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Select one dropdown value bind the values to combo box and select another dropdown value bind the values to same combo box but previous values are no changes ....?
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thatraja 6-Nov-13 4:22am    
Confusing little bit. Rephrase you question. Explain the issue clearly.
member 8888995 6-Nov-13 5:02am    
Create a list as source for ComboBox.
Add Values in list on selection from dropdown.
set it as a source for ComboBox.
Again select from dropdown and add values to list
set it as a source for ComboBox.
Not clear. Explain again.

try this:

aspx page:


XML
<form id="form1" runat="server">
<div>
    <asp:DropDownList ID="DropDownList1" runat="server" AutoPostBack="True"
        onselectedindexchanged="DropDownList1_SelectedIndexChanged">
        <asp:ListItem>Akil</asp:ListItem>
        <asp:ListItem>Arun</asp:ListItem>
        <asp:ListItem>Balu</asp:ListItem>
        <asp:ListItem></asp:ListItem>
    </asp:DropDownList>
    <br />
    <br />
    <br />
    <asp:ComboBox ID="ComboBox1" runat="server" >

    </asp:ComboBox>
</div>
</form>



aspx.cs:


C#
int i = 0;
    protected void Page_Load(object sender, EventArgs e)
    {

    }
    protected void DropDownList1_SelectedIndexChanged(object sender, EventArgs e)
    {
        ComboBox1.Items.Insert(i,DropDownList1.SelectedItem.Text);
        i++;
    }
 
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Before binding values just write the following

C#
DropDownList1.Clear();


and then again bind the values. It will work.
 
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