How do I tell asp.net to display escape characters in a
In the select list, there are some '>' and '<'. I used < and > but the page shows < and > instead of '<' and '>'.
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It is a general ASP.NET questions. Many times some items in dropdownlist will become inactive (retired)or active again. It is easy to handle in the new records which use only currently active items. But how to handle the inactive items which need to be used to show history records. It bothered me a long time, not sure how to solve this problem efficiently.
I can't find solution for this problem for very long time:
I have a series of dropdownlists on webform in ASP 4.0. The first drop down is filled upon load, and then when a user selects a value from that list, it populates the second dropdown. To accomplish this, I have a SQLdatasource with a parametersource of the first drop-down list control. This works great, except when a user changes their selection from the first drop down. It performs the query, but then adds the list of items to the ones that were already there from the previous selection, instead of replacing it with the new data. Here is the code:
<asp:DropDownList ID="ddlMajor" runat="server" DataMember="DefaultView"
DataValueField="majorkey" AppendDataBoundItems="True" AutoPostBack="True">
<asp:ListItem Value="0">Select Major</asp:ListItem>
<asp:DropDownList ID="ddlReq" runat="server" DataMember="DefaultView"
DataSourceID="SqlDataSource2" DataTextField="req" DataValueField="admreqkey"
I have a DropDownList inside the EditTemplateItem (if the user clicks edit) in a GridView. The DropDownList receives all available rows from the database.
My problem is, if the user clicks Edit in the GridView to edit a row and opens the DropDownList Box the original item is not selected but the first one. That means the items are sorted.
Have someone an idea how I can solve this issue that the right item / the original is selected if I change to edit mode of the grid view?
The only idear that I have is to write some lines in the code behind for the updating event and selected the suitable index manually but I think there must be an easier way.
Ok probably you might have seem a dozens of post's titled "Invalid postback or callback argument" but this one is different.
Application that i am creating is simple content editor using the FCK editor.net Control (the content is HTML Encoded before saving t0 DB and then Decoded back again when displaying). just a simple drawing of of its ui is like this
DdlPages < listing the pages Whose regions/controls value can be edited> Databound
DdlRegions <listing the controls whose content can be edited> Databound on DdlPages selected index change
===========Retreived from DropDownlistRegions selected Index Change===========
txtName <a simple name for the region, user friedly identity >
==> FCK Editor <==
<Save Button> <Discard Button>
I am not such a good designer but hope you understand the UI layout.
This thing works flawless on IE 6,7,8
DropdownlistRegions holds the content to be displayed in the txtName and FckEditor. This is done by forming a custom concatenated column containing the txtName and Fckeditor(HTML content) separated by a ' ^ ' character. and then databound the column to the Dropdownlist value property.
So on selected index chang
I have a dropdown list that has a bind on it and I get this error. Why am I getting this error and what can I do to fix it. here is the code for the dropdown I currently have:
<asp:DropDownList ID="DDLPreferred" AppendDataBoundItems="true" SelectedValue='<%# Bind("PREFERRED_COMMUNICATION") %>' runat="server" TabIndex="15">
<asp:ListItem Text="none" Value=""></asp:ListItem>
Hi everyone, how are you doing!
I'm just started learning MVC 2. I went through the music store example (though I don't 100% get everything). Now I want to add some functions to the page to learn more. I added paging, and now I want to add search combo boxes (drop down lists). Basically, in the album list screen, I want to add 1 drop down list of genre. If user select 1 genre then click Search, the page should show all album of that genre only.
My problem is I don't know how to get the selected value of this drop down list. The approach I am using now is to get the selected value, then put it as parameter and redirect to Index (/StoreManager/Index?searchGerneId=x). I searched through many posts but couldn't find a solution that works for me. It is probably because I don't really get MVC yet and still try to do things the code-behind way. So please help me :) My code for Index in Controller is below
public ActionResult Index(int pageNumber = 1, int searchGenreId = -1)
var albums = from album in storeDB.Albums
join genre in storeDB.Genres on album.GenreId equals genre.GenreId
join artist in storeDB.Artists on album.ArtistId equals artist.ArtistId
The script I am using is
I have a webpage with two dropdownlists. I am not selecting anything from the dropdownlist and even if i debug code it does not show any error but still its generating the error.
"CAnnot have multiple items selected in Dropdownlist"
Here is my code.Please help me out this is very urgent!
Partial Class MarketingReports
Dim con As New SqlConnection
Dim sql As String
Dim cmd As New SqlCommand
Protected Sub Page_Load(ByVal sender As Object, ByVal e As System.EventArgs) Handles Me.Load
con.ConnectionString = "server=;database=;uid=;pwd="
Master.MyStyleSheet = "osx2.css"
Master.MyTabs.LoadTabItem("MarketingMain.aspx", "", "Marketing")
Master.MyTabs.LoadTabItem("MarketingAdmin.aspx", "", "Marketing Admin")
Master.MyTabs.LoadTabItem("MarketingReports.aspx", "", "Marketing Reports")
Master.MyTabs.LoadTabItem("EngineeringMain.aspx", "", "Engineering")
Master.MyTabs.LoadTabItem("EngineeringAdmin.aspx", "", "Engineering Admin")
I have a dropdownlist in a detailsview edit Item template. Also I have two tables - Employee and Main. In the Employee table I have column EmpId and AssignedTo. In the main table I have EmpId which is connected to the Employee table.
The detailsView has a label which shows the AssignedTo name for a particular record and it works fine. But if I click the edit button to shwo the dropdownlist in the editItemTemplate it is givig me the above error.
The code is:
<asp:DetailsView ID="dtvAssign" runat="server" AutoGenerateRows
Hello all. I see that dropdownlist has an "items" property to get the list of displayed items for a dropdown, but it doesn't seem to have an equivalent property for getting the "values" associated with the items. For example, I may have a dropdown that displays "High", "Medium" and "Low", but returns values of "H", "M", "L". How can I easily get that list of HML?
Thanks for any help!
I am placing a dropdown list in the footer of a DataGrid like this:
<asp:DataGrid id="MyGrid" runat="server">
<asp:DropDownList ID="myDDL" OnLoad="myDDL_OnLoad" runat="server" />
In my code behind file, in the myDDL_OnLoad event handler, I call to the database, populate a SqlDataReader, and set the DDL's datasource to that datareader. I define what data columns should be used for the DataValueField and DataTextField of the dropdownlist. Then I call the DropDownList's DataBind() method. Everything works without error. But, when the dropdownlist is displayed, it has blank lines in it.
By that, I mean if 8 records are loaded into the dropdownlist, it will expand to a size appropriate for 8 rows but, it will be empty. there is no text in it.
Has anyone seen this type of behavior before? This dropdownlist is in the footer of a dynamically loaded ajax update panel so, it is difficult to see the source code to see what values are in the html element rendered to represent the dropdown.
Thanks in advance for any advice you can give.