Using Textbox Value In GridView SelectCommand

Sep 6, 2007

I'm trying to create a simple search against a SQL Database.  I setup a TextBox and a GridView, I simply need the contents of the textbox to be used on databind() in my SQL select statement.  Seems like it should be a simple thing to do, any guidance is appreciated!  Here is my code:

<%@ Page Language="VB" MasterPageFile="~/MasterPage.master" Title="IP Tracker - Search" EnableSessionState="True" %>

<script runat=server>Protected Sub Button1_Click(ByVal sender As Object, ByVal e As System.EventArgs)

Search_GridView.DataBind()

End Sub

</script>

 

<asp:Content ID="Content1" ContentPlaceHolderID="MasterContent" Runat="Server">

<br />

<strong>Search for IP</strong><br />

<br />

<input id="SearchBox" type="text" /><br />

<asp:Button ID="Button1" runat="server" Text="Please Work..." onclick="Button1_Click"/><br />

<br />

&nbsp;<asp:GridView ID="Search_GridView" runat="server" DataSourceID="SqlDataSource1" EmptyDataText="No Records Match">

</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:IP_TrackerConnectionString %>"

SelectCommand="SELECT * FROM [AddressTable] WHERE ([IPAddress] LIKE '%' + SearchBox.text + '%')">

<SelectParameters>

<asp:FormParameter FormField="SearchBox" Name="IPAddress" Type="String" />

</SelectParameters></asp:SqlDataSource>

</asp:Content>

 

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Want Error Message To Appear When No Database Results Were Returned In GridView, Also Other GridView Issues.

Jun 12, 2008

Hi, I am seeking a hopefully easy solution to spit back an error message when a user receives no results from a SQL server db with no results. My code looks like this What is in bold is the relevant subroutine for this problem I'm having.   Partial Class collegedb_Default Inherits System.Web.UI.Page Protected Sub submit_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles submit.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] WHERE [name] like '%" & textbox1.Text & "%'" SqlDataSource1.DataBind() If (SqlDataSource1 = System.DBNull) Then no_match.Text = "Your search returned no results, try looking manually." End If End Sub Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End Sub Protected Sub reset_Click(ByVal sender As Object, ByVal e As System.EventArgs) Handles reset.Click SqlDataSource1.SelectCommand = "SELECT * FROM [college_db] ORDER BY [name]" SqlDataSource1.DataBind() End SubEnd Class  I'm probably doing this completely wrong, I'm a .net newb. Any help would be appreciated. Basically I have GridView spitting out info from a db upon Page Load, but i also have a search bar above that. The search function works, but when it returns nothing, I want an error message to be displayed. I have a label setup called "no_match" but I'm getting compiler errors. Also, next to the submit button, I also have another button (Protected sub reset) that I was hoping to be able to return all results back on the page, similar to if a user is just loading the page fresh. I'd think that my logic would be OK, by just repeating the source code from page_load, but that doens't work.The button just does nothing. One final question, unrelated. After I set this default.aspx page up, sorting by number on the bottom of gridview, ie. 1,2,3,4, etc, worked fine. But now that paging feature, as long with the sorting headers, don't work! I do notice on the status bar in the browser, that I receive an error that says, "error on page...and it referers to javascript:_doPostBack('GridView1, etc etc)...I have no clue why this happened. Any help would be appreciated, thanks! 

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May 24, 2007

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May 12, 2007

Hi all,
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Sep 12, 2007

Hi!
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Something like this:
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Dec 7, 2006

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{
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}
 
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Greetings all,
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I need some help please. Any advice would be greatly appreciated.
 
 

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Mar 12, 2008

Hi Everyone,
I set the session("MyTable") with the user's name as contents when the user logs in, then I copy a new table name with session("MyTable") , I set PK and this all works, but I can't seem to figure out how to use the session var as table name SQLDataSource Selectcommand? I try a bunch of different stuff, putting it into a key in the web.config. Seems like this should be a piece of cake.
Im getting ~ "Session variable is not a valid datasource item" etc. Below is one of the things I have tried.<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="<%$ ConnectionStrings:Connectio String %>" SelectCommand="Select * From [" + Session("MyTable") + "] Where ID = @ID">
 TIA
Cebo

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I would like to replace 'TestTable' with the name of a table that is extracted from a string array in the code-behind.
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Jan 31, 2008

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Feb 24, 2008

Hi all,
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Mar 25, 2008

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