Forms Data Controls :: How To Fill Databound Dropdowns Before Select The Updated Value
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).
IE -- when I load my values, lets say a 'Crop' comes back as 'Corn' ... I want to download the available crops from the database (ie. corn, beans, wheat, okra, etc.) and then set the selected value as CORN.... SO HOW do I get the dropdown filled BEFORE I try and bind the selected value?
View 3 Replies
Similar Messages:
Sep 11, 2010
I have a database where a user inputs data to multiple databound drop down listboxes. That's saved to my aspnet database. Then when the page loads again, I want to select the ddls items that the user selected as stored in the database to these databound ddls. But it doesn't work, because on pageload, they haven't been databound yet.
What's the best way to do this? Do I need to run a SELECT statement for each and every ddl on it's databound event?
View 8 Replies
Sep 13, 2010
On one (aspx) page I have a GridView (GridView has multiple pages). After a user selects a row/record and clicks "edit" he's redirected to another (.aspx) page where he edits the selected record via DetailsView. fter clicking update on DetailsView he's redirected back to the page containing the GridView.What is the simplest/shortest way that the updated record is automatically selected on the Gridview (e.g. at Page_Load event)?
View 7 Replies
Jan 20, 2010
Below is my HTML:
[Code]....
I get a message saying 'Error Creating Control -SqlDataSource3'. . . .does not match anyroperties within a 'System.web.UI.WebControls.SqlDataSource'. This was working just fine until a couple daysago and I don't know what changed to cause this to no work any longer. Can anyone tell me what is causing thiserror?
SelectCommand="SELECT ID, Pub,
Street, Neighborhood, City, State, RelativeAddress, Crawl FROM ListofPubs WHERE
(Neighborhood = @Neighborhood1) OR (Neighborhood = @Neighborhood2) OR
(Neighborhood = @Neighborhood3) _
[code]...
View 1 Replies
Feb 15, 2011
I have a data gridview with two columns (Databound- HTML tags), very similar to the one of twitter,the second column populated as follows:
USERNAME: COMMENTDate
i need to add "Report this Comment" button next to the date, once clicked the user will be forward it to another form holding all of the above information related to this special row.
View 6 Replies
Nov 12, 2010
I have a dropdown list which is bound to a gridview. I would like to add a dropdownlist item which, when selected, will default to displaying ALL gridview rows. So I would like as the first dropdown list item "All Items" and have this as the default.
View 2 Replies
Dec 6, 2010
I am using panel to hide and display certain controls on a page, On one of my panel i have three drop down, all i want is to make sure that user has selected something from the dropdowns otherwise they cant proceed, i am using the requiredfield validator but its just not working
[Code]....
View 9 Replies
Jun 7, 2010
I have a ASP.NET 1.1 web application page which is built with .net framework 1.1 and in GridView the data is displayed.I want when they select multiple items then data is updated but without the complete postback of the page.
View 1 Replies
May 3, 2010
i have a RadioButtonList and the list is bounded by a datasource.
By default, its default selected item is empty, i would like to know how i could make the first thing it databounds into, should be the selected item.
View 4 Replies
Jun 8, 2010
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]....
View 4 Replies
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">
<Columns>
<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"
SelectCommand="SELECT [ID], [Team] FROM [tblTeam]"></asp:AccessDataSource>
</td>
View 21 Replies
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.
View 12 Replies
Feb 24, 2010
I have three parameters to search and the record is being populated on the gridview.
Paremeters are dropdown lists:
lstDepartment, lstSection, lstLocation
I used AutoPostBack to true for above dropdowns but the problem I am facing is when I select value in lstDepartment to show values in lstSection then gridview data refreshes and after that when I select lstSection to show values in lstLocation then again gridview refreshes.
What I want to do is to when I'll select dropdown one by one then gridivew display data when a Search button pressed.
I don't want to refresh gridview everytime on the basis of dropdown selection.
View 14 Replies
Aug 5, 2010
Using ASP.NET 2.0
I have a gridview populated by a SQLDataSource that is fairly complicated on a dataset changing constantly. It takes a second or so to fetch the data.
I want to have external dropdownlists for filtering the data that appears in the gridview, either with a FilterExpression or with parameters.
The problem is that querying the database to populate the dropdownlists takes a long time, because of the complexity of the query. The values in the dropdowns can vary based on other filters.
Is there some simple way of querying the database only once, for the main gridview, and then somehow querying the local (to ASP.NET) copy of the data to extract distinct values for populating the filtering dropdowns? I am thinking this might speed things up a bit.
View 4 Replies
Mar 11, 2011
I have 45 dropdown lists in my asp page. There are some methods that I can apply to all of these dropdowns. Is it possible to convert them into an array of dropdowns for ease of use?
View 2 Replies
Nov 11, 2010
i've 4 similar dropdowns in my form in four different categories, is there any way to bind one of them so that the remaining dropdowns can be automatically filled or binded with the same content as first dropdown
View 4 Replies
Aug 26, 2010
I am working with a formview edititemtemplate. Currently in my page load, i have some stuff that would show or hide certain panels based on dropdownlist values. These dropdown values get binded during page load. I need to be able to change the values/dropdowns, without rebinding the old data, and updating the visibility of the panels based on predefined rules.
I have experimented with putting my formview.databind() in page load if isnotpostback, in prerender, in prerender if isnotpostback. I have tried my rules (ex if ddlState.selectedvalue = "DE" then pnlDelaware.visible = "true") in the page load, and the page render. I'm just not sure how to get the stars aligned here. The closest i have come is having the databind in the pageload if notispostback, and the rules in the prerender. However I get an error "dropdownlist has a SelectedValue which is invalid because it does not exist in the list of items.
View 4 Replies
Mar 8, 2011
I have a page with a data repeater. Each row has a dropdownlist for the user to select a value and the values in every dropdown are the same. I also have an SqlDataSource which each dropdownlist gets its values from as its created. Everything is working as it should but for each dropdown that is rendered a seperate call is made to the database.
suggest a better way for me to do this that means only one call to the database for all dropdowns rendered?
View 3 Replies
Jul 28, 2010
I'm a complete novice in .NET. I am trying to implement a multi textbox / dropdowns / checkboxes search for a website using vb.net. How do I pass the values of my form fields to my griedview and display the search result on the same page?
I've written a stored procedure and specified it as data source for my gridview and defined parameter source as my CONTROLS (textboxes, checkboxes n dropdowns) on the form. What I want is when a user fills out one or multiple fields on the form, how do I display data in the gridview on the click of SEARCH button? Also is it necessary to write a codebehind for my search button or we can achieve the desired result in some other way?
View 5 Replies
Nov 22, 2010
I have a databound dropdown list (ASP.net). I want the page to load with a certain item as the selected item.
I am not adding a blank first row (thats not what i need)I find that I can get this to work with "AppendDataBoundItems" to true, but the side-effect is that I have all the items listed twice.
View 1 Replies
Dec 7, 2010
I want to render something like this (with ASP.Net Controls in the codebehind):
<ul>
<li class="first"><h1>This is a caption</h1></li>
<li><a href="#" title="" target="_self">Foo</a></li>
<li><a href="#" title="" target="_self">Foo1</a></li>
<li><a href="#" title="" target="_self">Foo2</a></li>
<li><a href="#" title="" target="_self">Foo3</a></li>
<li><a href="#" title="" target="_self">Foo4</a></li>
</ul>
<ul>
<li class="first"><h1>This is a another caption</h1></li>
<li><a href="#" title="" target="_self">Foo5</a></li>
<li><a href="#" title="" target="_self">Foo6</a></li>
<li><a href="#" title="" target="_self">Foo7</a></li>
<li><a href="#" title="" target="_self">Foo8</a></li>
<li><a href="#" title="" target="_self">Foo9</a></li>
<li><a href="#" title="" target="_self">Foo10</a></li>
<li><a href="#" title="" target="_self">Foo11</a></li>
</ul>
The amount of li elements that will be rendered into each ul is determined at runtime. Each link in a li belongs to into a specific ul (the one containing a specific caption. Imagine this as a kind of a treeview with nodes and subnodes) During the bind Event I need access to an ASP:HyperLink that will be rendered into the a-element. Which databound ASP.Net control should I pick for this? Looks like a repeater in a repeater, which should make the databinding process ugly. I'm thinking about creating this HTML-Output with StringWriters myself.
View 1 Replies
Apr 7, 2010
I have a GridView, and its GridView_RowUpdating() method is called, and NewValues are set correctly... but at the end the database is not updated.
[Code]....
[Code]....
View 3 Replies
Jul 19, 2010
i have a method to check if a row contains a certain time. the row is databound to the grid. how do i refrence this row?
row in asp.net
<asp:BoundField DataField="Time" HeaderText="Time"
SortExpression="Time" Visible="False" />
i thought findControl would work but i didnt get much luck, something like string previous = ((TextBox)r.FindControl("Time")).Text;
View 11 Replies
Jan 25, 2011
I have gridview. some columns are data, and some are link buttons. now, I need move these link buttons to a hovermenu. this is done. but I got a javascript exception, and it is because if there is no row was selected in gridview, it will pop this.
so, the question is: how can I select a row in gridview without select command? simply by code?
View 3 Replies
Feb 15, 2011
i want to compare my database value with my new updated value. what should i do ? e.g : on page load i am excuting one procedure which bring 10 columns and fill it against the 10 fields using for loop on the page. then i am changing value of two columns. ok. when i press update button then there is one more procedure which updates all the new and old columns into database. Its working fine. just i want to know that, should i update only two columns(which are modified) insted of updating all 10 columns ? Is there any csharp code that brings my page load columns into array and then compare it with new ones and updates only those columns which are mismatch with array. i am not sure but there is some way to do this.
View 4 Replies