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How to add empty list in dropdownlist in C#.NET

How to add empty list in dropdownlist in C#.NET

Manikandan Chandran

14y3.4kLearn iOS Programming

Hi friends,
Please update me that,
How to add empty list in dropdownlist in C#.NET, when I fill that combo from data reader.

Thanks,

3 Replies

Know the answer? Post it — somebody with the same question will find it here.

MuthuMari M14y ago
Accepted answer
Hi,
```
<asp:DropDownList ID="Whatever" runat="server" AppendDataBoundItems="True">
    <asp:ListItem Value="" Text="Select one..." />
asp:DropDownList>
```
the use of AppendDataBoundItems="True"
And then when you bind, the bound items are put after the empty item rather than replacing it.
Pls refer this url
http://stackoverflow.com/questions/679128/add-empty-item-to-dropdownlist-of-custom-objects-in-c-sharp

Thanks!
0
Manikandan Chandran14y ago
Thank you both of you.
0
Senthilkumar14y ago
Hi,

Place the drop down control in your design page.

You no need to add any thing. But if you want to add the default text then
ListItem lstitem = new ListItem();
lstitem.Text = "Select a Item";
lstitem.Value = "0";
ddlCity.Items.Insert(0, lstitem);

When click on some thing or based on the other event, if you want to load the data into the drop down list then

SqlCommand sqlCommand = new SqlCommand();
sqlCommand.CommandType = CommandType.StoredProcedure;
sqlCommand.CommandText = "proc_Retrievecities";
SqlDataReader sreader = sqlCommand.ExecuteReader();
ListItem listItem = null;

if (sreader != null)
{
while (sreader.Read())
{
string city = sreader["Name"].ToString();
int id = Convert.ToInt32(sreader["ID"].ToString());

listItem = new ListItem();
listItem.Text = city;
listItem.Value = id;
ddlCity.Items.Add(listItem);
}
}

Hope this help you.
0