Solved

ASP.NET Select Command -  Call Function

Posted on 2006-11-07
6
1,267 Views
Last Modified: 2007-12-19
I have 3 files (Test1.aspx, Test1.aspx.vb, TestResults.aspx).  I'm using a function to create my SelectCommand sql string.  On my TestResults.aspx page, I want to call the function but I'm getting a "Declaration Expected" error message for 'GridView1'.  If i try to declare GridView1, it says it's already declared.  Any suggestions?  Here is what my files look like:
*****************************************
Test1.aspx (this page actually contains several drop down lists and text boxes - I shortened here for simplicity)

    <form id="form1" runat="server">
    <div>
        <asp:TextBox ID="Input Value1" runat="server" Wrap="False"></asp:TextBox>
        <br />
        <asp:TextBox ID="Input Value2" runat="server"></asp:TextBox><br />
        <br />
        &nbsp;<asp:Button ID="Button1" runat="server" Text="Button" /></div>
    </form>

**************************************
Test1.aspx.vb (SQLString function is actually a long if/then statement that uses the values from the form fields on Test1.aspx.).

Public Class Test1
    Inherits System.Web.UI.Page

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles Button1.Click
        Server.Transfer("TestResults.aspx")
    End Sub

    Public Shared Function SQLString() As String

        SQLString = "SELECT * FROM Table1"

    End Function

End Class
***************************************
TestResults.aspx looks like this:

<%@ Page Language="VB" AutoEventWireup="false"%>

<script runat=server>
        GridView1.SelectCommand = Test1.SQLString()
</script>

<head runat="server">
    <title>Untitled Page</title>
</head>

<body>
    <form id="form1" runat="server">
    <div>
        <asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource1">
            <Columns>
                <asp:BoundField DataField="Field1" HeaderText="Field1" SortExpression="Field1" />
                <asp:BoundField DataField="Field2" HeaderText="Field2" SortExpression="Field2" />
                <asp:BoundField DataField="Field3" HeaderText="Field3" SortExpression="Field3" />
            </Columns>
        </asp:GridView>
        <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="mydb.mdb"></asp:AccessDataSource>

0
Comment
Question by:drees727
  • 2
6 Comments
 
LVL 9

Expert Comment

by:kraffay
ID: 17891918
I think you need to set the Select property of the AccessDataSource1 datasource control, not the grid.
0
 

Author Comment

by:drees727
ID: 17893162
I modifed it the following but am getting 'Declaration Expected' for AccessDataSource1.

<script runat=server>
        AccessDataSource1.SelectCommand = Test1.SQLString()
</script>
0
 
LVL 9

Accepted Solution

by:
kraffay earned 125 total points
ID: 17893446
I got these two pages to work against the Northwind.mdb with your technique:

Page 1:

---------------------------------------------------------------------------------------------------------

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)

        Session("InputValue1") = Me.InputValue1.Text
        Session("InputValue2") = Me.InputValue2.Text
        Response.Redirect("Step2.aspx")
       
    End Sub
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page 1</title>
</head>
<body>
    <form id="form1" runat="server">
   <div>
        <asp:TextBox ID="InputValue1" runat="server" Text="Alfreds Futterkiste" Wrap="False"></asp:TextBox>
        <br />
        <asp:TextBox ID="InputValue2" runat="server" Text="Maria Anders"></asp:TextBox><br />
        <br />
        &nbsp;<asp:Button ID="Button1" runat="server" Text="Button" OnClick="Button1_Click" /></div>
    </form>
</body>
</html>


---------------------------------------------------------------------------------------------------------

Page 2:

<%@ Page Language="VB" %>

<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.0 Transitional//EN" "http://www.w3.org/TR/xhtml1/DTD/xhtml1-transitional.dtd">

<script runat="server">

    Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs)

        Dim CompanyName As String = Session("InputValue1")
        Dim ContactName As String = Session("InputValue2")
       
        Me.AccessDataSource1.SelectCommand = "Select * FROM Customers WHERE CompanyName ='" & CompanyName & "' AND ContactName = '" & ContactName & "'"
        Me.GridView1.DataBind()
       
    End Sub
   
   
</script>

<html xmlns="http://www.w3.org/1999/xhtml" >
<head runat="server">
    <title>Page 2</title>
</head>
<body>
    <form id="form1" runat="server">
    <div>
        <asp:AccessDataSource ID="AccessDataSource1" runat="server" DataFile="~/App_Data/Northwind.mdb" ></asp:AccessDataSource>
        <br />
        &nbsp;<asp:GridView ID="GridView1" runat="server" AutoGenerateColumns="False" DataSourceID="AccessDataSource1">
            <Columns>
                <asp:BoundField DataField="CompanyName" HeaderText="CompanyName" SortExpression="CompanyName" />
                <asp:BoundField DataField="ContactName" HeaderText="ContactName" SortExpression="ContactName" />
                <asp:BoundField DataField="ContactTitle" HeaderText="ContactTitle" SortExpression="ContactTitle" />
            </Columns>
        </asp:GridView>
    </div>
    </form>
</body>
</html>

0

Featured Post

Is Your Active Directory as Secure as You Think?

More than 75% of all records are compromised because of the loss or theft of a privileged credential. Experts have been exploring Active Directory infrastructure to identify key threats and establish best practices for keeping data safe. Attend this month’s webinar to learn more.

Question has a verified solution.

If you are experiencing a similar issue, please ask a related question

This article discusses the ASP.NET AJAX ModalPopupExtender control. In this article we will show how to use the ModalPopupExtender control, how to display/show/call the ASP.NET AJAX ModalPopupExtender control from javascript, how to show/display/cal…
Today is the age of broadband.  More and more people are going this route determined to experience the web and it’s multitude of services as quickly and painlessly as possible. Coupled with the move to broadband, people are experiencing the web via …
This Micro Tutorial will give you a basic overview how to record your screen with Microsoft Expression Encoder. This program is still free and open for the public to download. This will be demonstrated using Microsoft Expression Encoder 4.
Many functions in Excel can make decisions. The most simple of these is the IF function: it returns a value depending on whether a condition you describe is true or false. Once you get the hang of using the IF function, you will find it easier to us…

911 members asked questions and received personalized solutions in the past 7 days.

Join the community of 500,000 technology professionals and ask your questions.

Join & Ask a Question

Need Help in Real-Time?

Connect with top rated Experts

24 Experts available now in Live!

Get 1:1 Help Now