I have a little problem with my selectedIndexChanged method of my checkBoxList. For example1. When no items are selected and I check the 3th item, The list returns de 3th item. --> OK2. When the 1st item is checked and I check the 2nd item, the list returns the 1st item, probably because it's checked. --> Not ok, because it must return the 2nd item.
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I am currently experimenting with dynamically populating a CheckBoxList. When a selection is made, a notification is given via the code behind. Below is the code I have been toying with, attempting to work from a simple base.
So far, the list seems to generate just fine, but anytime I check one of the boxes...I am taken back to the same page, with no boxes checked, and without the code behind having executed. If I manually add the asp:listitems to the checkbox, everything seems to work fine.
[b]Default.aspx[/b]
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[b]Default.aspx.vb[/b]
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I've pulled off this same procedure with DropDownLists.
I would like to fire off the server side selectedindexchanged method of a radgrid on doubleclick and not on click. Is it possible to do this???
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Is it possible to do this? To postback on doubleclick or is there an alternative?
I need to charge my checkboxlist1 from database, eg load fruits and vegetables. When selecting fruits, new filter based on the previous selection in my checkboxlist2. for specific search.
View 1 RepliesI have a problem with dropdown list. I have two dropdown lists on my web page. On page load event i have populated my first dropdown list which is working fine. I want to populate my second dropdownlist based on the selected value of first one , But theSelectedIndexChanged of my first event is not firing even i have set AutoPostBack property to true.
View 9 RepliesMy requirement is, if i click on Manage button of gridview then it should show all the data in the textbox from database.I have problem, It is working fine If contactusID visible="true" and when it is false then if i select row on gridview first time,its fine and if i select any row second time, i am getting error. There is no row at position 4 and my counter starts with 0, and i have 4 rows in my grid.Code:-
protected void gvAppContactUs_SelectedIndexChanged(object sender, EventArgs e)
{
mvDefault.SetActiveView(vModifyApp);
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I have a dropdown list sitting on a user control and I need to evoke the SelectedIndexChanged from the dropdownlist. How do I make this SelectedIndexChanged event available on my UC?
View 2 RepliesI have one dropdownlist control which populates values to other controls. Means upon selecting item in dropdownlist, related data is populated in other controls. I have also assigned dropdownlist's autopostback to TRUE. Everything is working good as far as dropdown has more than one item.
Whenever there is only one item, selectedindexchanged event is not fired (obviously.....) and eventually the data is not populated to other controls.
How could I get rid of this scenario? I mean which event should I use to avoid this?
At this time, I have just added the first item as something like "---Select Item---" , so when end-user has to select different item and thus the selecteditemindexchanged is fired. no biggie... but just wondering if proper solution is available....
I am developing a C# / SQL website application in VS 2008 and using SQL Server 2008. I am a newbie. Right now though I can not get the drop-down box to display the SQL table columns. This application should return all of the rows from the selected table. And then I append one row = IGNORE to the end of the list. But when I run this app the first time, it correctly displays the list of available values from the table and appends IGNORE on the end. However, after postback it only displays IGNORE value for me to select. I thought this might be a Viewstate or Autopostback problem, but I tried changing these values and it did not fix it. Here are excerpts from my code.
The problem is that the "targettable" variable is null after postback. But I don't see what is causing this.
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I have a GridView with a TemplateField where I'm hosting a button. The button has an event hanlder OnClick, so when it is clicked it will execute some code.The problem I'm having is that when I click the button in a row, the Button event handler is not excecuted right away. Instead, the GridView selectedIndexChanged is fired and then I need to click my button again to fire the button's event handler.So, is there a way I could know if the button or the row was clicked in the GridView SelectedIdexChanged event? And why the Button's event handler is not firering right away?
View 1 RepliesI have a gridview that whenever i select the particular row, the gridview SelectedIndex command will set the particular row's value to a label. But the problem now i am facing is.. it does not set the value to a label.
Protected Sub AdminGridView_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs) Handles AdminGridView.SelectedIndexChanged
Dim row As GridViewRow = AdminGridView.SelectedRow
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I don't know what I'm making wrong.I have a submit button, and on click it should execute the funktion in the code behind, but I get the error that the funktion is undefined.this is my code in the .aspx webform:
<%@ Page Language="C#" AutoEventWireup="True" MasterPageFile="~/DashMaster.master" CodeBehind="BI_MDR.aspx.cs" Inherits ="BI_MDR.StoredProc"%> [code].......
I am creating an Asp.net web site which will support dynamic data. When I am creating a dynamic web site from Scratch (from template in VS) all is working fine. But when I am trying to add dynamic entity (.edmx) file and running the application I am getting following error
"The method 'Skip' is only supported for sorted input in LINQ to Entities. The method 'OrderBy' must be called before the method 'Skip'. "
Getting an unexpected event firing dropdownlist's selectedIndex event. When I try to redirect from another page by a linkButton. I just changing dropdownlist selectedIndex.Its okay.But after that When I attempt to redirect to another page,DropDownList's selectedIndex event firing (before linkButton Onclick event).But I am not changing any thing in dropdownlist.Somehow its event firing.
also any page viewstates is default (not off).But loading webcontrols into masterpage Page_Load like this :
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if this dropdownlist selectedIndexchanged event firing. Because of I am loading webcontrols each masterpage's PageLoadEvent.
What do you prefer this may the reason of this unexpected event firing ? if so. Do you have a better technic to load controls Just for one time and not each pageLoad.maaybe a caching technic I am missing or shoult I use substution.
I couldnt find the main reason why a dropdownlist selectedIndexchanged event firing without I changed anything on that dropdownlist.
what reasons may cause this problem ? if you say viewstate its turned on defaultly. any other reason you know why ?
I have several DropDownLists which get data from database, that is,
first DropDownList has static data, second DropDownList gets data according to selectedItem of first DropDownList, and so on..
There cases when second DropDownList has only one item, in that case I cant call SelectedIndexChanged.
How to manage it ?
Basically I have a dropdownlist (ddlSystem) and an AJAX update panel. Inside the update panel I have an asp:GridView (gvSystemSpecs) and an asp:Image (imgLoad).
For triggers on the update panel I have:
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When the user changes ddlSystem it makes a service call to pull back a bunch of data and populate the gridview.
I want to be able to show a loading image (imgLoad) when ddlSystem is changed. Once the function to pull data and populate the gridview is complete I need to hide the loading image.
I think I'll need to use some JavaScript, but what ever I try doesn't work and I don't know if the update panel has anything to do with it...
I want to get dates from Database to a calendar > on a dropdownlist Selection.. This is what i was doing on page load
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I tried using it in dropdownlist SelectedIndexChanged but something is not right! here is the rest of the code for dayrendar event and
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What should i do ?
i am using dropdownlist selectedindexchanged event , it is working with good speed in ie 6 or ie 7. But working slow in ie8.
View 2 RepliesI have a datagrid view on a web page that I'd like to be able to have a user "select" an item and then open another page. I've tried looking through some online documentation, but I haven't found a really efficient way to do what I want yet.
Here is my code so far:
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I have a datagrid view on a page that I'm making and I want to be able to open another form when a user "selects" an entry. I've tried looking through the documentation on how to do that but can't seem to find any.
View 13 RepliesI've got a form with 3 drop down lists. If I choose a report on the Actions DDL, which displays a sql report as a pdf, then select an item in one of the other DDL's, the SelectedIndexChanged event for the Actions DDL is fired again. I can't get the other DDL's SelectedIndexChanged event to fire.
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i n using java script function to showalert msg .function is as follows
function ShowAlertForScaleResolution()
{
var ddlScale= document.getElementById('<#=ddlScale.ClientId #>');
var ddlResolution= document.getElementById('<#=ddlResolution.ClientId #>');
if(ddlScale.value=="0" || ddlResolution.value=="0")
{
alert("Please select valid Scale and Resolution");
}
return false;
}
my dropdown source code is--
<asp:DropDownList ID="ddlBlockName" onchange="return ShowAlertForScaleResolution();"
runat="server" Width="150px" AutoPostBack="True" OnSelectedIndexChanged="ddlBlockName_SelectedIndexChanged">
</asp:DropDownList>
when i m selecting the BlockName withought selecting any item from ddlScale and ddlresolution then i m showing alert msg.
My Problem is that when i m selecting the details of scale and resolution dropdown then its not showing any errormsg. But its not firing the selected index chaged event of Drop down .
I want to be able to show dates on calendar on SelectedIndex event of dropdown list.. i.e. once a user picks a value from dropdown list according to that dates (from DB) will be selected on calendar..
This is the code i am using, but i am using it in a DayRendar event. (How can i link them) how can i make it work??
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i have two dropdownlist in my webform both are filled dynamically in the page_load event
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I have the following in a web user control:
asp:DropDownList
ID="ddlPrescriptionCodeGroup"
runat="server"
AppendDataBoundItems="True"
AutoPostBack="True"
DataSourceID="PrescriptionCodeGroupDataSource"
DataTextField="CodeGroupDescription"
DataValueField="PrescriptionCodeGroupID"
onselectedindexchanged="ddlPrescriptionCodeGroup_SelectedIndexChanged">
<asp:ListItem
Text="--Please Select--"
Value="-1"></asp:ListItem>
<
</asp:DropDownList>
<asp:SqlDataSource
ID="PrescriptionCodeGroupDataSource"
runat="server"
ConnectionString="<%$ ConnectionStrings:RadiotherapyConnectionString %>"
SelectCommand="SELECT [PrescriptionCodeGroupID], [CodeGroupDescription] FROM [PrescriptionCodeGroup] WHERE (([Archived]
= @Archived) AND ([OrganisationID] = @OrganisationID))">
<SelectParameters>
<asp:Parameter
DefaultValue="False"
Name="Archived"
Type="Boolean"
/>
<asp:SessionParameter
Name="OrganisationID"
SessionField="OrganisationID"
Type="Int32"
/>
</SelectParameters>
</asp:SqlDataSource>
<asp:DropDownList
ID="ddlPrescriptionCode"
AutoPostBack="True"
runat="server"
AppendDataBoundItems="True"
onselectedindexchanged="ddlPrescriptionCode_SelectedIndexChanged"
DataSourceID="PrescriptionCodeDataSource"
DataTextField="CodeDescription"
DataValueField="PrescriptionCodeID"
>
<asp:ListItem
Text="--Please Select--"
Value="-1"></asp:ListItem>
</asp:DropDownList>
<asp:SqlDataSource
ID="PrescriptionCodeDataSource"
runat="server"
ConnectionString="<%$ ConnectionStrings:SystemConnectionString %>"
SelectCommand="SELECT [PrescriptionCodeID], [CodeDescription] FROM [PrescriptionCode] WHERE (([Archived] = @Archived)
AND ([PrescriptionCodeGroupID] = @PrescriptionCodeGroupID))">
<SelectParameters>
<asp:Parameter
DefaultValue="False"
Name="Archived"
Type="Boolean"
/>
<asp:ControlParameter
ControlID="ddlPrescriptionCodeGroup"
Name="PrescriptionCodeGroupID"
PropertyName="SelectedValue"
Type="Int32"
/>
</SelectParameters>
</asp:SqlDataSource>
When I select from the first dropdown I want to populate the second. However, this is not happening. The postback is happening, but the SelectedIndexChanged handler isn't being called (I have a breakpoint which isn't being hit). The user controls are created dynamically and put into a PlaceHolder which itself is within an AJAX Updatepanel, with ChildrenAsTriggers set to true.
