Small things make me happy

    Today as I was coding, I was writing a regular "if-else" and decided to look at msdn for something different.


So, I found this cool way of writing simple "if-else"


  string[] coding = getVal.Text.Split(getVal.Text.Contains("-") ? '-' : ' ');

 Very elegant and very simple to understand. I love it !! 

Creating subheader in gridview

<asp:gridview id="GridView1"    class="attr"> runat="server" autogeneratecolumns=        class="attrv">"false" datasourceid="SqlDataSource1"
 onrowdatabound="GridView1_RowDataBound">
 <columns>
  <asp:boundfield datafield=            class="attrv">"ProductID" headertext="ProductID" />
  <asp:boundfield datafield=            class="attrv">"Name" headertext="Name" />
  <asp:boundfield datafield=            class="attrv">"Subcategory" headertext="Subcategory" />
 </columns>
</asp:gridview>
<asp:sqldatasource id=    class="attrv">"SqlDataSource1" runat="server"        class="attr"> connectionstring="<%$
            ConnectionStrings:AdventureWorksConnectionString %>"
 selectcommand="SELECT P.*, PS.[Name]
    AS [Subcategory] FROM [Production].[Product] AS P INNER JOIN [Production].[ProductSubcategory]
    AS PS ON PS.[ProductSubcategoryID] = P.[ProductSubcategoryID] ORDER BY P.[ReorderPoint],
    P.[Name]">
</asp:sqldatasource>

CODE-BEHIND 

private string m_subcategory = String.Empty;

protected void GridView1_RowDataBound(object sender, GridViewRowEventArgs e)
{
 GridViewRow gvr = e.Row;

 switch (gvr.RowType)
 {
  case DataControlRowType.DataRow:
  {
   DataRowView drv = gvr.DataItem as DataRowView;

   string subcategory = drv["subcategory"].ToString();

   if (!subcategory.Equals(m_subcategory))
   {
    GridViewRow row = new GridViewRow(0, 0, DataControlRowType.DataRow, DataControlRowState.Normal);
    TableCell cell = new TableCell();
    cell.BackColor = Color.Red;
    cell.ForeColor = Color.White;
    cell.ColumnSpan = GridView1.Columns.Count;
    cell.HorizontalAlign = HorizontalAlign.Center;
    cell.Text = subcategory;
    row.Cells.Add(cell);

    GridView1.Controls[0].Controls.AddAt(GridView1.Controls[0].Controls.Count - 1, row);

    m_subcategory = subcategory;
   }


   break;
  }
 }
}

How do I cast a string to an int, float, double, etc?

How do I cast a string to an int, float, double, etc?

You can use the Convert class or the Parse method of the built-in type you are casting to. i.e.

string myStr = "123";
int myParsedInt = Int32.Parse(myStr);
int myConvertedInt = Convert.ToInt32(myStr);

This example uses the int type, but you can also use the same techniques for any of the other integral or floating point types.