This article describes how to use CRUD (Create, Read, Update, Delete) Operation using ListView using XML database in ASP.NET.
First of all add a new XML file using add new item...here is a XML file I took from an article in www.c-sharpcorner.com.
MovieDB.xml
<?xml version="1.0" encoding="utf-8" standalone="yes"?>
<Movies>
<Movie>
<Name>Scanner Darklya</Name>
<Year>2009</Year>
<Genre>Drama, Crime, Animation</Genre>
<Cast>Keanu Reeves</Cast>
</Movie>
<Movie>
<Name>Afro Samurai: Resurrection</Name>
<Year>2009</Year>
<Genre>Animation, Action</Genre>
<Cast>No Cast</Cast>
</Movie>
<Movie>
<Name>Batman: Gotham Knight</Name>
<Year>2009</Year>
<Genre>Animation, Action</Genre>
<Cast>Batman</Cast>
</Movie>
<Movie>
<Name>Bedazzled</Name>
<Year>2009</Year>
<Genre>Thriller, Comedy</Genre>
<Cast>Brendan Fraser, Elizabeth Hurley</Cast>
</Movie>
<Movie>
<Name>Bedtime Stories</Name>
<Year>2009</Year>
<Genre>Drama, Comedy</Genre>
<Cast>Adam Sanders, Courtney Cox</Cast>
</Movie>
</Movies>
Now create a new asp.net application and drag and drop a ListView control from toolbox.
<asp:ListView ID="MoviesListView" runat="server"
InsertItemPosition="LastItem" OnItemInserting="MoviesListView_ItemInserting"
OnItemDeleting="MoviesListView_ItemDeleting" OnItemEditing="MoviesListView_ItemEditing"
OnItemCanceling="MoviesListView_ItemCanceling" >
<LayoutTemplate>
<table id="Table1" runat="server" width=100%>
<tr id="Tr1" runat="server">
<td id="Td1" runat="server">
<table id="itemPlaceholderContainer" runat="server" border="0" style="" width=100%>
<tr id="Tr2" runat="server" style="">
<th id="Th1" runat="server"></th>
<th id="Th2" runat="server">Name</th>
<th id="Th3" runat="server">Year</th>
<th id="Th4" runat="server">Genre</th>
<th id="Th5" runat="server">Cast</th>
</tr>
<tr id="itemPlaceholder" runat="server"></tr></table></td></tr>
<tr id="Tr3" runat="server">
<td id="Td2" runat="server" style=""></td>
</tr>
</table>
</LayoutTemplate>
<ItemTemplate>
<tr style="">
<td>
<asp:Button ID="DeleteButton" runat="server" CommandName="Delete" Text="Delete" />
<asp:Button ID="EditButton" runat="server" CommandName="Edit" Text="Edit" />
</td>
<td><asp:Label ID="lblName" runat="server" Text='<%# Bind("Name") %>' /></td>
<td><asp:Label ID="lblYear" runat="server" Text='<%# Bind("Year") %>' /></td>
<td><asp:Label ID="lblGenre" runat="server" Text='<%# Bind("Genre") %>' /></td>
<td><asp:Label ID="lblCast" runat="server" Text='<%# Bind("Cast") %>' /></td>
</tr>
</ItemTemplate>
<InsertItemTemplate>
<tr style="">
<td>
<asp:Button ID="InsertButton" runat="server" CommandName="Insert" Text="Insert" />
<asp:Button ID="CancelButton" runat="server" CommandName="Cancel" Text="Clear" />
</td>
<td><asp:TextBox ID="txtName" runat="server" Text='<%# Bind("Name") %>' /></td>
<td><asp:TextBox ID="txtYear" runat="server" Text='<%# Bind("Year") %>' /></td>
<td><asp:TextBox ID="txtGenre" runat="server" Text='<%# Bind("Genre") %>' /></td>
<td><asp:TextBox ID="txtCast" runat="server" Text='<%# Bind("Cast") %>' /></td>
<td><asp:Button ID="btnUpdate" runat="server" Text="Update" OnClick="btnUpdate_Click" /></td>
</tr>
</InsertItemTemplate>
</asp:ListView>
Code
using System.Data;
using System.Xml;
string xmlfile = @"C:\Documents and Settings\rsaxena.MCNSOLUTIONS\My Documents\Visual Studio 2008\WebSites\ListViewCRUDWithXMl\MovieDB.xml";
protected void Page_Load(object sender, EventArgs e)
{
if (!Page.IsPostBack)
{
LoadData();
}
}
protected void LoadData()
{
DataSet ds = new DataSet();
DataTable table = new DataTable();
ds.ReadXml(xmlfile);
MoviesListView.DataSource = ds;
MoviesListView.DataBind();
}
protected void MoviesListView_ItemInserting(object sender, ListViewInsertEventArgs e)
{
TextBox txtNameTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtName");
TextBox txtYearTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtYear");
TextBox txtGenreTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtGenre");
TextBox txtCastTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtCast");
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xmlfile);
XmlElement xelement = xmlDoc.CreateElement("Movie");
XmlElement xName = xmlDoc.CreateElement("Name");
xName.InnerText = txtNameTextBox.Text;
xelement.AppendChild(xName);
XmlElement xYear = xmlDoc.CreateElement("Year");
xYear.InnerText = txtYearTextBox.Text;
xelement.AppendChild(xYear);
XmlElement xGenre = xmlDoc.CreateElement("Genre");
xGenre.InnerText = txtGenreTextBox.Text;
xelement.AppendChild(xGenre);
XmlElement xCast = xmlDoc.CreateElement("Cast");
xCast.InnerText = txtCastTextBox.Text;
xelement.AppendChild(xCast);
xmlDoc.DocumentElement.AppendChild(xelement);
xmlDoc.Save(xmlfile);
LoadData();
}
static Int16 i = 0;
protected void MoviesListView_ItemEditing(object sender, ListViewEditEventArgs e)
{
MoviesListView.EditIndex = e.NewEditIndex;
i = Convert.ToInt16(MoviesListView.EditIndex);
Label lblName = (Label)MoviesListView.EditItem.FindControl("lblName");
Label lblYear = (Label)MoviesListView.EditItem.FindControl("lblYear");
Label lblGenre = (Label)MoviesListView.EditItem.FindControl("lblGenre");
Label lblCast = (Label)MoviesListView.EditItem.FindControl("lblCast");
TextBox txtnameTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtName");
TextBox txtYearTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtYear");
TextBox txtGenreTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtGenre");
TextBox txtCastTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtCast");
txtnameTextBox.Text = lblName.Text;
txtYearTextBox.Text = lblYear.Text;
txtGenreTextBox.Text = lblGenre.Text;
txtCastTextBox.Text = lblCast.Text;
}
protected void MoviesListView_ItemDeleting(object sender, ListViewDeleteEventArgs e)
{
Label lblName = (MoviesListView.Items[e.ItemIndex].FindControl("lblName")) as Label;
Label lblYear = (MoviesListView.Items[e.ItemIndex].FindControl("lblYear")) as Label;
Label lblGenre = (MoviesListView.Items[e.ItemIndex].FindControl("lblGenre")) as Label;
Label lblCast = (MoviesListView.Items[e.ItemIndex].FindControl("lblCast")) as Label;
XmlDocument xmlDoc = new XmlDocument();
xmlDoc.Load(xmlfile);
XmlNodeList newXMLNodes = xmlDoc.SelectNodes("/Movies/Movie");
string value = lblName.Text;
foreach (XmlNode newXMLNode in newXMLNodes)
{
if (newXMLNode.InnerText == value)
{
newXMLNode.ParentNode.RemoveChild(newXMLNode);
}
}
xmlDoc.Save(xmlfile);
xmlDoc = null;
LoadData();
}
protected void MoviesListView_ItemCanceling(object sender, ListViewCancelEventArgs e)
{
TextBox txtNameTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtName");
TextBox txtYearTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtYear");
TextBox txtGenreTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtGenre");
TextBox txtCastTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtCast");
txtNameTextBox.Text = string.Empty;
txtYearTextBox.Text = string.Empty;
txtGenreTextBox.Text = string.Empty;
txtCastTextBox.Text = string.Empty;
}
protected void btnUpdate_Click(object sender, EventArgs e)
{
TextBox txtNameTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtName");
TextBox txtYearTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtYear");
TextBox txtGenreTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtGenre");
TextBox txtCastTextBox = (TextBox)MoviesListView.InsertItem.FindControl("txtCast");
XmlDocument xmldoc = new XmlDocument();
xmldoc.Load(xmlfile);
XmlNode xmlnode = xmldoc.DocumentElement.ChildNodes.Item(i);
xmlnode["Name"].InnerText = txtNameTextBox.Text;
xmlnode["Year"].InnerText = txtYearTextBox.Text;
xmlnode["Genre"].InnerText = txtGenreTextBox.Text;
xmlnode["Cast"].InnerText = txtCastTextBox.Text;
xmldoc.Save(xmlfile);
LoadData();
}
Now it's time to run the application and see the result.
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