How can I keep the values in dropdown after a postback? I have this code:
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The dropdonws is set to autopostback. How can i bind the dropdowns in a better way then I do now? When I post back the dropdowns are set to default value.
I Have the gridview control with 2 dropdown list and 2 text boxes,When the textbox chnaged event happen 1 row will create and the dropdown back to initial values( its not retaining the selected values),I am binding the control after text changed method,Is there any properties needs to be set or any other way we can retain the values in postbacks?
View 4 Repliesin a web form, i am having two drop down controls, and in the first one control i am having, state names like some thing, and in another i have to fetch the concurrent city names for the first control, like if i select city name as 'A' it must fetch the related city names for the 'A' how could i do this.
View 2 RepliesI am populating a dropdown on page load and the user selects an item, click a button (to create a new site in sharepoint) I then want this new site to be shown in the dropdown but I can't get it to work properly. Either the items are duplicated or the selected value is null.
so on page_load I have
getSites();
if the page is a postback I want to reload the dropdown with the new item
if(Page.IsPostBack)
{
getSites();
}
but this of course duplicates all the values so I tried
if(Page.IsPostBack)
{
ddlSites.Items.Clear();
getSites();
}
But even if the site is reloaded with all the items and I select one the value is null, why is that and what should I do to fix this problem?
In dropdown when i select value(not text) "0" it should not go for postback,
to do this i am using e.preventDefault();
if i select other than "0" it has to go postback.
but,it is always going for postback ,the e.preventDefault(); is not working.
How can i achieve this in jquery?
return false; is also not working.
i am sure that i am selecting the value "0", i checked it by using alert();
A form contains 2 cascading dropdowns. When an item is selected in the first dropdown, jQuery retrieves a list (json) from the server and fills the 2nd dropdown.
The user posts the page to the server, and when the page is returned the dropdown is empty because its not stored in viewstate.
What do you do in this situation? Is this the point where cascading dropdowns using jQuery and trying to make your page a little more stateless gets tedious?
I have a dropdown that is populated from the database on my page_load event, however, the drop down looses its content after a postback.
View 4 RepliesI want to print the selected value from dropdown on web paage after postback (On select value) , (I have tried this but as i on postback its value dont change after selecting different value),,,, and also is thr any url that will provide chat on asp.net instead of forum as it takes long time for reply ......
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I have a dropdown listbox whose datasource is a dictionary.
When I have added items to the list and try to select an item from the list, the item I selected does not get the focus. And this comes when I changed the property autopostback to true.
Here are some of the codes which are relevant to it.
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i have 4 dropdownlist..state,district,place,product..where we have to select the product depend on state ,district ,place and product and there is search button for search particular product where iam using gridview to dipslay particular product deatails. i do not want to do auto past back eventfor page when i select dropdownlist...i tried using ajax but still i cant get through..i tried this code. how to use ajax for 4 dropdownlist & 1 button so that i can dispaly product deatails.
View 3 RepliesI want to stop postback if a certain value from a ddl is selected.
I've used VB to create a page whereby if a certain value from a ddl is selected then a hidden panel becomes visible. The problem is the likely answer to a majority of my ddl's is 'No' (or a no type response), however, even though the panel visibility remains false upon selecting No a postback still occurrs, the page refreshes and moves back to the top. I suppose this is a question with 2 possible solutions (or 2 questions rather)
1: Is there anyway of setting postback to false if selected value = No? A typical example of how my code appears is below
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(i've used the value '1' to represenet Yes)
2: Is there a way of setting the page position after postback? As you can see in my code above i've set the focus on the next control (being a Radio Button) but i mean, is there an actual way of defining where the scroll bar is set?
I have 3 Cascading dropdowns in a user control. After making a selection i want to clear the values of the selections or make it to select some values that I pass in. The ownCategoryValues does not get reset and everytime the service gets called the knowncategory values is the same.At what point should the knowncategoryvalues be changed to reset the dropdowns
View 1 RepliesI'm using the same thing on different page and it works fine in there, but on this specific page, this is not working.
Here's what I have:
<asp:UpdatePanel ID="upMain" runat="server" UpdateMode="Conditional" Visible="true" RenderMode="Inline">
<ContentTemplate>
<asp:DropDownList ID="ddlNewService_PortTelco" runat="server" Width="250" CssClass="dropdown" AutoPostBack="true" OnSelectedIndexChanged="Provision_PortedTelcoChanged"></asp:DropDownList>
</ContentTemplate>
</asp:UpdatePanel>
On the way before the DropDown there is one DIV (html one), and then few asp:Panels.
I have 2 dropdowns on my form, ddlMake & ddlModel. I want that ddlModel should have the corresponding value for which I have clicked the ddlMake dropdown, something like the cascading dropdown.
Here's my code :
[code]......
Now i need adding cusome values in dropdown. meantime. I had dropdown named like biodata, its consists of age, gender,sex, religion. Now i need add item name custom in Dropdown for users chooses its from dropdown another pop-up will appear, and it had some items in form and they filled it up thier details respectively. and click ok then The selected values are returned to grid.
View 2 RepliesI created my page with asp dropdown. On selected index changed I am seeing postback operation on dropdown. I couldn't avoid postback operation of asp dropdown with updatepanel also.
IS there a another way to avoid dropdownpostback operation.
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</contenttemplate>
</asp:updatepanel>
the code for getting the dropdown selected values (both TextField and ValueField) in MVC Controller class.
This is my case, I have a dropdown filled with Product category. Its having default value as "--Select--". I want validate this dropdown selected any values or not in controller action method. How will i do this stuff?
The DDL values are fully visible in Firefox but not in IE.
<img border="0" src="http://i212.photobucket.com/albums/cc241/coolcupidjny/DDIEbug.jpg" alt="IE" width="304" height="228" />
<img border="0" src="http://i212.photobucket.com/albums/cc241/coolcupidjny/DDFFbug.jpg" alt="IE" width="304" height="228" />
I've spent a lot of time trying to figure out how to do a drop down for filters. Right now I have two filters as a textbox but I want a dropdown list instead as I would be adding few more filters. This is my index page:
Task List
<ul>
<% using (Html.BeginForm("Index", "Task"))
{%>
<fieldset>
<legend>Filters</legend> [code].....
This is the change I made in my Model:
public class FilterViewModel
{
public PapClientProfile Client { get; set; }
public PapStaff Physician { get; set; }
[code]...
But I'm not able to populate any dropdown values.
I have 3 drop down list boxes - One for month, day and year. I'm trying to get the value of what the user selects on those drop down list boxes. I have dynamically populated my drop down list boxes and I'm trying to output the end value on a label
private int month;
private int day;
private int year;
protected void Page_Load(object sender, EventArgs e)
{
for (month = 0; month <= 12; month++)
{
DropDownList2.Items.Add(month.ToString());
}
for (day = 0; day <= 31; day++)
{
DropDownList3.Items.Add(day.ToString());
}
for (year = DateTime.Now.Year; year <= DateTime.Now.Year + 75; year++)
{
DropDownList4.Items.Add(year.ToString());
}
}
protected void Button4_Click(object sender, EventArgs e)
{
month = ?
day = ?
year = ?
Label7.Text = month + "/" + day + "/" + year;
The problem right now is I can't figure out how to actually retrieve the value the user uses
I want to add the below values from Enum to drop down list
<option value="0">-- Select --</option>
<option value="AC">Active</option>
<option value="IN">InActive</option>
<option value="PC">Pending Closure</option>
I have started learning ASP.NET. I am Trying to filter GRIDVIEW values on basis of dropdown selection.I am working trying to do this with AJAX.
When a user selects any value from the drop down..suppose an employe ID.the gridview is filled with data according to that empID.
how Can I do that.
Is it possible for entering values into dropdown and saving that values to DB?
View 2 Repliessorry for the naive question, but it looks it should work and it does not. Say I have this simple scenario: a controller with its view with a single action, Index. The view has a form with a dropdown with some letters and submit button. When the form is submitted (to the same Index action of the same controller) the controller should fetch from a repository all the persons whose last name begins with the selected letter and pass it back to the view. So my controller is like this (I'm using the MVC Contrib data grid):
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The view form (a strongly typed view whose model is an IEnumerable of Person EF objects) looks like this:
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This works the 1st time I submit the form, but whenever I click the next/previous button of the pager the Index action is invoked but I cannot read the dropdown selection: I tried with Request.Form and with a different signature in the action (by adding it a string LastName parameter), but I always get NULL instead of the selected value, so that the query returns no persons. What I'm doing wrong? How can I read the dropdown value across posts to the same action?
I have a ASP:DropDown list which is populated by the following:
public void Fill1()
{
string connectionString = WebConfigurationManager.ConnectionStrings["CRM2Sage"].ConnectionString;
using (SqlConnection _con = new SqlConnection(connectionString))
using (SqlCommand cmd = new SqlCommand("SELECT * FROM Products", _con))
{
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