GridView is not Refreshing after deleting record. How do i make it refresh.

I created a page where i have GridView and a DetailView.  The DetailView is filled using the GridViews key as parameter.  But after I finish doing any update nither the GridView nor the DetailView refreshes the changes.  What am I missing?


Thanks for any suggestions?

1/12/2006 2:04:28 PM 91979 articles. 3 followers. Follow

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First, verify that your database doesnt actually still contain the record your trying to delete.  It's very common to assume that the record was deleted, when in fact it still exists.

Second, check caching, if your doing web caching, your not going to be hitting the database each time the page reloads.  Which means, until the cache refreshes, your not going to see that the record was deleted.


Bryan Sampica
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1/12/2006 3:44:33 PM

Thanks a lot for your answer,


But I still do not get the SqlDataSource1 to refresh the GridView.  The cache duration is set to Infinite and the CacheExpirationPolicy is set to absolute.

The DetailView (Wich used SqlDataSource2) is doing its job, becase It updates the database.  And if I close and load again the changes take effect.

I am going to copy/paste the code just if you want to take a look at it.



<%@ Page Language="VB" AutoEventWireup="false" CodeFile="Agencias.aspx.vb" Inherits="Agencias" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "">

<html xmlns="" >

<head runat="server">

<title>Untitled Page</title>


<body bottommargin="5">

<form id="form1" runat="server">

<div align="center">

<asp:SqlDataSource ID="SqlDataSourceAgencias" runat="server" ConnectionString="<%$ ConnectionStrings:Registro_ExpedienteConnectionString %>"

SelectCommand="SELECT [Siglas], [Nombre_agencia] FROM [tblAgencias] ORDER BY [Siglas], [Nombre_agencia]" DeleteCommand="DELETE FROM [tblAgencias] WHERE [Siglas] = @Siglas" InsertCommand="INSERT INTO [tblAgencias] ([Siglas], [Nombre_agencia]) VALUES (@Siglas, @Nombre_agencia)" UpdateCommand="UPDATE [tblAgencias] SET [Nombre_agencia] = @Nombre_agencia WHERE [Siglas] = @Siglas">


<asp:Parameter Name="Siglas" Type="String" />



<asp:Parameter Name="Nombre_agencia" Type="String" />

<asp:Parameter Name="Siglas" Type="String" />



<asp:Parameter Name="Siglas" Type="String" />

<asp:Parameter Name="Nombre_agencia" Type="String" />



<br />

<asp:Label ID="lblErrorMessage" runat="server" ForeColor="#FF8080" Style="position: relative"></asp:Label><br />

<strong style="font-size: 30pt">AGENCIAS</strong><br />

<br />

<br />


<asp:GridView ID="GridView1" runat="server" AllowPaging="True" AllowSorting="True"

AutoGenerateColumns="False" CellPadding="4" DataKeyNames="Siglas" DataSourceID="SqlDataSourceAgencias"

GridLines="None" HorizontalAlign="Center" Style="position: relative; left: -14px; top: -14px;" Width="741px" ForeColor="#333333">

<FooterStyle BackColor="#1C5E55" ForeColor="White" Font-Bold="True" />



ShowSelectButton="True" />

<asp:BoundField DataField="Siglas" HeaderText="Siglas" ReadOnly="True" SortExpression="Siglas" />

<asp:BoundField DataField="Nombre_agencia" HeaderText="Agencia" SortExpression="Nombre_agencia" />


<RowStyle BackColor="#E3EAEB" />

<SelectedRowStyle BackColor="#C5BBAF" Font-Bold="True" ForeColor="#333333" />

<PagerStyle BackColor="#666666" ForeColor="White" HorizontalAlign="Center" />

<HeaderStyle BackColor="#1C5E55" Font-Bold="True" ForeColor="White" />

<AlternatingRowStyle BackColor="White" />

<EditRowStyle BackColor="#7C6F57" />



<asp:DetailsView ID="DetailsView1" runat="server" AutoGenerateRows="False" DataKeyNames="Siglas"

DataSourceID="SqlDataSourceAgenciaDetalles" Height="50px" HorizontalAlign="Center"

Style="left: 0px; position: relative; top: 45px" Width="612px" AllowPaging="True">


<asp:BoundField DataField="Siglas" HeaderText="Siglas" ReadOnly="True" SortExpression="Siglas" />

<asp:BoundField DataField="Nombre_agencia" HeaderText="Agencia" SortExpression="Nombre_agencia" />

<asp:CommandField ShowDeleteButton="True" ShowEditButton="True" ShowInsertButton="True" />




<asp:SqlDataSource ID="SqlDataSourceAgenciaDetalles" runat="server" ConnectionString="<%$ ConnectionStrings:Registro_ExpedienteConnectionString %>"

DeleteCommand="DELETE FROM [tblAgencias] WHERE [Siglas] = @Siglas" InsertCommand="INSERT INTO [tblAgencias] ([Siglas], [Nombre_agencia]) VALUES (@Siglas, @Nombre_agencia)"

SelectCommand="SELECT [Siglas], [Nombre_agencia] FROM [tblAgencias] WHERE ([Siglas] = @Siglas)" UpdateCommand="UPDATE [tblAgencias] SET [Nombre_agencia] = @Nombre_agencia WHERE [Siglas] = @Siglas">


<asp:Parameter Name="Siglas" Type="String" />



<asp:Parameter Name="Nombre_agencia" Type="String" />

<asp:Parameter Name="Siglas" Type="String" />



<asp:ControlParameter ControlID="GridView1" Name="Siglas" PropertyName="SelectedValue"

Type="String" />



<asp:Parameter Name="Siglas" Type="String" />

<asp:Parameter Name="Nombre_agencia" Type="String" />







1/12/2006 5:30:58 PM

I would think you'd still need a subroutine to handle that, with the code:

Sub DVAfterDelete(sender As Object, e As DetailsViewDeleteEventArgs)
End Sub

Then, in the DetailsView:

Naturally, it would change to OnItemUpdated and DetailsViewUpdateEventArgs, when you are doing an Update/Edit

David Wier
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1/12/2006 6:05:44 PM

Thanks for your time,


I did just what you told me but it is asking for a parameter when calling the DVAfterDelete.


This is what i have:


Protected Sub DetailsView1_ItemDeleted(ByVal sender As Object, ByVal e As System.Web.UI.WebControls.DetailsViewDeletedEventArgs) Handles DetailsView1.ItemDeleted



End Sub


Public Sub DVAfterDelete(ByVal sender As Object, ByVal e As DetailsViewDeleteEventArgs)


End Sub

1/12/2006 6:17:17 PM

You just need one of the subs for what you were originally asking - -

Just add : Me.GridView1.DataBind() 

to the top sub - and delete the second other line, and the second sub

David Wier
MCP/ASPInsider - where to look first!
Please Vote for ASPNet101 - 'Best Community Resource'!
Control Grouper - easily control properties for multiple controls with one control!
Calendar Express - The Best HTML Calendar Generator on the web!
(Please 'Mark as Answer' when it applies)
1/12/2006 8:55:54 PM

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