Container.DataItem,"EventDate") %>'
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="Event">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "ShortDesc") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtShortDesc" Size="25";
Text='<%# DataBinder.Eval(Container.DataItem,"ShortDesc") %>'
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="Description">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "DetailDesc") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtDetailDesc" Size="50"
Text='<%# DataBinder.Eval(Container.DataItem, "DetailDesc") %>'
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="Start Time">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "StartTime") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtStartTime" Size="7"
Text='<%# DataBinder.Eval(Container.DataItem, "StartTime") %>'
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn HeaderText="EndTime">
<ItemTemplate>
<%# DataBinder.Eval(Container.DataItem, "EndTime") %>
</ItemTemplate>
<EditItemTemplate>
<asp:TextBox id="txtEndTime" Size="7"
Text='<%# DataBinder.Eval(Container.DataItem, "EndTime") %>'
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
<asp:TemplateColumn>
<ItemTemplate>
<asp:LinkButton CommandName="Edit" Text="Edit"
runat="server"/>
<asp:LinkButton CommandName="Delete" Text="Delete"
runat="server"/>
</ItemTemplate>
<EditItemTemplate>
<asp:LinkButton CommandName="Cancel" Text="Cancel"
runat="server"/>
<asp:LinkButton CommandName="Update" Text="Update"
runat="server"/>
</EditItemTemplate>
</asp:TemplateColumn>
</Columns>
</asp:DataGrid>
</form>
</body>
</html>
<%--
<?xml version="1.0" standalone="yes"?>
<MyCalendar>
<Event>
<ShortDesc>Gig in Portland - Jazz Club</ShortDesc>
<DetailDesc>This should be fun - playing J & T again - be sure to bring the charts.</DetailDesc>
<EventDate>2002/07/02</EventDate>
<StartTime>6:00PM</StartTime>
<EndTime>11:30PM</EndTime>
</Event>
<Event>
<ShortDesc> Rehearsal - Brigadoon</ShortDesc>
<DetailDesc>Community Theatre orchestra rehearsal - bring mutes.</DetailDesc>
<EventDate>2002/07/14</EventDate>
<StartTime>3:30PM</StartTime>
<EndTime>6:30PM</EndTime>
</Event>
<Event>
<ShortDesc>.NET Training Class</ShortDesc>
<DetailDesc>This should be fun - we'll explore some of the really cool stuff, like ASP.NET server controls and Web Services.</DetailDesc>
<EventDate>2002/07/17</EventDate>
<StartTime>8:00AM</StartTime>
<EndTime>4:30PM</EndTime>
</Event>
<Event>
<ShortDesc>Writing Workshop for Musical Project with Gregg</ShortDesc>
<DetailDesc>We're going to brainstorm some ideas and see if we can come up with something great. We're off to a good start.</DetailDesc>
<EventDate>2002/07/19</EventDate>
<StartTime>10:00AM</StartTime>
<EndTime>6:30PM</EndTime>
</Event>
<Event>
<ShortDesc>Community Band</ShortDesc>
<DetailDesc>Central park - we'll play everything from standards to shows tunes to classical to marches - you name it. People bring their lawn chairs, eat their dinner, kids play - a great time!</DetailDesc>
<EventDate>2002/07/24</EventDate>
<StartTime>7:00PM</StartTime>
<EndTime>9:00PM</EndTime>
</Event>
<Event>
<ShortDesc>Jam Session at the Beach</ShortDesc>
<DetailDesc>Bring more food this time and the crab nets - and the instruments! We'll might stay for a week or so depending on the weather.</DetailDesc>
<EventDate>2002/07/21</EventDate>
<StartTime>8:00AM</StartTime>
<EndTime>11:30PM</EndTime>
</Event>
<Event>
<ShortDesc>Rob's Birthday!</ShortDesc>
<DetailDesc>Nothing too fancy - just friends and family. Hope it's a nice day - bike ride would be fun.</DetailDesc>
<EventDate>2002/07/30</EventDate>
<StartTime>6:09PM</StartTime>
<EndTime>11:30PM</EndTime>
</Event>
<Event>
<ShortDesc />
<DetailDesc />
<EventDate />
<StartTime />
<EndTime />
</Event>
<Event>
<ShortDesc>Event</ShortDesc>
<DetailDesc>Number </DetailDesc>
<EventDate>Wrox</EventDate>
<StartTime>6.00</StartTime>
<EndTime>11.30</EndTime>
</Event>
</MyCalendar>
--%>
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