using vb.net/asp.net 2005
I have 2 dropdownlists, dropdownList1 and dropdownlist2.
when the user changes index on dropdownlist1 I want dropdownlist2 to be enabled. How to do this?
I am doing this in an ajax enabled website, which means its inside the <asp:content> tag.
I want populate the dropdownlist1 with Country and dropdownlist2 with City of that Country from web
Is there a place on web where we can get a list of countries and cities handy, and then populate into our dropdownlists in ASP.net page.
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;
}
I have a Datagrid on ASP.NET web form which I have bound to a data source and set it to have 10 records per page. I also have a hyper link column on the Datagrid , such that a user can navigate to another page (details page) from the list. On the details page, they have "Cancle" button to return to the Datagrid pageI am looking for sample code snippet on the Server Side on how to specify the page index to set the Datagrid after data binding. The idea is to ensure the user navigates to the same page index they were on.
View 1 Repliesi have 2 drop down list on my web page
-the first one bound to a sqldatasource and it's work fine
-the second one bound to a sqldatasource (with a parameter depends on the first drop down list selected value )and it's work fine too .
But when a user make a selection on the second drop down list, any post back on the page will return the second drop down list selected index equal to 0.I tried so hard (ON MSDN) to understand why this happen only on this drop down list.
1) Accpet the item in TxtItem in comma seperated values like (Apple, Mango, Orange etc.). Store that item in array object (objArray) in acending order."
2) Create the object of the dropdown list objDropDwon on runtime and fill its items from objArray."
3) Create server side table and add rows on runtime."
4) Add objDropDown to the each row of the table."
5) Handle Selected index changed event. Display the current selected name on screen
Note: give me code guide how can done 1 to 5 step.
Im having an hidden field.whose value is set when selectedindex change of dropdown.but im not getting its value.Im getting it if i set it on page load.
View 2 RepliesI 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?
With asp.NET control dropdownlist, there is a property AutoPostBack, if it is set "True", the whole page will be posted back.
If the aspx page include a html element "select" like:
<select id="list" name="list" runat="server"
DataTextField="Name" DataValueField="ID" ></select>
and it data is filled by code-behind.
Question is: how to allow this Select have AutoPostBack function too?
As you can see in the picture below i've got a Page control with inital letters which cotains a listbox showing different wood articles. When i click on a Tab, the selected tab page get's a new Listbox control with the wood articels starting with the selected initial letter.
Creating the listbox:
[Code]....
[Code]....
When i click on a item inside the listbox, following code will be executed:
[Code]....
So far, it works fine for me. But when i change the selected Tabpage, the first SelectedIndexChanged in the listbox in the new shown tabpage is not recordnized. That means i have to select a new item and click on Search = the selected Item is still the item i selected before i changed the tab. Then i select the item again and click on search the index changed is recordnized. So why do i have to click two times on search to get the new selected item after a tab page changed?
Here is the full code:
Searchpanel:
[Code]....
The WC_WoodList
[Code]....
I am struggling with this.I have the drop down control(dropdownlist) in one page.I am calling selectindex changed event, because i have to fill the values in another dropdown list in the page based on the selected value in the dropdownlist1.But The Event is not fired Even setting the property autopostback=true and Enable view State=true(page level and control level).Another thing is if i put one button control on this page, while clicking the button, the dropdown select index changed Event is fired.i dont know what is happening. I dont think it is any code related IssueNote : if i copy this project in another system, the Select index changed Event is fired.Problem in my systems only..
<%@ Page Language="C#" AutoEventWireup="true" EnableViewState="true" CodeFile="Default.aspx.cs" Inherits="_Default" %>
<form id="form1" runat="server">
<div>
<asp:DropDownList ID="DropDownList1" runat="server" EnableViewState="true" AutoPostBack="True"
onselectedindexchanged="DropDownList1_SelectedIndexChanged">
<asp:ListItem Text="ddd" Value="1">
</asp:ListItem>
<asp:ListItem Text="ee" Value="2">
</asp:ListItem>
</asp:DropDownList>
</div>
</form>
Here the form code -
<div class="textmid2">Adviser Photo :</div><div class="textright">Adviser Sign :</div></div>
<div class="Row"><div class="view_img1">
<asp:ImageMap ID="imgADphoto" runat="server" Width="140px" Height="150px">
</asp:ImageMap> </div>
<div class="view_sign1">
<asp:ImageMap ID="imgADsign" runat="server" Width="200px" Height="70px">
</asp:ImageMap> </div>
Code Behind for form code -
//code behind//
protected void txtCID_OnTextChanged(object sender, EventArgs e) {
SqlConnection cnn = new SqlConnection();
cnn.ConnectionString = System.Configuration.ConfigurationManager.ConnectionStrings["constr"].ConnectionString;
cnn.Open();
[Code] .....
Based on the gridview row selected i need to populate some dropdownlist which change values based on selection.. And i am populating these dropdownlists at page load..
When i select a row in gridview I want the dropdownlist to show the values in the gridview row which i have selected.. I am doing it like this:
drpemployee.SelectedItem.Text=row.cell[1].Text;
But it throws null reference exception....
Im having a modalpopupextendar which consist of an dropdown.
On selected index change of dropdown i adding contrls dynamically in a panel in modalpopup.
But nothing is adding,
[Code]....
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.
View 1 RepliesI have a gridview with paging. I have a style set for a selected row (highlights the row in light orange). What i would like to do is that each time a user chamges the page, the selectedIndex & selectedRow automatically becomes the 1st row of the selected page. So i would like to see the orange highlight on the 1st row of the page to indicate that the row has been selected.
I have tried GridView1.SelectedIndex=0 but this only seems to select the index of the 1st record in the whole datagrid. Does anyone know of how to set the 1st row of the page to the selected row each time the pageindex is changed?
I have a weborm where my aspx page has the structure
[Code]....
In my code, I create a drop down list and add it to panel p1
[Code]....
When I change the index of this drop down list, the post back happens, but MyDDL_IndexChanged is never called.
I did my drop down list that get it,s values from database and when run the application it did not work and compiler did not see the code
// aspx
<asp:UpdatePanel ID="UpdatePanel3" runat="server">
<ContentTemplate>
<asp:DropDownList ID="DDlProductFamily" runat="server"
ondatabound="DDlProductFamily_DataBound"
onselectedindexchanged="DDlProductFamily_SelectedIndexChanged">
</asp:DropDownList>
</ContentTemplate>
<Triggers>
<asp:AsyncPostBackTrigger ControlID="DDlProductFamily" EventName="SelectedIndexChanged" />
</Triggers>
</asp:UpdatePanel>
// cs
protected void DDlProductFamily_SelectedIndexChanged(object sender, EventArgs e)
{
using (SqlConnection Con = Connection.GetConnection())
{
SqlCommand Com = new SqlCommand("SelectThumbByProductFamily", Con);
Com.CommandType = CommandType.StoredProcedure;
Com.Parameters.Add(Parameter.NewInt("@ProductCategory_Id",
DDlProductFamily.SelectedValue.ToString()));
SqlDataAdapter DA = new SqlDataAdapter(Com);
DA.Fill(dt);
DataList1.DataSource = dt;
DataList1.DataBind();
}
}
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
View 7 RepliesI 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.
In my web application I need to Search a gridview by a Text which entered in a textbox, and in a Button_Click().
I need to search the Text in a particular column only, so I use the gridviewrow property and searched which item template contains the Text. But, it works in the First page index of the GridView not in the Next and others, How can I Enable the Search Up-to the Last page index and the Last row of the GridView.
[Code]....
how to handle selected index changed event for dropdown list in footer template in grid view
View 2 RepliesWe are developing our application on a 64 bit server. We are using a dropdownlist to filter and display departments in a htmltable(hide and show rows) on every selectedindexchanged event.
The issue is it is firing properly for the first time, but it is not doing a post back there after. We have even given autopostback=true. We are using AJAX for hiding and showing the rows of the htmltable.
I have a radio buttonlist in my webpage with 2 list items, when I click the 2nd list item I want to change the visibility of a text box so it wore the code
protected void rbList_SelectedIndexChanged(object sender, EventArgs e)
{
if (rbList.SelectedIndex == 0)
{
txtPresentlyUsing.Visible = false;
}
if (rbList.SelectedIndex == 1)
{
txtPresentlyUsing.Visible = true;
}
}
and its working fine but the page got refreshed how can I avoid this if I want to use ajax how can I implement it?
I have a gridview where I am opening a popup page when user selects a row. If I am not using update panel then Select button is able to open popup page.
If I am adding Update panel, the popup page is unable to open. What could be the cause?
[Code]....