Здравствуйте! Не могу сохранить данные из TextBox который находится в ListView. Для сохранения данных использую функцию Update ListView.

<asp:ListView ID="lv_ShowPhoto" runat="server" ItemPlaceholderID="PlaceHolder1" OnItemEditing="EditListViewItem"

OnItemCanceling="CancelListViewItem" OnItemUpdating="UpdateListViewItem" DataKeyNames="id"

OnPagePropertiesChanging="PagePropertiesChanging" OnItemInserting="InsertListViewItem"

InsertItemPosition="LastItem" OnItemDeleting="DeleteListViewItem" border="0.01px"
>

<LayoutTemplate>

<table width="100%" cellpadding="4" cellspacing="0" style="background-color: #FFFFDF" >

<tr >

<th style="width: 70%;">

<!--<asp:LinkButton ID="lnkSort1" runat="server" CommandName="Sort" CommandArgument="Name" Text="Name" />-->

</th>







</tr>

<asp:PlaceHolder ID="PlaceHolder1" runat="server"></asp:PlaceHolder>

</table>

</LayoutTemplate>

<ItemTemplate >
<tr >
<td >
<asp:Label ID="lb_id" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label><br/>
</td>
</tr>
<tr >
<td >
<asp:Image ID="Image1" runat="server" height="300px" weight="300px" ImageUrl='<%# Eval("NamePhoto") %>'/><br/>
</td>
</tr>
<tr >
<td >
<asp:Label ID="Label2" runat="server" Text='<%# Eval("Comment") %>'></asp:Label><br/>
</td>
</tr>
<tr >
<td >

<asp:LinkButton ID="LinkButton1" runat="server" Text="Изменить" CommandName="Edit" />

</td>
</tr>
<tr >
<td >
<span onclick="return confirm('Вы желаете удалить фото?')">
<asp:LinkButton ID="LinkButton3" runat="server" Text="Удалить" CommandName="Delete" ForeColor="Brown"/>
</span>
</td>
</tr>
</ItemTemplate>

<EditItemTemplate>
<tr >
<td>
<asp:Label ID="lb_id" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label><br/>
</td>
</tr>
<tr >
<td>
<asp:Image ID="Image2" runat="server" height="300px" weight="300px" ImageUrl='<%# Eval("NamePhoto") %>'/><br/>
</td>
</tr>
<tr >
<td>
<asp:TextBox ID="TextBox1" runat="server" Height="50px" TextMode="MultiLine" Width="300px"></asp:TextBox><br />
</td>
</tr>
<tr >
<td>
<asp:CheckBox ID="CheckBox1" Text="Сделать главной" runat="server" /><br/>
</td>
</tr>
<tr >
<td>
<span onclick="return confirm('Вы хотите внести изменения?')">
<asp:LinkButton ID="LinkButton2" runat="server" Text="Сохранить" CommandName="Update" />
</span>
</td>
</tr>
<tr >
<td>
<asp:LinkButton ID="LinkButton5" runat="server" Text="Закрыть" CommandName="Cancel" />
</td>
</tr>
</EditItemTemplate>
<InsertItemTemplate>

<tr >

<td>
<!--<asp:Label ID="lb_id" runat="server" Text='<%# Eval("id") %>' Visible="False"></asp:Label><br/>-->
<!--<asp:Image ID="im" runat="server" height="300px" weight="300px" ImageUrl='<%# Eval("NamePhoto")%>'/><br/>-->
<!--<asp:TextBox ID="lb_Comment" runat="server" Text='<%# Eval("Comment") %>'></asp:TextBox><br/>-->
<!--<asp:CheckBox ID="cb_MainPhoto" Text="Сделать главной" runat="server" /><br/>-->
</td>





<td>

<!--<span onclick="return confirm('Are you sure to insert?')">-->

<!--<asp:LinkButton ID="btnInsert" runat="server" Text="Insert" CommandName="Insert" />-->

</span>

</td>

</tr>

</InsertItemTemplate>


</asp:ListView>





protected void EditListViewItem(object sender, ListViewEditEventArgs e)
{
lv_ShowPhoto.EditIndex = e.NewEditIndex;
string SelectId = SqlClass.SelectCommand("SELECT id From Users WHERE Login = '" + Session["E"].ToString() + "' or Email = '" + Session["E"].ToString() + " '");
SqlDataAdapter da = new SqlDataAdapter("Select * From UsersPhotos where idReg=" + SelectId, SqlClass.GetConnectionString());
DataTable dt = new DataTable();
da.Fill(dt);
lv_ShowPhoto.DataSource = dt;
DataBind();

}

protected void CancelListViewItem(object sender, ListViewCancelEventArgs e)
{
lv_ShowPhoto.EditIndex = -1;
string SelectId = SqlClass.SelectCommand("SELECT id From Users WHERE Login = '" + Session["E"].ToString() + "' or Email = '" + Session["E"].ToString() + " '");
SqlDataAdapter da = new SqlDataAdapter("Select * From UsersPhotos where idReg=" + SelectId, SqlClass.GetConnectionString());
DataTable dt = new DataTable();
da.Fill(dt);
lv_ShowPhoto.DataSource = dt;
DataBind();
}

protected void UpdateListViewItem(object sender, ListViewUpdateEventArgs e)
{
ListViewItem item = lv_ShowPhoto.Items[e.ItemIndex];

int autoID = int.Parse(lv_ShowPhoto.DataKeys[e.ItemIndex].Value.ToString());
TextBox tComment = (TextBox)item.FindControl("tb_Comment");
string SelectId = SqlClass.SelectCommand("SELECT id From Users WHERE Login = '" + Session["E"].ToString() + "' or Email = '" + Session["E"].ToString() + " '");
SqlDataAdapter da = new SqlDataAdapter("update UsersPhotos set Comment = '" + tComment.Text.Trim() + "' where idReg=" + SelectId + " and id = " + autoID, SqlClass.GetConnectionString());
DataTable dt = new DataTable();
da.Fill(dt);
lv_ShowPhoto.DataSource = dt;
DataBind();

CancelListViewItem(null,null);
// insert records into database


lv_ShowPhoto.EditIndex = -1;
}