if(!IsPostBack){
//code here
}
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Etiqueta: null
Check if value from SqlDataReader is null
TextBox1.Text = reader.IsDBNull(1) == true ? “” : reader.GetDecimal(1).ToString();
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SQL make null
NULLIF(‘expression1′,’expression2’)
*if expression1 = expression2 return null
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Check if a string is null or empty
string.IsNullOrEmpty(variable);
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Clear GridView
GridView1.DataSource = null;
GridView1.DataBind();
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Kill session
- Session.Abandon();
- Session.Remove(“YourItem”);
- Session[“YourItem”] = null;
- Session.Clear();
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Replace null value from database
String variable = reader.IsDBNull(11) == true ? “” : reader.GetString(11);
