Why Does Dropdownlist Selected Option Does Not Cause Postback Second Time
Jan 27, 2010
I have two dropdownlists ,selecting the first dropdown causes postback and second dropdown gets binded...Why does the selected value of the first dropdown,once again selected does not cause postback?
<asp:DropDownList ID="DLMatName" runat="server" OnSelectedIndexChanged="DlMeasurement_SelectedIndexChanged" AutoPostBack="true">
</asp:DropDownList>
protected void DlMeasurement_SelectedIndexChanged(object sender, EventArgs e)
{
[code]...
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Sep 30, 2010
I thought this would be pretty simple, and in fact it's working on another dropdownlist on the same View, so I'm hoping I missed something very small that is easy to fix. Here's my code:
[Code]....
When I step through the code, the 'Active' option's 'Selected' property is being set to true. That's expected. But when the View renders, it's not selected and a look at the page source shows that the selected property isn't set. What is the problem here, and what's the solution?
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Nov 15, 2010
I have a ASP DropDownList that gets populated on the Page_Load event, after i select an item and hit a button the selected item gets cleared and the first item in the DropDownList gets selected. (The DropDownList is only populated when the page is not postback)
if (!IsPostBack)
{
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[code]...
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Feb 23, 2010
I am building a composite server control that currently only has a TextBox and a DropDownList. Here is the code in all its foetal glory:
[Code]....
The control appears to work correctly across postbacks, that is until declarative values are set, e.g.:
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Feb 25, 2016
I have the problem with dropdownlist value inside gridview.my problem is i have textbox,button with two dropdownlists, dropdownlists are inside gridview.Two dropdownlists are one is ddlcountry and another one is ddlstates. if i select country from ddlcountry , country related states comes in ddlstates. after entering first record value in textbox then button click textbox value is shown in gridview with two dropdown lists dropdown list, after selecting one dropdownlist country and states, i enter second record value and button click then only country selected value visible ddlstates selectedvalue not visible in first record in gridview...
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Mar 18, 2010
I have an ASP.NET page using the AJAX library. There is a dropdownlist inside an UpdatePanel, which on index changing is supposed to update a different UpdatePanel to modify a grid control.But after the page first comes up, and you adjust the ddl, the entire page postbacks, followed by a (correct) partial postback. After this one time, every other usage of the ddl performs correctly, trigger partial postbacks.
Both the panel and the ddl are being added from code. The UP is Conditional updates and ChildrenAsTriggers = true. The dropdownlist is AutoPostBack true and has an event set up on SelectedIndexChanged.So what is going on? I've tried adjusting every setting I can think of and still the page completely refreshes once, then works fine after that.
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Feb 25, 2010
I need to create a user control which will be loaded according to the selected value of a dropdownlist. The Dropdownlist is not the part of Control. I want to pass the value of selected value of dropdonwlist to my user control and the user control will load according to the Value. For not postback it work fine. But when the page is postback, that is when i select a item form dorpdownlist, the user control is not loaded.
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Apr 13, 2010
I have a DataGrid that has a dropdown list in an ItemTemplate. Basically, users select a value from the dropdown for each row of the datagrid. When the page is posted back, the selected index of the dropdown list is always reset to 0, and the items are re-bound.
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Mar 14, 2014
I can not get the Selected Item value in in GridView Dropdowntemplate Feild
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string ItemSkuCode = ddlIMEntity.SelectedItem.Text + "-" + txtIMItem.Text + " -";
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[CODE]..
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Sep 22, 2010
Values in multiselect dropdown not getting selected when Select All option is selected for a SSRS dropdown. There are multiple dropdowns on the page. We have one dropdown whose output is being used to populate the second dropdown using a stored procedure. When we check the Select All checkbox on the dropdown then ideally upon page refresh all the values should get selected in the dropdown, but in this case the page refreshes back to the blank dropdown, forcing the user to select the values again. The next dropdown too does not get populated. This makes it impossible to run the report for all the cases by using Select All. We ran the report on differnet database environments. My current location is Mumbai,India, the report worked fine when we ran it on a Bangalore,india database. This issue occurs when we try running it on a Chicago database server. I am using SSRS 2005, SQL2005.
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Mar 25, 2010
i have a gridview which consists of databounds and dropdownlist control. When I press the Add Grid Row Button, it will insert a row. Now my question is, if the user selected an item in dropdownList in the firstrow and the user click the AddGridRowBtn Again which will generate the 2nd row, how would i maintain the selectedItem in the dropdownlist after postback?
Source For Gridview:
[Code]....
Add Row Code
[Code]....
[Code]....
And For Grid Row Created Event
[Code]....
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Feb 11, 2011
I have a country dropdown and a city dropdown.I am filling the country dropdown at the time of page load and showing the city dropdown blank. On the "onChange()" event of the country drop down I am filling the city dropdown according to the country id.
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Feb 3, 2010
i use a dropdownlist in a page, with its items taken from a mysql database
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Apr 14, 2010
I have a list of options (IEnumerable< SelectListItem >) in my model that I want to use in multiple dropdowns in my view. But each of these dropdowns could have a different selected option.
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At this point, the only way I can see is to generate the html myself and loop through the list of options like so:
[code]....
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Nov 16, 2010
To demonstrate that I could even use a Class attribute on an option elem I tried adding class attributes to options of a select elem in a static page and that works fine. I noticed that not many online resouces documented this so I figured I would explicitly set the record.
here is the jquery code attempting to add a class to the selected option
[Code]....
New information, I found the reason nothing occured was a simple mistake in the value being passed in for compLev. However, now it runs through the code for the correct case and does nothing to the color of the item.
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May 20, 2010
I have the following code:
[Code]....
However, the wrong option is selected, and when I view page source, it renders like this:
[Code]....
Why is this occurring?
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Feb 15, 2011
How do you use JQuery to make an option in a <select> object selected? Here is my <select> :
[Code]....
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Sep 24, 2010
I have an asp.net control textbox, clicking on which a jquery timepicker appears and user can select any time.But I want to validate the selected time so that it is one hour greater than the current time in the client side. I mean when textbox value will be changed it should be validated.
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Apr 15, 2010
I have a fuctioning webform where users can sign-up for a monthly reoccurring meeting. However I want to change the payment amount based on the date the individual signs up.
For instance the meeting is the 2nd wednesday of the month, if user signs up 7 days or greater they pay $10. If they sign up less than 7 days till the meeting they by $20 dollars. If user signs up 2 days before meeting they receive a message informing them registration is closed.
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Jan 6, 2010
have a dropdownlist (ddl2) which is dependent on the selected value of another dropdownlist (ddl1).I have set the appendatabounditems to "true" for ddl2 and have added a "Please Select" and a "Select All" options. The Options show in the list when the page first loads. When ddl1 is selected the page refreshes and ddl2 is populated, however the "Please Select" and "Select All" options have disappeared.
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Sep 20, 2010
[Code]....
To get value, i used: $("#mySelect").val() (=1)
BUT... How can I get level value? (=2)
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Jan 26, 2011
Im doing a project which requires me to store the survey results to database.
For the options, I am using the radio button list.
However, I have problems storing the selected option back to database.
Is there any solution to it? Im using visual studio C#! :)
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Apr 15, 2010
I am having a problem with disabling DropDownList based on the chice of 1st DropDownList, there is no post back occuring, and it is a template based web app here is the current code:
<script type="text/javascript">
$(function() { var dropDownList1 = $('#<%= ddlUserType.ClientID %>');
var dropDownList2 = $('#<%= ddlMember.ClientID %>'); dropDownList1.change(function(e) {
if ( jQuery("#ddlUserType").val() != "ETOC") dropDownList2.removeAttr('disabled'); e.preventDefault();
else
dropDownList2.removeAttr('enabled'); e.preventDefault(); }
} );
</script>
what is happening now is page is blank and if I remove the above code everything shows, where I am going wrong. here is the plain and final javascript code which worked:
<script language="javascript">
function CheckDropDownState(lstbox)
{
if (lstbox.selectedIndex == 3) { document.forms[0].ddlMember.disabled = 1; }
else { document.forms[0].ddlMember.disabled = 0; }
}
</script>
and thew .aspx code: <asp:dropdownlist id="ddlUserType" runat="server" onclick="CheckDropDownState(this);"></asp:dropdownlist>
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Sep 6, 2012
protected void DDLzone1_SelectedIndexChanged(object sender, EventArgs e)
{
BindDistrict();
}
[Code]......
here when i click on ALL item from ddlzone1 it just "ALL" item in ddldistrict
i want when i select "ALL" item from ddlzone1 in ddldistrict14 show all data from database
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Jul 6, 2010
Can i get a multiselect dropdownlist with option to select all and select none. I need it urgently....please send the control to arup.bhattacharya@[URL].
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