How do I Filter SqlDataSource

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I have two combo box named as
1) cmbCountryId
2) cmbStateId

I bind this two combo box with SQLDataSource

For Country Combo Box

<asp:SqlDataSource ID="DS_Country" runat="server" ConnectionString="Data Source=.;Initial Catalog=Db_ESmart;Integrated Security=True"
            ProviderName="System.Data.SqlClient" SelectCommand="SELECT [CountryMasterId], [CountryName] FROM [CountryMaster] where IsDeleted=1 and IsActive=1">
        </asp:SqlDataSource>

For State Combo Box

<asp:SqlDataSource ID="DS_State" runat="server" ConnectionString="Data Source=.;Initial Catalog=Db_ESmart;Integrated Security=True"
            ProviderName="System.Data.SqlClient" SelectCommand="SELECT [StateMasterId], [CountryMasterId], [StateName] FROM [StateMaster] WHERE ([CountryMasterId] = @CountryMasterId)">
            
        </asp:SqlDataSource>

i want to filter StateDataSource with cmbCountryId Combo box value.

I did something like this... but not working

<SelectParameters>
                <asp:FormParameter FormField="cmbCountryId" Name="CountryMasterId"
                    Type="Int32" />
            </SelectParameters>

plzz help me

Posted 1-Jan-16 1:16am

Nilesh Dalvi

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Manas_Kumar · Accepted Answer · 2016-01-01T04:35:00

Try with below code:

ASP.NET

<asp:DropDownList ID="DropDownListCountry" runat="server"
    Height="27px" Width="107px" DataSourceID="DS_Country"
    DataTextField="CountryName" DataValueField="CountryMasterId" AutoPostBack="True">
</asp:DropDownList>

<asp:SqlDataSource ID="DS_Country" runat="server" ConnectionString="Data Source=.;Initial Catalog=Db_ESmart;Integrated Security=True"
	ProviderName="System.Data.SqlClient" SelectCommand="SELECT [CountryMasterId], [CountryName] FROM [CountryMaster] where IsDeleted=1 and IsActive=1">
</asp:SqlDataSource>
	
<asp:DropDownList ID="DropDownListState" runat="server"
    Height="20px" Width="110px"
    DataSourceID="DS_State" DataTextField="StateName" DataValueField="StateMasterId">
</asp:DropDownList>

<asp:SqlDataSource ID="DS_State" runat="server" ConnectionString="Data Source=.;Initial Catalog=Db_ESmart;Integrated Security=True"
ProviderName="System.Data.SqlClient" SelectCommand="SELECT [StateMasterId], [CountryMasterId], [StateName] FROM [StateMaster] 
WHERE ([CountryMasterId] = @CountryMasterId)">
    <SelectParameters>
        <asp:ControlParameter ControlID="DS_Country" PropertyName="SelectedValue"
            Name="CountryMasterId " Type="String" DefaultValue="2" />
    </SelectParameters>
</asp:SqlDataSource>

Here it used default value as "2" for parameter. You need to change as per your requirement.