I have dropdownlist(width=150px fixed)
when lsititem is selected which is greater than 150px width
then dropdown width should increase autamatically depending on value selected
I have a gridview in which one of the columns is a DropDownList.
In another column I have a TextBox and a button next to it.
I want to use the OnClick event of the button to add the text in the The TextBox as a new list item in the DropDownList of that row.
I've this code wit no success:
protected void btnAdd_Click(object sender, EventArgs e)
Suppose I have a list of a couple of thousand organizations and a user needs to be able to select one of them. The list is too large to populate in a dropdown at page load, and the user often knows what they want but it's not the first part of the organization name. That is, they know "Collections" but not that the precise name of the organization is "Department of Collections". So the user will need/want to type in some information.
It's easy enough to use an autocompleting textbox of some kind, but I don't want to allow the user to type in random text - they have to choose one of the organizations explicitly.
i use a dropdownlist in a page, with its items taken from a mysql database
i also use autopostback property...my problem here is that, every time i selecct an item, the first item in the list gets seelected
I'm trying to add a list item to a gridView dropDownList for when a certain value is in a certain cell in the gridview's edit mode:
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I'm not getting any error but the 'if' is being skipped - the value of row.Cells[5] is not being read.
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 ?
I am using list view to display the the data but i am getting an error like An item placeholder must be specified on ListView 'ListView1'. Specify an item placeholder by setting a control's ID property to "itemPlaceholder". The item placeholder control must also specify runat="server.Even i have specified the itemplaceholder id but no use still same error.
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In my project requirement user wants to enter a manual entry if they can not find an item in the drop down list.
Right now what I am doing is:
I set the dropdown list autopost back true and on selectedchanged event I am hiding the drop down list and showing a text box to enter a manual entry...
This is working perfect and no problems..
but the drop down list needs to change to a text box on only selecting a "unknown" option in the list...all other list items are doing unnecessary post back to the server with no use...
I've run into a problem with expanding a dropdownlist when the client is IE6...The screen allows users to optionally specify search selection criteria from dropdown listboxes. Since there may be a large amount of selection data, the usage of which is optional, the selection dropdown lists are only populated on demand (i.e., when the user clicks on the listbox -- I use the OnMousedown event). This improves the overall performance of the system since most users will not use the optional search data, saving time since that data is not retrieved from the Web Services calls and not added to the lists.
After loading the list, I fire the OnClick event to simulate the user's mouse click and display the list items that were just added. For IE7 or IE8, firing the onclick event works perfectly to expand the list. However, this does not work for IE6 -- it requires a second and third click on the listbox to display the list. Note: replacing the fireEvent("onclick") call with alert() works with IE6 (haven't tried it with IE7) -- after clicking on the dialog, the list is displayed correctly. That's not a realistic option for production, but may shed some light on a possible solution.
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I have a web in asp.net and code in vb and sql database. There is a dropdownlist ina page the length is too big. How can I set to multi row or some other kind....
View 1 RepliesI used your link [URL]"
and implement in my Project your code is working but error is
I have 4 columns in database country, States, City and Area
in the area table 991 recordes are exists I am binding area onchange of City dropdown but records is not binding only showing loadding than I changed my storeprocedure write qurey to select top 673 records now area is binding but if I remove "top" from select its showing loading in area dropdown.
how can I solve this issue
<script type="text/javascript">
function PopulateArea() {
$("#<%=ddlArea.ClientID%>").attr("disabled", "disabled");
if ($('#<%=ddlCity.ClientID%>').val() == "0") {
$('#<%=ddlArea.ClientID %>').empty().append('<option selected="selected" value="0">Please select</option>');
}
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how to Get Text Item from Dropdownlist
View 7 RepliesI got this to populate the dropdownlist, but I'm not sure how to setup the codebehind to insert the selected value when I select it and hit "insert" in the detailsview.
Details View
<asp:DetailsView ID="DetailsView1" runat="server" Width="400px"
DefaultMode="Insert"
AutoGenerateRows="False" oniteminserted="DetailsView1_ItemInserted">
<Fields>
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i have a dropdown list with values
America
Asia
Europe
I need to the display the ddl as Select Type and when i click the dropdownlist to see the values in it, it should display the three values, but i should not use Select Type as a list item and it should not be displayed in the list. It should only be used as a default text in ddl.
I am using Asp.net with C#.
I have one gridivew, which is showing 20 records. And also, in item template of Gridview, I used one dropdownlist. It means there are 20 dropdownlist with all the 20 rows. That dropdownlist is already binded, means showing the records/items - 8 items. No issue with this.
Now, what I want is, when ever, I select any item from the drodownlist against each row in that gridview and click on the button "Save", it will save the id of all row with all the values of dropdownlist.
I have 2 dropdownlist controls (ddl1 and ddl2). When I pick an item from ddl1, it will update ddl2. The problem is when I pick an item in ddl2, it always selects the first item in the list. Is it that the ddl2 autopostback causes the first ddl1 to reload and results the ddl2 to be refreshed also? Or I didn't set something correctly?
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i have a dropdown list control which gets data from a database. how do i assign a value to each of the item.
View 3 RepliesI want to access a dropdown control value of each list item as soon as it is created. I tried with ItemCreated and ItemDataBound events but I am getting null contro when I try to access control as shown below:
ListViewDataItem item = (ListViewDataItem)e.Item;
int LstIndex = item.DataItemIndex;
RadComboBox ddlCategory = (RadComboBox)(listView1.Items[LstIndex].FindControl("rdComboCategory"));
Also, I get listview.item.count zero. IS there any event where I will get listitem count and list items?
I have a simple databound dropdownlist. On top, I have a default selection, '--Please Select--', followed by another default selection, '-- Other --'. Here's the script:
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Now, my user wants the '--other--' selection to appear on the BOTTOM of the dropdown as opposed to right sfter '--Please select--'. How do I accomplish this?
I have a databound FormView with a dropdown list of categories. All works as expected, but I want to provide the facility for the user to add a new category to the list and I can't find an elegant way to do it. My current approach is to have a simple modal popup (Ajax toolkit) with a FormView (bound to the Categories table). That successfully inserts the new row, but it doesn't show in the dropdown so it can't be selected. I can force a refresh by calling formview.DataBind() in a suitable event handler, but that of course moves the formview off the selected record and loses any changes the user may have made.
Is there a convenient way (perhaps using AJAX, avoiding a postback entirely) to update the Categories table and refresh the dropdown without moving off of the current FormView's record? I feel sure this
must be a frequent and basic requirement, but I've not found any mention of how to implement it.
[ASP.Net 4.0, by the way]
I have a drop down list . In that list i have to show more then 3000 value comes form SQL Server database
Becasuse of huge amount of data the drop-down list preforms slowly.... is there any way so that the dropdownlist performs faster.
i want datalist to show only 6-8items ,as these datalist is connected to datasource which has more than 20 items..
like in facebook,we have lots of friends but in friend box only 6 friends is shown and when we click that we go to next page which display all list of friends...
I have a dropdownlist and a button(btnSend).
protected void btnSend_Click(object sender, EventArgs e)
{
InsertIntoTemporary();
LoadAddressdetails();
MassSendOut();
}
What i need to do is as follows;
1) Once i select the item in the dropdownlist, it will extract data from my sql query which is :
string mySQL = "SELECT * FROM examtimetable WHERE subject_name= '" + dd_cat.SelectedValue + "'";
Once seleted,it will display everything in a gridview1.
subject_id subject_name admission_no date venue seat_no
I have been trying for a while to populate a formview when I select an item from the dropdownlist. The dropdownlist is outside of the formview. For some reason, when I select a different item it does not change in the formview. Only the first item of the list shows up. I don't know where I'm doing wrong. I tried many things and suggested informatioin and I still could not get it to work. When I do try to switch I get this error message:
Exception Details: System.NullReferenceException: Object reference not set to an instance of an object.
Source Error:
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i'm using asp.net 3.5 and what im trying to do is create the dropdownlist item dynamically base on value in each datarow, then user select from dropdownlist and click button to postback, when postback system should be able to know what value has been selected by user. the problem with following code is during postback, event of "OnItem_Created" get fired and e.Item.DataItem return null, therefore the dropdownlist will not get populated with the items and that caused the dropdownlist unable to return value selected by user. am i missing anything? is "OnItemCreated" the best place to dynamic create the dropdownlist item?
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