Web Forms :: On Dropdownlist Selected Indexchange Event The File Upload Data Is Lost?

Jun 7, 2010

hi iam using asp.net with c#in my form there is file upload control to browse and get the image and there is dropdownlist control from which i have to select the items ,on selecting the items from dropdownlist onselectedindex changed event ,the file upload control is becomming empty how to handle this situation

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I have a Drodownlist , hich is being filled with data from tables at Page Load with the check that Postback is false. Now I want to insert the selected value of dropdownlist to the table, but after pressing the Submit button, its numeric value is getting lost and is substituted with a "" (blank). How do i persist its value.

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Data Controls :: Selected Value Of DropDownList Inside GridView Getting Lost On PostBack

Mar 14, 2014

I can not get the Selected Item value in in GridView Dropdowntemplate Feild

I Get Only First index item text value

string ItemSkuCode = ddlIMEntity.SelectedItem.Text + "-" + txtIMItem.Text + " -";
foreach (GridViewRow tempr in gvParameter.Rows)
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if (ddl.Items.Count > 0)

[CODE]..

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Web Forms :: Selected Value Of DropDownList Getting Lost When Binding With XML

Jun 11, 2012

i am loading xml file from url and storing data into my database.i am binding that data with my dropdownlist bt the problem is wheneverr i select any option from ddl...by defaulst it takes the always takes first selected index...i.e value at the zeroth index value.....i really don't know what exactly the problem either the problem is with dropdown or the way i am loading xml file and binding it to dropdown.....below is my cs code.

protected void Page_Load(object sender, EventArgs e)
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[code]...

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Web Forms :: DropdownList Selected Value Clear (lost) After Every Postback

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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Web Forms :: DropDownList Selected Value Getting Lost When AutoPostBack Is True

May 7, 2015

Am using DropDown list. Whenever Autopostback is true it selecting first value of dropdown list...

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Web Forms :: Dropdownlist Values Lost During Button Click Event?

Oct 15, 2010

i'm jquery ajax for cascading dropdown operations is works well.but my problem is whenever the button the clicked the second dropdown values is lost .......

note : i have placed two dropdownlist one for binding the class bind from server side code and second dropdown is for binding the division from client side using jquery ajax...

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AJAX :: DropDownList Selected Value Lost When Populated From Code Behind

May 7, 2015

When I use the code below an error accur when click add button to insert into sql because the selected value in DropDownList is back to --select-- Idon't know why it should be the the value I selectedbut when not use this code and bind the DropDownList using wizard it works but I need to use the code to make the first selection is --select--.

private void PopulateDropDownList() {
string constr = ConfigurationManager.ConnectionStrings[1].ConnectionString;
using (SqlConnection con = new SqlConnection(constr)) {
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[Code] ....

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AJAX :: DropDownList Using Modal Popup Extender - Selected Value Getting Lost?

May 7, 2015

I am unable to get the selected value of the DropDownList.  When the user selects a value and clicks OK, the value that was loaded as the default selected value with an index of 0 is available in code behind, not the newly selected value.  See the attached code for the dropdownlist in the Modal Popup form.

<div class="well" style="margin: 5px">
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[Code]....

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Forms Data Controls :: How To Capture A DropDownList Selected Index Change Event

Sep 15, 2010

I have a gridview that receives data based on selection from a primary dropdownlist object. Works.

Within the gridview, there is a dropdownlist whose selected index is based on the query from the primary dropdownlist. Works.

Problem.

How do I force the used to change whatever value that the dropdownlist contains after they make their initial selection from the primary dropdownlist; except the default value of "make a selection".

Gridview, contains a checkbox which drives whether a selected row is inserted into the data base. The databind in done using an ObjectDataSource on the presentation page, not in the code behind.

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Web Forms :: DropDownList Selected Item Is Lost And Default Item Is Inserted In Database On Button Click

Jul 16, 2012

I bind dropdownlist in my page

protected void Page_Load(object sender, EventArgs e) {
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}

And SP

LTER procedure [dbo].[city1]
as
begin
select id,Name
from city
end

And design code

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string data = Server.UrlDecode(Request.QueryString["BehCode2"]);
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_cn.Open();

[Code] ....

Here when i click on button it insert all data into table but it didn't insert my selected item from dropdownlist it insert select city that i define in page_load

 DDL1.Items.Insert(0, new ListItem("select city", "0"));

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May 7, 2015

how to image upload without button click c#?

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i ask what code can generate on how to Populate and save ASP.Net Dropdownlist with Selected Value in Gridview Rowupdating ?

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File Upload Control - Select File Is Lost When Second Control Is Initiatied?

Dec 29, 2010

Our problem/question revolves around an upload control that loses the selected file (goes blank) when a postback control is used (in this case, the dropdown list posts). Any insight into what we are doing wrong or how we can fix this? Below is our code and a summary of the problem.

<asp:updatepanel id="UpdatePanel1" runat="server">
<ContentTemplate>
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<asp:DropDownList runat="server" AutoPostBack="true" ID="CategorySelection" OnSelectedIndexChanged="CategorySelection_IndexChanged" CssClass="drop-down-list" />
</div>
<div id="SubCategory" class="row" runat="server" visible="false">
[code]...

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Web Forms :: Selected Index Change Event On Dropdownlist In Gridview

Aug 30, 2012

How to select next row of grid view on selected index change event on dropdownlist in gridview...

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there is 3 drop down list control in in first dropdown load Districts when page load when we select or index changed in drop down1 items changed or loaded in drop down list2 according to the disrict.According to the item selected in drop downlist2 items changed or loaded in drop downlist3.

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Web Forms :: Prevent The Firing Of Index Changed Event In A Dropdownlist When 'NO' Is Selected?

Mar 20, 2011

I have a simple query based on the index changed event of a dropdownlist in ASP.NET. The scenario is i have a dropdown list bearing a collection of items (say ONE, TWO, THREE, FOUR, FIVE) with the default value selected as 'ONE'. Now, when the client changes the index (say the client selects 'TWO'), a confirmation box is prompted asking 'Are you sure want to change the index?' with the buttons YES & NO. Now, the problem is, if YES button is clicked then its working fine as the index is changed. But when NO button is clicked in the confirmation box, I do not want the index to be changed to 'TWO' and it should be holding the previously selected value which was 'ONE'. How can I do this? For which event should I write the code, as I cant think of writing the code for the IndexChanged event because here the index change has already occured and since there is no 'IndexChanging' event in ASP.NET, where shall i write the code

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I am selecting the file in the file uploader and when i press the button,the page gets postbacked and the selected files in the file uploader gets removed. I need to remain the selected file in the file uploader even thought the button clicked.

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Forms Data Controls :: Grid View Row Command Event Lost?

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The grid view row command does not execute on my production environment. This is a intermittant issue. I am not able to reproduct the exact steps but it does occur too often.

I have a load balanced environment with 2 identical servers in the farm. The servers are running on IIS 7.5

The other scenario in which I observe this is when the session times out. In that case the grid view events are lost. But this scenario is not a priority for me. I need to resolve the first scenario.

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An update: we are overriding the PageStatePersister as:

[Code]....

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How to get the selected item from the listbox in the selected index changed event. I tried: Label1.Text = ListBox1.SelectedItem.Text; It is giving me object set to null reference.

foreach (ListItem item in ListBox1.Items)
{
if (item.Selected)
{
//lblResults.Text += item.Text + "
";
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}
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No use, no value coming in to label.

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Check Whether The File Is Selected In File Upload Or Not?

Feb 3, 2011

How can i check whether the file is selected in file upload or not

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Web Forms :: Button Click Event Not Working When File Upload Has Value

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I have a file upload control and a submit button(). when file upload haven't any value(no file selected), button is working. when it has selected any file to be uploaded its not enter to the event handler where i have put a breakpoint

.aspx

[code]....

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Data Controls :: How To Upload Default Image Into Database When No Image File Selected

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I have to insert default image into databse..when no image is selected from fileupload control.. Here is code...not working for default image...

if (FileUpload1.HasFile){string FileName = System.IO.Path.GetFileName(FileUpload1.PostedFile.FileName);
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Feb 24, 2011

ones i select file i want to process that file directly not need to click another button to process

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