listview not updating,inserting
- by raging_boner
Data entered in textboxes is not getting updated in database. In debug mode I see that textbox1 and textbox2 in ItemUpdating event contain the same values as they had before calling ItemUpdating.
Here's my listview control:
<asp:ListView ID="ListView1" runat="server"
onitemediting="ListView1_ItemEditing"
onitemupdating="ListView1_ItemUpdating"
oniteminserting="ListView1_ItemInserting">
//LayoutTemplate removed
<ItemTemplate>
<td align="center" valign="top">
<asp:Label ID="Label2" runat="server" Text='<%#Eval("id")%>'></asp:Label><br />
<asp:Label ID="Label3" runat="server" Text='<%#Eval("text1")%>'></asp:Label>
</td>
<td>
<asp:LinkButton ID="LinkButton2" CommandName="Edit" runat="server">Edit</asp:LinkButton>
<asp:LinkButton ID="LinkButton4" CommandName="Delete" runat="server">Delete</asp:LinkButton>
</td>
</ItemTemplate>
<EditItemTemplate>
<td align="center" valign="top">
<asp:Label ID="Label1" runat="server" Text='<%#Eval("id")%>'></asp:Label>
<asp:TextBox ID="TextBox1" runat="server" Text='<%#Eval("text1")%>' TextMode="MultiLine" />
<asp:TextBox ID="TextBox2" runat="server" Text='<%#Eval("text2")%>' Height="100" TextMode="MultiLine" />
<asp:LinkButton ID="LinkButton1" CommandName="Update" CommandArgument='<%# Eval("id")%>' runat="server">Update</asp:LinkButton>
<asp:LinkButton ID="LinkButton5" CommandName="Cancel" runat="server">Cancel</asp:LinkButton>
</td>
</EditItemTemplate>
<InsertItemTemplate>
<td align="center" valign="top">
<asp:TextBox ID="TextBox3" runat="server" TextMode="MultiLine" Height="100"></asp:TextBox>
<asp:TextBox ID="TextBox4" runat="server" Height="100" TextMode="MultiLine"></asp:TextBox><br/>
<asp:LinkButton ID="LinkButton3" runat="server">Insert</asp:LinkButton>
</td>
</InsertItemTemplate>
</asp:ListView>
Codebehind file:
protected void ListView1_ItemEditing(object sender, ListViewEditEventArgs e)
{
ListView1.EditIndex = e.NewEditIndex;
BindList();
}
protected void ListView1_ItemUpdating(object sender, ListViewUpdateEventArgs e)
{
ListViewItem myItem = ListView1.Items[ListView1.EditIndex];
Label id = (Label)myItem.FindControl("Label1");
int dbid = int.Parse(id.Text);
TextBox text1 = (TextBox)myItem.FindControl("Textbox1");
TextBox text2 = (TextBox)myItem.FindControl("Textbox2");
//tried to work withNewValues below, but they don't work, "null reference" error is being thrown
//text1.Text = e.NewValues["text1"].ToString();
//text2.Text = e.NewValues["text2"].ToString();
//odbc connection routine removed.
//i know that there should be odbc parameteres:
comm = new OdbcCommand("UPDATE table SET text1 = '" + text1.Text + "', text2 = '" + text2.Text + "' WHERE id = '" + dbid + "'", connection);
comm.ExecuteNonQuery();
conn.Close();
ListView1.EditIndex = -1;
//here I databind ListView1
}
What's wrong with updating of text1.Text, text2.Text in ItemUpdating event? Should I use e.NewValues property? If so, how to use it?
Thanks in advance for any help.
