title: How to align this asp.net Button with other controls in the form using Bootstrap?
body: <p>I am trying to update the style of my ASP.NET Web Forms solution by using the latest version of Bootstrap. I am currently struggling in aligning an ASP.NET Button control with the other controls in a horizontal form as shown in the following snapshot:
  <a href="https://i.stack.imgur.com/IVRKo.png" rel="nofollow noreferrer"><img src="https://i.stack.imgur.com/IVRKo.png" alt="enter image description here"></a></p>
  
  <p>Here's the markup of the form:</p>
  
  <pre><code>    &lt;div class="col-lg-12 mb-4"&gt;
              &lt;div class="form-row mt-4"&gt;
                  &lt;div class="col-sm-5 pb-3"&gt;
                      &lt;label&gt;County&lt;/label&gt;
                      &lt;asp:DropDownList ID="ddlCounty" runat="server"
                          DataSourceID="odsCounty" AppendDataBoundItems="true"
                          DataTextField="Title" DataValueField="Id" CssClass="form-control"&gt;
                          &lt;asp:ListItem Value=""&gt;-- Select --&lt;/asp:ListItem&gt;
                      &lt;/asp:DropDownList&gt;
                      &lt;asp:ObjectDataSource ID="odsCounty" runat="server"
                          TypeName="CAS.Business.ContractorBL"
                          DataObjectTypeName="CAS.Data.Models.TCAS_Contractor"
                          SelectMethod="GetContractors"&gt;&lt;/asp:ObjectDataSource&gt;
                  &lt;/div&gt;
  
                  &lt;div class="col-sm-4 pb-3"&gt;
                      &lt;label&gt;Request Number&lt;/label&gt;
                      &lt;asp:TextBox ID="txtRequestNum" runat="server" EnableViewState="true" ViewStateMode="Enabled"
                          CssClass="form-control"&gt;&lt;/asp:TextBox&gt;
                  &lt;/div&gt;
  
                  &lt;div class="col-sm-3 pb-3"&gt;
                      &lt;label&gt;&lt;/label&gt;
                      &lt;div class="form-group"&gt;
                          &lt;asp:LinkButton ID="lbtnFilter" runat="server" OnClick="lbtnFilter_Click"
                              CssClass="btn btn-primary"&gt; 
                          &lt;i class="fa fa-filter fa-fw" aria-hidden="true"&gt;&lt;/i&gt;Filter
                          &lt;/asp:LinkButton&gt;
                      &lt;/div&gt;
                  &lt;/div&gt;
              &lt;/div&gt;
      &lt;/div&gt;
  </code></pre>
  
  <p><strong>How can I resolve this issue?</strong></p>