Resizing Image on fly in ASP.Net DataList

Hi

I want to resize image on fly in my Product Datalist. I am retrieving image from folder but it includes images with diffrent size. 

Some images looks clear but some pixelet. Please help me how to resolve this.

Datalist aspx code:

   <asp:DataList ID="ItemList"   runat="server"  RepeatColumns="4" 
                        BorderWidth="0px" BorderStyle="None" onitemcommand="ItemList_ItemCommand"  >
                            <ItemTemplate>
                                 
                                    <div class="sectionHolder">
                                      <div class="pinStick">
                                           <%-- <span style="font-size:45px;font-family:@Arial Unicode MS"><%# Eval("Product_Tittle")%></span>
                                            <%# Eval(" Product_OfferDetails")%>--%>
                                             <asp:ImageButton ID="ImageButton1"  CommandName="IMG" CommandArgument='<%# Eval("ProductID")%>'  Width="135px" Height="110px" runat="server" CausesValidation="false" 
                                               ImageUrl='<%# Bind("Product_Image", "~/ProductImages/{0}") %>' />
                                        </div>
                                        <asp:LinkButton ID="lnKFeProductName" CssClass="title" Text='<%# Eval("Product_Name")%>' CommandName="IMG" CommandArgument='<%# Eval("ProductID")%>'  runat="server"></asp:LinkButton>
                                        <div class="actionBar">
                                            <strike><span style="font-size:small; font-family:Gudea">Rs.<%# Eval("Product_CostPrice").ToString().Replace(".0000", "")%></span></strike>
                                            <span  style="font-size:small; font-family:Gudea">Rs.<%# Eval("Product_Price").ToString().Replace(".0000", "")%></span><br />
                                            <asp:LinkButton ID="lnkBuyNow" CssClass="myCard" ToolTip="Buy Now" CommandName="Buy" CommandArgument='<%# Eval("ProductID")%>'  runat="server"></asp:LinkButton>
                                            <asp:LinkButton ID="lnkPinIt" CssClass="pinIt" ToolTip="Pin IT" CommandName="Pin" CommandArgument='<%# Eval("ProductID")+ "|" + Eval("Product_Price")%>'  runat="server"></asp:LinkButton>
                                            <asp:LinkButton ID="lnkReview" CssClass="myreview" ToolTip="Review" CommandName="Review" CommandArgument='<%# Eval("ProductID")%>'  runat="server"></asp:LinkButton>
                                           <%-- <asp:LinkButton ID="lnkLike" CssClass="likeMe" ToolTip="Like Me" CommandName="Pin" CommandArgument='<%# Eval("ProductID")%>' runat="server"></asp:LinkButton>
                                            <span class="count">
                                        (9999)</span>--%>
                                        </div>
                                    </div>
                              
                            </ItemTemplate>
                            </asp:DataList>