Data Controls :: Could Not Find Selected Index In DropdownList
Apr 28, 2014
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<table align="center">
<tr>
<td>
<fieldset>
<legend>
[code]...
For Edit I want to select the OfficeName before Selecting a Department or any another way to do this
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Mar 13, 2011
i know how to find the index of selected row in asp gridview , but i need to find the index of selected column in asp gridview ?for ex:i have i gridview contains columns with header ( the header is the primary key i looking for ) , this grid contain linkbutton , i want to get the column header name on click on linkbutton ?
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Feb 8, 2011
I have a problem in setting the selected index /value in a drop down list. The list is bound by a Linq query and I want to add an item at the top of the list and set it as the selected item.
THis is the code i am using
ListItem li = new ListItem("Select", "", true);
list.DataSource = (from ap in edc.Approvers
where ! ap.approverEmail.Equals("")
orderby ap.approverEmail
select new {ap.approverEmail}).Distinct();
list.DataTextField = "approverEmail";
list.DataValueField = "approverEmail";
list.DataBind();
list.Items.Add(li);
list.Items.FindByText("Select").Selected = true;
The listItem li is the item i want to be first in the list and also selected. Adding this before the databind just loses the item.
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Sep 13, 2010
I have a dropdownlist1 control in footer template, but when i go to edit command for editing an existing row. at that time. the footer dropdownlist box showing exact index which is selected in edit template dropdownlist box.
dropdownlist1 is in footer template and dropdownlist2 is in edit item template.
same datagrtid i am using for adding new rows via footer template and editing existing rows via edititem template.
how to make dropdownlist1 which is in footer template to selectedindex "0", when i go to editcommand. tried using itemdatabound but not working.
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Aug 27, 2010
I have a panel which has a repeater within it. Within the repeater I have a few controls. One of those controls is a Drop Down list which has an OnSelectedIndexChanged event. I can get this to fire without issue but I cannot find my DropDownList control within that repeater within the SelectedIndexChanged event . The repeater has an OnItemDataBound event and I can use the RepeaterItemEventArgs to find the control using e.Item.FindControl("ControlName") without issue but when that event occurs is NOT when I need to find the DropDownList.
What I want to do is have another control's Visible property be set to "true" when the value of the DropDownList meets a certain value. As far as I know I can only do this during the SelectedIndexChanged event and I can't change the signature of the event by trying to use RepeaterItemEventArgs.
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May 7, 2015
In ASP.NET, I can get the selected index of dropdownlist using:
var dropdown1 = document.getElementById('dropdown1');But I want the selected index of that dropdownlist, which is present INSIDE a GridView.How to get that using JavaScript?
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Jan 5, 2014
I want to create a drop down list, where user can view the code name and the name the code when they click on the drop down list.
But after they choose, only the code is appeared. This is my current coding as for now.
<asp:DropDownList ID="ddlcodetype" runat="server">
<asp:ListItem Selected="True">-</asp:ListItem>
<asp:ListItem>DK Deck</asp:ListItem>
<asp:ListItem>EG Engine</asp:ListItem>
<asp:ListItem>CT Catering</asp:ListItem>
<asp:ListItem>OT Others</asp:ListItem>
</asp:DropDownList>
With this, both my name and the code name are appeared.
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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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Jul 17, 2015
How do i change the name column text the current row when the selected index of drop down is changed? ex:first row is mudassar khan and belgium, when i change belgium i want mudassar to be replaced to a name which i fetch from database....
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May 7, 2015
i need to Filter and display Google Map Markers from database based on DropDownList selection. for that I need to pass the selected value of DropDownList to the query.What should i do in the following code to do the above task?
using System;
using System.Collections.Generic;
using System.Linq;
using System.Web;
using System.Web.UI;
[code]...
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Apr 27, 2016
how can i fetch the data from different tables stored in database on the value selected of dropdownlist..for ex.
DropDownlist1.selectedValue=="HEG01"
then the data from that table will be fatched from the databse and entries are displayed in gridview.
DropDownlist1.selectedValue=="RES01"
then the data from that table will be fatched from the databse and entries are displayed in gridview.
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Jan 4, 2013
i have gride view and there are three dropDownList in every row in grideview,i want get selected value from every DropDownList,and pass the values to storeprocedure in sql,I dont know how pass value every row, to store procedure,and StoreProcedure get 3 value.
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Jul 2, 2012
I want to filter grid view, drop down list should select the column and text box will filter the column. like ID NAME Phone Designation fields in gridview.i will select Designation in dropdown and type programmer in text box .so it should filter programmers from the gridview...
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Oct 18, 2010
Iam using a dropdown list ,in that am having 4 values ,the following are my values
Uk-L1
Us-L1B
Aus-BUssness
Uk-HSMP
and here i need to choose the a particular value as a selected index ,and i did that for a exact value and in my requirement i will pass only the values after that '-' .so that i need get the value to be selected and here am using the following code to select it is not working can any one help for this.
Code:
DropList.SelectedIndex = DropList.Items.IndexOf(DropList.Items.FindByValue("L1"));
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Feb 28, 2011
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 + "
";
Label1.Text = item.Text;
}
}
No use, no value coming in to label.
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Nov 26, 2010
I am binding months to a list 0-13 items default selection is 0 months duration, and years 0-8 items and 0 years is the default selection.As I know there are always going to be 12 months in a year, I could use selectedvalue or selectedindex without any perceived problem. Is there a reason why I should not use either/or of the two properties to select a list item?
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Oct 12, 2010
i have 2 drop down list..first for city and second for state i want to fill the state list when the city is selected...m using the code
protected void Ddl_SelectedIndexChanged(object sender, EventArgs e)
{
String sqlQuery="select SM.StateId,StateName From StateMast SM,CityMast CM where CM.StateId=SM.StateId AND CM.CItyId='"+ Convert.ToInt16(DdlCity.SelectedValue.ToString())+"'";
DdlState.DataSource = cls.Select(sqlQuery);
DdlState.DataTextField = "StateName";
DdlState.DataValueField = "StateId";
}
but nothing is happing on selecting city..i have set the autopostback of city=true..select is a function which is returning data tablepublic DataTable Select(String sqlQuery)
{
con.Open();
SqlDataAdapter adapter = new SqlDataAdapter(sqlQuery,con);
DataTable table = new DataTable();
adapter.Fill(table);
con.Close();
return table;
}
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Jan 25, 2011
I have two control page in my aspx page. first one left side "tree view",second one right side " form design".Form design will change based on tree view selected index changed.i have 4 level child node(site, master , slave, space). I have seperate forms to each level of node.
cannot update tree node when update the forms. so i reload tree view.
now i need how to auto selected index change to tree node.
ex.
1 parent node
1.1 child node
1.2 child node
i have update "1.2 child node" rename to "1.3 child node"
and reload treeview so it will chage...
how set tree node.selected index = 1.3 child node....
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Jul 12, 2012
I am using SelectedIndexChanged in the DropDowList and it works fine and populates a GridView based upon a site selection.
Is there there a way I can reset the SelectedIndexChanged so if user wants to refresh the GridView they would open the drop down list and click on the same selection again?
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Jan 26, 2012
I am populating a DropDownList from a text file (class requirement).
The file is read in the Page_Load method and the DropDownList is populated then.
When I press the Submit button, throughout the process of the code it is supposed to get the SelectedIndex and use it to grab a value out of a List(Of ).
The thing is, nothing is ever passed through. I even setup an alert box and it passes right over the alert box and never even triggers it, but gives me an Index out of range error when it moves to the line right after the Alert.
Code:
Redacted to keep people from stealing classwork.
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Dec 4, 2010
I have a user control that has some drop down lists. These DDLs are used by the user to filter their product search on my search page. A button is used to post the form and get the results of the product search. Those results are displayed on the results page, which also has the search filter user control on it. I'd like the results page to have the values of the DDLs be preserved from the search page. Example: user selected color of red and size of large on the search page. When the results page is displayed, I'd like the selected color to be red for the color DDL and the size to be large for the size DDL. How can I do this?
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Aug 30, 2012
How to select next row of grid view on selected index change event on dropdownlist in gridview...
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Feb 23, 2013
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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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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Sep 23, 2010
Seems I can't find a way to get row index (or id) for the row just updated in gridview1_RowUpdated()
(in RowUpdating, I can use: for example:
txtActivityID = CType(gridview1.Rows(e.RowIndex).FindControl("txtActivityID"), TextBox)
)
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