Forms Data Controls :: DropDownList Is Only Selecting The Default Value?
Oct 11, 2010
The intension is to get the all text file names in the drop down present in a particular location. When a user selects any filename from the drop down, it will show the data which is in that particular text file in a GridView.
I've done both the steps and it's almost complete but i stuck on a small issue. Probably because of non-usage of ASP.NET for a long period of time. The problem is, the drop down only selects the default value not other values.Here's my code for DropDown Selected Index Change
protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
{
DirectoryInfo di = new DirectoryInfo(@"C:myLogs");
[code]....
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Similar Messages:
Aug 13, 2010
I have a dropdownlist that controls what the users see in the gridview. I want to be able to have the users select "All" as an option. For example the drop down would for years would show: All, 2010, 2009, 2008. How do I code for the user selecting "All"? I am using ASP.NET 3.5 and C#
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Apr 27, 2016
According below code I save data in session:
protected void Imgorder_Click(object sender, EventArgs e)
{
ImageButton ibtn = sender as ImageButton;
int id = Convert.ToInt32(Request.QueryString["Id"].ToString());
DataTable dtFiles = GetFilmInfo(id);
string Name = dtFiles.Rows[0][1].ToString();
[Code] ....
In gridview I define dropdownlist that when change I tem it will change price value...
protected void DdlQuantityS(object sender, EventArgs e)
{
DropDownList ddlQuantity = (sender as DropDownList);
Label quantity = ddlQuantity.NamingContainer.FindControl("LblQuanyity") as Label;
quantity.Text = ddlQuantity.SelectedItem.Text.Trim() == "Select" ? "0" : ddlQuantity.SelectedItem.Text.Trim();
Label price = ddlQuantity.NamingContainer.FindControl("LblPrice") as Label;
[Code] ....
And according below code it will show quantity number in dropdownlist:
protected void OnRowDataBound(object sender, GridViewRowEventArgs e)
{
using (SqlConnection conn = General.GetConnection())
{
using (SqlCommand cmd = General.GetCommand("OrderNum", conn))
[Code]....
Now I want when I change dropdownlist Item from gridview it will save quantity(selected Item from dropdownlist) and price and priceT in seesion["Order"] that created in ImgorderM_Click metod...
How I can do it?
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Jan 11, 2010
what i have a is a dropdownlist and what i have done is set the datasource to be "select top 10 * from Orders"I have only displayed the OrderID , CustomerID and the Freight i would like to display in a dropdownlist. But what is happening is that for all 10 rows the dame value in the dropdownlist is shown. The dataset that is bound to the dropdownlist initially is all that items in the database.i would like the freight for that particualar Orderid to be displayed even if it is lets say item number 5 in the dropdownlist or itemn number 2 .
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Apr 27, 2016
I have gridview and button and radiobutton in page below are codes...
<input type="radio" name="n" id="RBmkvM" runat="server"/>
<input type="radio" name="n" id="RBdvdM" runat="server"/>
<asp:ImageButton ID="ImageButton1" runat="server" CssClass="imgored" ImageUrl="~/Image/Main/png1.png" OnClick="Imgorder_Click"></asp:ImageButton>
[Code]....
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Oct 9, 2010
How to populate dropdownlist in a gridview by selecting another dropdown in same gridview
i tried the code in driiopdownlist selectedchanged
dropdownlist d=(dropdownlist)gridview.findcontrol("dropdownlist1") but it gives null
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Jan 28, 2011
I have a drop downlist,and next to it there is an MS bar chart.i want to change the datate of the MS chart ,once the user selects another year from the dropdownlist.
When the page loads ,the chart displays the default year(2011) and it works.The problem is that is does not change the data when you select another year from the dropdownlist.
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Aug 6, 2010
I have gridview that has month as a column. When the user clicks a row's edit button, that row goes into edit mode. I have created a drop-down list for month in edit mode with the values 1-12. Right now, the drop-down list shows 1. I would like it to show the current value for that row. How do I do this? Here's the code for my gridview:
[Code]....
Here's some applicable code from the code behind:
[Code]....
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Jan 18, 2011
How do i make the default entry in a dropdownlist not selectable? Right now I have a drop down and the users are able to select the default option that says (Select one)...here is what my code look like. I hard coded my options in there cause the list is really short and won't change ever. Right now, users can select the default entry and add it whatever list they are generating on the page...and I would like to make that default visible but not selectable.
[Code]....
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May 22, 2013
need to get selected value from dropdownlist,textbox and bind in grid
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May 31, 2010
I have 2 dropdownlist in my detailsview that second dropdownlist get thier data based first dropdownlist selecet value;
following error arised:
Databinding methods such as Eval(), XPath(), and Bind() can only be used in the context of a databound control
I solve it by this solution:
[Code]....
current problem:
when I want to insert new item ( detailsview insert mode), default value of my DropdownList sent to parmlist
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Apr 26, 2013
i have given 28 states as a datasource to the dropdownlist..whenever the user enters with id the dropdownlist must populate with his statename not from the first state (A to Z) as it is stored in database.?is thr any option to give query as default value to the dropdown?
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Jan 1, 2013
I have a dropdownlist for categories.
DataTextField = "Name";
DataValueField = "ID";
drp.Items.Clear();
drp.Items.Add(new ListItem("--select category--", ""));
drp.AppendDataBoundItems = true;
ID is int and I've got this
drpsub.Items.Add(new ListItem("--select category--", ""));
I want to insert some information plus ID in databaseeverything is ok when user select category from dropdownlist (for example: India, Iran, China) but when the userchoose --select category-- she face an error because the value here is "" not an ID(int value)how can i don't let user choose --select subcategory-- ?
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Dec 6, 2010
.aspx code looks like:
[Code]....
Now i have to create a textboxes dynamically in the same page as i select the Options value from drop down list...
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Mar 2, 2014
I have 2 Dropdown(say "DD1", "DD2") and 1 Listbox(say "LB") in my web form,value of the 3 controls depend on each other.
"LB1" is dependent on "DD2" value, "DD2" is dependent on "DD1" value.
I want that if user selects "LB1" without selecting "DD2", it should give a message that "please select DD2 first"similarly if user Selects "DD2" without selecting "DD1", it should give a msg that "Please select DD1 first" ,using ASP.NET C.
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Jan 2, 2011
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...
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Mar 28, 2011
i'm using a strongly typed view with a custom viewmodel. this viewmodel contains a collection of books.
public IList<Books> Books { get; private set; }
i'm also passing a select-list to the view. however the DropDownListFor helper class doesn't automatically preselect the default value of the book.
@Html.DropDownListFor(m => Model.Books[i].AuthorID, Model.Author as SelectList)
everything else works, e.g. it does pass the selected value back to the controller.
i figured out a workaround by creating the select list in the viewmodel:
@Html.DropDownListFor(m => Model.Books[i].AuthorID, new SelectList(Model.AuthorList, "Value", "Text", @Model.Books[i].AuthorID.ToString()))
however i don't want to implement this workaround if there is a simpler solution. is there a way that the view can handle values from a collection?
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Aug 4, 2010
I have a drop-down list that is dynamically filled with a set of values. By viewing the source code in the browser I can tell that this list is correctly filled with the "value" and "text" parameters.
But if I try to retrieve the value using ddl.SelectedItem.Value I get the error "Object reference not set to an instance of an object" which means that there is no parameter in "value" to retrieve ...
Page_Load() contains an "If Not IsPagePostback" in which the list is filled. I don't want to use AutoPostback = True since I want to retrieve the value-parameter when I click a "save" button. I must have missed something fundamental here that I do not grasp ...
The code to fill the list looks like this:
Code:
Dim ds as Dataset ()
ds.ReadXml(the path to an xml file)
ddl.Items.Add(New ListItem("destination", "destination"))
ddl.DataSource = ds.Tables(0).DefaultView
ddl.DataBind()
This snippet does not generate any errors: Everything is printed as it should!
But inside my Submit function I cannot be retrieve the parameter:
Code:
objcmd.parameter.add("?destination ", OdbcType.VarChar).Value = ddl.SelectedItem.Value
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May 28, 2010
I want to select a particular item in a dropdownlist by value, in asp.net using IronPython.
I found I can do it like this
listItem = ddl.Items.FindByValue(x)
if listItem != None: listItem.Selected = True
But I want to do it in one line
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Mar 31, 2010
I have a table MemberProfile with columns FirstName, LastName, Gender and ComplexionCode.here iam displaying complexioncode as a dropdownlist with values fair, very fair, brown and when user selects a value I want to insert that in to table
I have creted a class( LookUpCodes) and written following code
public static IEnumerable<ComplexionCode> ComplexionCodes
{
get
[code]...
now when I click the button FirstName, LastName Gender are inserting in to the table. only Dropdownlist( ComplexionCode ) value is not inserting.
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Apr 6, 2010
I have a grid and dropdownlist.I want to filter values in a grid by the selection of dropdownlist.How Can i do this? My code is like this
<asp:DropDownList ID="DDLVisitedVol" runat="server" AutoPostBack="true" DataSourceID="DsVisitedVol"
DataTextField="VisitedVol" DataValueField="VisitedVol"
Width="244px">
</asp:DropDownList>
<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString=""
ProviderName=""
SelectCommand="SELECT [ID],[UserName], [Email], [visitedVol] FROM [HitTracker] where visitedVol=@VisitedVol ">
<SelectParameters>
<asp:Parameter Name="VisitedVol" Type="String"/>
</SelectParameters>
How can i pass the selected value of dropdown list to @VisitedVol.
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Feb 22, 2010
I am having trouble with DropDownList (and/or DropDownListFor) when using TemplateInfo's HtmlFieldPrefix in a strongly-typed view. DropDownList properly selects the value from the model when the prefix hos not been site. Once I set the value of HtmlFieldPrefix, the value from the model is not selected in the drop-down list.
I am using .NET 3.5SP1 and ASP.NET MVC 2 RC2.
Model:
public class TestModel
{
public string Text { get; set; }
public string Option { get; set; }
[Code]....
Is there something I should be doing differently to have the proper value selected in the drop-down list?
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Feb 23, 2010
I have a page that successfully displays a gridview. I am not able to select any of the rows. I put a breakpoint in the GridView1_SelectedIndexChanged method but it never gets executed. When I click on the "selected" column in the row I want, I just get the The page cannot be displayed message in my browserIs there something I need to do to make the rows "selectable"
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Feb 1, 2011
Im working on an ASP.Net web forms application, where I have a form and the Index is working correctly, until I select a value from one specific control, a dropdownlist. After that no matter what control I am on if I press TAB it will go to the URL/Address Bar, from there to the search bar and then again to the URL bar...
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Apr 9, 2010
I have several asp dropdownlists that are populated from a database. I would like it so that when an item is selected it opens a seperate page depending on the selection.
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