Forms Data Controls :: Dropdown's Selectedindexchanged Event Not Fire In IE?

Feb 11, 2010

In one webpage,

There is one updatepanel in that one gridview,

there is one dropdown in headerrow of gridview,

dropdown's selectedindexchanged event fire in FireFox but not in IE.

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Forms Data Controls :: SelectedIndexChanged Event Does Not Fire When Binding DataSource To ListView

Mar 5, 2010

I'm using VS2008. When a dataset is bound to the DataSource of a ListView, SelectedIndexChanged event does not fire. If I used DataSourceID instead, it has no problem. But SelectedIndexChanging event fires for both.

why and how I can get SelectedIndexChanged event fired when DataSource is used?

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Forms Data Controls :: Fire SelectedIndexChanged Event Of DropDownList When SelectedValue Is Coming From Database Table?

Jun 28, 2010

I have a form which has some dropdownlists (ListItems "Yes" "No"). I use my form to Enter data & submit to database and use same form to Edit aswell. Like I redirect to this form from another page with a QueryString. If there is a QueryString then SELECT * FROM Table WHERE ID = QueryString's value & fill all the controls in the form like

[URL]

I have certain things to do when DropDownList.SelectedValue = "Yes" so I can use SelectedIndexChanged event handler & AutoPostBack="true" when submitting form for the first time. Now when I edit the information(Data filled from table as stated above). How can i automatically fire all events like DropDownlist SelectedIndexChanged in the page_Load iteslef so that all the things that are supposed to be done when DropDownList.SelectedValue = "Yes". I'm posting my test code for reference to explain what I'm trying to do. This is just the Idea. I have something else to deal with if i can get this stright. I need to dynamically add controls based on the values of DropDownList. please suggest some thing guys.

[Code]....

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Data Controls :: Fire RadioButtonList / SelectedIndexChanged Event Conditionally For Some Items?

Oct 22, 2013

i read article "using javascript with asp.net radiobuttonlist control" and i found it useful.

[var RB1 = document.getElementById("<%=RadioButtonList1.ClientID%>");
var radio = RB1.getElementsByTagName("input");
if am setting radio[1].checked = 1; the item is checked. ]

step1: radio[0]=checked
           radio[1]=not checked
            radio[2]=not checked

step 2: by using javascript , am changing the selection

now 

           radio[0]=not checked
           radio[1]=checked 
          radio[2]=not checked

step 3: if am changing radio[0]=checked by clicking, it wont fire the selected index change that i wrote on code behind

but if am changing radio[2]=checked by clicking, it will fire the selected index change that i wrote on code behind

My requirement: i want to fire the selected index change in both cases. for that i need to change the selected index in step 2.

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Data Controls :: Prevent SelectedIndexChanged Event To Fire On Checkbox Checked In GridView

Jul 31, 2013

I have a grideview and inside grideview I have check box ,I don't want SelectedIndexChanged grideview event to fire on checkbox checked in GridView.

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AJAX :: Cascading Dropdown SelectedIndexChanged Doesn't Fire

Jun 11, 2010

I just wanted to clarify if selectedIndexChanged works on ajax cascading dropdowns as mine doesn't fire. Its in a user control inside an accordion pane. I've read conflicting things about this. All I want to do is check that the last of the 3 cascading dropdowns has been populated an enable a button if so.... but the event never fires when i make a selection on the last dropdown. If it isn't suppose to fire is there a way to raise an event when the selection is made and unmade (as when you change one of the other dropdowns the value resets and the buttton needs to be disabled.

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Web Forms :: How To Call Dropdown SelectedIndexChanged Event In Page Load Event In C#

Oct 15, 2010

in my web form i have a department dropdown box, in its selectedIndexChanged event i have to fill the equipment dropdown box and in equiment dropdown selectedIndexChanged i have to fill out the other textboxs.

the depratment dropdown box get its value from sqldatasource.

[code]....

what i want is when i run the page, it shows the very first deparment in the list, and according to that it should pop up the values in the other fields, means it should show the values in the equipment dropdownbox and from that one it should pop up the values in the other textbox.

here is my selected indexchanged event for department dropdownbox

[Code]....

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Web Forms :: Fire DropDownList SelectedIndexChanged Event Without Reloading Page

May 7, 2015

I have a gridview and dropdownlist, let say the content of dropdownlist is YEAR and the content of gridview is Name and Year. Now for everytime I change the Value of dropdownlist the content of gridview will change but it will not load the page

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C# - Why DropDownList.SelectedIndexChanged Event Does Not Fire

Feb 9, 2011

I have a DropDown which is bounded to an ObjectDataSource. On its data bound event, I am adding "--select--" value on the 0 index. I have a LinkButton on the page and on its client click, i am selecting different item on drop down (using JavaScript). Suppose there are 3 items like --select--, option1, option2 and option3 and now on link button's client click i selected option3, now if I select the default value "--select--", it does not fire the SelectedIndexChanged event. If I select any other value then it fires. Why does it not work for the default value?

[code]....

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SelectedIndexChanged Event Doesn't Fire

Nov 2, 2010

I have added the AutoPostBack = "true" attribute to the drop down list. It doesn't work.

<asp:DropDownList CssClass="dropDownList" ID="ddlBusinessUnit"
AutoPostBack="true" runat="server" Width="250px"
OnSelectedIndexChanged="ddlBusinessUnit_SelectedIndexChanged">
</asp:DropDownList>

code behind:

Protected Sub ddlBusinessUnit_SelectedIndexChanged(ByVal sender As Object, ByVal e As System.EventArgs)
Response.Write("Hello")
End

How can I ensure that the event method is called?

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How To Fire Dropdownlist.selectedindexchanged Event Programmaticaly

Apr 21, 2010

I have some code which fires when user selects an item in dropdownlist. Now i want the same code to fire when i set selectedindex programmatically.

I have tried setting

ddlSystemLevelDCP.SelectedIndex=2;

and this as well

ddlSystemLevelDCP.SelectedValue="2";

None of them fires this event.However when user changes the selection,this event fires.Please tell me what am i missing.

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How To Determine The Index That Caused The Selectedindexchanged Event To Fire

Aug 4, 2010

I have seen a million forums ask this question. This is what has been working for me.

protected void checkboxlist_SelectedIndexChanged(object sender, EventArgs e)
{
CheckBoxList list = (CheckBoxList)sender;
string[] control = Request.Form.Get("__EVENTTARGET").Split('$');
int idx = control.Length - 1;
string sel = list.Items[Int32.Parse(control[idx])].Value;

I'm way off and have just been lucking out, but I haven't seen a case where the index wasn't the last value in a '$' terminated string.

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Update Panel - Textbox TextChanged Event Is Interfering With The DropDown SelectedIndexChanged Event?

Oct 20, 2010

Basics: I have a text box (txtDepositAmount) that people can enter a deposit amount into and a drop down (ddlSelectedTerm) that sets the terms. Through these two values I calculate the APY (lblCurrentApy).

Rules: If only one of the values is selected I still want to do an update on the current APY label and clear it. If either value changes I want to update the current APY and recalculate.


The problem: As soon as I click away from the textbox and onto the drop down to select my term the drop down flashes and closes because the textbox TextChanged event was just fired.

I have to click on the drop down a second time to be able to select anything!

Do I need to change what event I'm looking at or do I need to move some of the controls outside of the UpdatePanel? Can this only happen if some of the business rules change? Should I just give up and go to javascript?

[code]....

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Forms Data Controls :: Onchange Before Fire SelectedIndexChanged For Datagrid DropdownList?

Aug 12, 2010

I'm trying to display a confirm message box before firing selectedIndexChanged when user change selection in the dropDownList. I was wondering if anyone would an example of how to do this.

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SelectedIndexChanged Event Doesn't Fire When Create A Dropdownlist In Code-behind

Dec 9, 2010

I create a dropDownList in code-behind, in selectIndexChange of another dropDownList, and add this new dropDownList to page using a placerHolder, everthing its ok, but new dropdownlist selectIndexChange event dont fire!

code of dropDownList creation

dropDown = new DropDownList();
dropDown.AutoPostBack = true;
dropDown.ID = idSubistema;
dropDown.Width = 400;
dropDown.CssClass = "controltext";
dropDown.DataValueField = "IDNivel";
dropDown.DataTextField = "NIVEL";
dropDown.EnableViewState = true;
dropDown.DataSource =
DBLibray.DefinitionIndicadores.spSelect_FillCombosWithNivelByIdParent(
ref dataConnector,
Convert.ToInt32(idSubistema));
dropDown.DataBind();
dropDown.SelectedIndexChanged += new EventHandler(indexChange);
//dropDown.PreRender += new EventHandler(dropDown_PreRender);
placeHolderForCombos.Controls.Add(new LiteralControl("<div>"));
placeHolderForCombos.Controls.Add(lb);
placeHolderForCombos.Controls.Add(new LiteralControl("<br>"));
placeHolderForCombos.Controls.Add(dropDown);
placeHolderForCombos.Controls.Add(new LiteralControl("</div>"));
placeHolderForCombos.Controls.Add(new LiteralControl("<br>"));

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AJAX :: Dropdown SelectedIndexChanged Event Is Not Firing

Sep 13, 2010

I have a usercontrol and in that i have a dropdown. i need async postback for dropdown selectedindexchanged event. i set the AutoPostBack=true for dropdown. Eventhough the event is not getting fired.

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Dropdown Selected Change Event Fire On Button Click Event?

Sep 24, 2010

I have write the code in .Net. When I click the Buttun then fired below event.

protected void ddldesignation_SelectedIndexChanged(object sender, EventArgs e)
{
Code.
}

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C# - Button Event Does Not Fire, As Its Being Blocked By Another Event On Dropdown Occurs (uxFromDate_TextChanged)

Nov 23, 2010

I have a button which has a click event but its not firing on the first click. I suspect its something to do with that i am in dropdown box control so when i click the Button the event for the dropdown box occurs (textChanged) but it forgets about the click event

Of course if i click it a second time it works.

Or if i click somewhere else first so that the event TextChange occurs and then click the Button the first time it executes..

Is this normal and what are more workarounds if any?

basically the TextChange event must fire but the button click event must fire as well.

All the events i am talking about are ASP.NET events.

here is some examples of the events i am using - both the button and dropdown

uxGetData is a button and uxToDate is a dropdown box

[code]....

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Forms Data Controls :: Get Row Data In SelectedIndexChanged Handler For Dropdown Nested In GridView

Aug 2, 2010

I have a GridView, with a DropDownList as one of the Columns. I can get the SelectedIndexChanged method to trigger - but I cannot figure out how to get other Data regarding which row this triggered on i.e. if I could get the value in the ID column (DocID below), that would be great. My code is a bit too long, so I am just posting snippets. In the *.aspx file I have:

[Code]....

In the *.aspx.cs File:

[Code]....

I am wondering if I can get the DocID from within StatusDropDownList_SelectedIndexChanged - so that I can make appropriate changes to the Database. For e.g. in the RowDataBound event, which I had a GridViewRowEventArgs e, I could easily do e.Row.DataItem - to get the DataItem, I am wondering if I get/do something similar in the SelectedIndexChanged method. (I would prefer this be not the GridView Row Index i.e. I would prefer the DataItem if possible.)

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Forms Data Controls :: How To Get SelectedIndexChanged Event From UC

Feb 17, 2010

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?

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Forms Data Controls :: DataGrid Button And Event In Footer, Event Not Getting Fire

Sep 3, 2010

I have one Datagrid with Footer. Footer Row Contains Input fields with one Button to add New Values. I have button click event but not getting fires. my code follows:

[code]....

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Forms Data Controls :: Get Datavaluefield On SelectedIndexchanged Event Of Another Ddl Using Linq?

Aug 31, 2010

I have 2 dropdownlist - State and City. I want to fill city drop down list on selectedIndexChanged event of state drop down list. I fill the State ddl ( DataTextField = "Locationname" & DataValueField = "Locationid" ) using linq and when i changed state I didn't get "Locationid" and I got error - " conversion from string "Locationid" to type "Double" is not valid" .

following are the code

[Code]....

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Forms Data Controls :: Call Javascript From SelectedIndexChanged Event In C#?

Feb 15, 2010

I want to call javascript from SelectedIndexChanged event of GridView.....how to do that

protected void gridSlave_SelectedIndexChanged(object sender,
EventArgs e)
{

[code]...

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Forms Data Controls :: Dropdownlist In A Repeater Firing The SelectedIndexChanged Event?

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I have a dropdownlist in a repeater and it's firing the SelectedIndexChanged event but in teh event handler I can not get the dataitem associated with the row that the DDL is in. Here is the code:

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Get the DataSource of GridView control in SelectedIndexChanged event handler?

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