DataSource Controls :: Querystring And Dropdowns With Autopostback?
Mar 5, 2011
I have a small problem with a querystring that populates 4 dropdowns.
On page A I have a hyperlink that adds 4 values to my url and on page B I have 4 dropdowns. I am able to click the link and the dropdowns are populated with the correct data! My problem is I do not know how to fire the postback event from DDL4 that shows my data!
[Code]....
My Sql statement:
[Code]....
As you can see from my code there are 2 control parameters. When DDLPrice is selected my page shows all the data. But when I use the querystring method it does not.
I load the querystring from my page load event
[Code]....
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The Html:
[Code]....
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[Code]....
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Apr 19, 2010
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Jun 29, 2010
this has to be a simple thing but I am missing it
here's what i have
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I have tried:
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[Code]....
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[Code]....
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Jan 7, 2011
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<asp:ImageButton ID="ImageButton11" Runat="server" CommandName="Page" CommandArgument="Next" skinid="next"/>.................
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Private Sub BindGrid()
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Using con As New SqlConnection(strConnString)
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[Code] ......
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My pages work with a SqlDataSource and an Access Database but returns an error when I'm using a SQL Server database.
ERROR [42S22] [Microsoft][ODBC SQL Server Driver][SQL Server]Invalid column name 'sid'
[Code]....
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Jan 9, 2010
I am trying to setup a page that access a members email address from a query string and then updates a table to set a field "opt_out" to true. I want to accomplish this on page load so when the user clicks a link I send them in their email to opt_out it will automatically do so. I have an sqldatasource set up as follows;
[Code]....
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I got a web app linked to a SQL Server 2005. The registration page for learners on this page require a lot of information and many of them are on dropdown controls linked each to their own table adapter. The table adapters are linked to tables within the Database. The dropdowns consist of info like designations, grades, categories, race, etc. The tables like designations changes from day to day as new types of designations are added and the other removed. What will the best way be to add data to the dropdowns? Another way I considered are to have one table and add a field like a type field that distinguish between the dropdown so that I only use one table adapter, or are there a better way. Some Code:
[Code]....
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Aug 31, 2010
I have following *.aspx page
<%@ Page Language="C#" AutoEventWireup="true" CodeFile="Test.aspx.cs" Inherits="Admin_Test" %>
<!DOCTYPE html PUBLIC "-//W3C//DTD XHTML 1.1//EN" "http://www.w3.org/TR/xhtml11/DTD/xhtml11.dtd">
<html xmlns="http://www.w3.org/1999/xhtml" >
<head id="Head1" runat="server">
[code]....
When I change the value in dropdownList (in browser), it does PostBack, but it selects the first item of list after PostBack - it doesn't save my value.
GetAllDepartments(isDeleted) is a stored procedure, it returns a List of objects with two properties - FieldKey and Name.
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Nov 22, 2010
I've been trying to figure out the issue and knowone seemd to know. I put a dropdown on my page and when I view it from my server, it works fine. When I tell it to go and get it's values from a DB I can no longer see it on the page when I view it from the server. Here's the code I have for it:
<td
class="style28">
<asp:DropDownList
ID="DropDownList2"
runat="server"
DataSourceID="AccessDataSource1"
DataTextField="Team"
DataValueField="ID">
</asp:DropDownList>
<asp:GridView
ID="GridView1"
runat="server"
AutoGenerateColumns="False"
DataKeyNames="ID"
DataSourceID="AccessDataSource1"
EmptyDataText="There are no data records to display."
Visible="False">
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<asp:BoundField
DataField="ID"
HeaderText="ID"
ReadOnly="True"
SortExpression="ID"
/>
<asp:BoundField
DataField="Team"
HeaderText="Team"
SortExpression="Team"
/>
</Columns>
</asp:GridView>
<asp:AccessDataSource
ID="AccessDataSource1"
runat="server"
DataFile="App_DataIRISBS.mdb"
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Nov 26, 2010
I have two dropdowns menu in detailsview (Both one table) . I want to change items in the second dropdown when the user selects an item in the first dropdown.
What I did as following but it does not work :
Add an empty SelectedIndexChanged event on the first dropdown and then, bind the second to the first under Selectedvalue. Also, sat AutoPostBack="True" on first dropdown.
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Feb 24, 2010
I have three parameters to search and the record is being populated on the gridview.
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Jan 5, 2010
So I am using a formview that gets in Update mode with a bunch of values from a sqldatasource --- but I want to fill a couple dropdowns with data from the database --- but I cannot figure out how to bind the data to the dropdown box FIRST and then select the value in that dropdown box... but I keep getting an error that the Selected value is not a part of the dropdown (I assume because the sqldatasource is trying to bind BEFORE I can get the dropdown box bound).
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