Some questions about gridview

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ASP.NET

Hey,

I built a table from the database and I have some questions -
1. How can I make that in the row of the name, whoever clicks on the name will reach the customer's page?
2. I made that only those whose value is 1000 will appear in the list (<asp: parameter="" defaultvalue="1000" name="CustomerCompany" type="Int32">) How can I change the value in the code behind?
3. I have a line of date - how can I display only the day, month and year (without the hours and minutes?)

Best regards

What I have tried:

<asp:GridView runat="server" ID="grdContact" AutoGenerateColumns="False" DataKeyNames="IdCustomer" DataSourceID="SqlDataSource1">
    <Columns>
        <asp:BoundField DataField="CustomerName" ControlStyle-CssClass="td1 th1" HeaderText="name" SortExpression="CustomerName" />
        <asp:BoundField DataField="CustomerPhone" ControlStyle-CssClass="td1 th1" HeaderText="phone" SortExpression="CustomerPhone" />
        <asp:BoundField DataField="CustomerAdress" ControlStyle-CssClass="td1 th1" HeaderText="adress" SortExpression="CustomerAdress" />
        <asp:BoundField DataField="CustomerMail" ControlStyle-CssClass="td1 th1" HeaderText="mail" SortExpression="CustomerMail" />
        <asp:BoundField DataField="CustomerBirthDay" ControlStyle-CssClass="td1 th1" HeaderText="birthday" SortExpression="CustomerBirthDay" />
    </Columns>
</asp:GridView>

<asp:SqlDataSource ID="SqlDataSource1" runat="server" ConnectionString="Data Source=(LocalDB)\MSSQLLocalDB;AttachDbFilename=C:\Users\ADMIN\source\repos\TOPjob\DalTJ\App_Data\Database.mdf;Integrated Security=True;MultipleActiveResultSets=True;Application Name=EntityFramework" ProviderName="System.Data.SqlClient" SelectCommand="SELECT * FROM [Customers] WHERE ([CustomerCompany] = @CustomerCompany)">
    <SelectParameters>
        <asp:Parameter DefaultValue="1000" Name="CustomerCompany" Type="Int32" />
    </SelectParameters>
</asp:SqlDataSource>