Work with selected value in dropdownlist

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Been trying to test a drop down list according to selected value.The else part does work since the code inside is executed, and I am 102% sure that the condition is met, I have that name in my dropdown.Its confusing,i need help.

XML

<asp:DropDownList ID="ddlStaff"  runat="server" AutoPostBack="true"
                 BackColor="#CCCCCC" ForeColor="Black"  Height="18px" Width="167px"
                    onselectedindexchanged="ddlStaff_SelectedIndexChanged">
             </asp:DropDownList>

Below is the code behind the drop down

C#

if (ddlStaff.SelectedIndex.ToString() == "Anele ngqandu")
       {
           MessageBox.Show("ys");
       }
       else
       {
           radDoctors.Checked = true;
       }

Posted 16-Jun-11 0:22am

Anele Ngqandu

Updated 16-Jun-11 1:49am

CPallini

v2

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Comments

karan joshua 16-Jun-11 6:33am

yeah . selected index doesn't work sometime when page_load occurs.

the best way to do is add one more button at the DDl and try to handle the selecte d item of the combo box.

RakeshMeena 16-Jun-11 6:41am

Yes, but SelectedIndex will always give you an integer value (index of the selected item) not a string (value/text) as Anele is trying to use.

4 solutions

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RakeshMeena · Answer 1 · 2011-06-16T00:24:00

Solution 1

You are using SelectedIndex, it should be either SelectedItem.Text or SelectedItem.Value (whichever is applicable).

Posted 16-Jun-11 0:24am

RakeshMeena

Updated 16-Jun-11 0:26am

v2

Comments

Anele Ngqandu 16-Jun-11 6:27am

I have tried that and still its not workn,The weird thing when i took that code and used it as a code behind a button, it works.Y is that?

RakeshMeena 16-Jun-11 6:39am

So as of now where you are putting this code? I mean which event handler/method? one more thing, are you binding your DDl on each request?

Anele Ngqandu 16-Jun-11 6:49am

the code is ruuning at the back of my button and no binding i did its pure code

RakeshMeena 16-Jun-11 6:52am

Can you post your markup and code-behind.

Anele Ngqandu 16-Jun-11 6:55am

<asp:Button ID="btnAddStaff" runat="server" Text="..." Height="24px"
Width="64px" onclick="btnAddStaff_Click" />

protected void btnAddStaff_Click(object sender, EventArgs e)
{
if (ddlStaff.SelectedItem.Text == "Anele ngqandu")
{
MessageBox.Show("ys");
}
else
{
MessageBox.Show("no");
}
}

There u go Sir

RakeshMeena 16-Jun-11 7:01am

Is this all? Where is the rest of the markup & code-behind? And when you say "no binding" do you mean that items are added statically(in the markup)? I believe you have something very basic screwed up in your code....

Anele Ngqandu 16-Jun-11 6:59am

Method to populate the dropdownlist

public void populateDDLStaff()
{
ArrayList staffList = new ArrayList();
systemBusinessLayer = new BusinessLayer();

staffList = systemBusinessLayer.ddlAvailableStaffPerDay(DatePicker.SelectedDate.ToShortDateString());
ddlStaff.DataSource = staffList;
ddlStaff.DataBind();
}

Method in mu bussiness layer to get the names from my database

public ArrayList ddlAvailableStaffPerDay(string date)
{
using (SqlConnection con = new SqlConnection(ConnString))
{
SqlCommand cmd = new SqlCommand("procGetEmployeesForSpecificDay", con);
cmd.CommandType = CommandType.StoredProcedure;
cmd.Parameters.Add(new SqlParameter("@Date", SqlDbType.NVarChar));
cmd.Parameters["@Date"].Value = date;
con.Open();
SqlDataReader reader = cmd.ExecuteReader();

ArrayList myList = new ArrayList();
myList.Add("Select Employee");
while (reader.Read())
{

myList.Add(reader["FullName"].ToString());
}
reader.Close();

return myList;
}
}

guptaadeepak · Answer 2 · 2011-06-16T00:34:00

Solution 2

hello friend

MIDL

Lable1.Text = DropDownList1.SelectedValue.ToString();
if( label1.text == "selected value of DDBL")
{
       respose.write("done");
}

try this code its help u.

Posted 16-Jun-11 0:34am

guptaadeepak

Comments

RakeshMeena 16-Jun-11 6:43am

Why are you taking the value in a label then using it do the comparison. I mean how does it help apart from the fact that you are using SelectedValue not SelectedIndex.

Anele Ngqandu 16-Jun-11 6:51am

True Rakesh but also the SelectedValue and SelectedIndex is not working.This is strange guys...

mahabubur rahman · Answer 3 · 2011-06-16T00:47:00

Solution 3

you may use DropDownList1.SelectedItem.Text or DropDownList1.SelectedValue for example

C#

if (ddlStaff.SelectedItem.Text == "Anele ngqandu")
       {
           MessageBox.Show("ys");
       }
       else
       {
           radDoctors.Checked = true;
       }

Posted 16-Jun-11 0:47am

mahabubur rahman

amit28august · Answer 4 · 2011-06-16T01:29:00

Solution 4

First you have to check the loading in not inside the postback event then you have to to for ur selectedindexchange event,means that u should not load it on its postback event.

if (ddlStaff.SelectedItem.Text.Tostring() == "Anele ngqandu"")
{
MessageBox.Show("ys");
}
else
{
radDoctors.Checked = true;
}

Posted 16-Jun-11 1:29am

amit28august

Comments

Anele Ngqandu 16-Jun-11 10:59am

but the dropdown is loaded on postback sir

amit28august 17-Jun-11 0:21am

it has to load initially, then when u fire any other event, it should get reload, otherwise it will lost its current state, check it up, or u can send me ur whole page code