.NET Event Handler Definition

DropDownList

DropDownList1_Init(object sender, EventArgs e)

• Use this method to initialise the items in the drop down list

DropDownList1_SelectedIndexChanged(object sender, EventArgs e)

• DropDownList1.SelectedValue to get selected value

RadioButtonList

RadioButtonList1_DataBound(object sender, EventArgs e)

• Use this method to set "selected" property of radio button list items.

Button

Button1_Click(object sender, EventArgs e)

GridView

GridView1_RowDataBound(object sender, GridViewRowEventArgs e)

• e.Row to get the row that is being bounded by data
• e.Row.Cells to get the collection of cells inside the row
• Note that the content has not been rendered, so use "FindControl"

GridView1_SelectedIndexChanged(object sender, EventArgs e)

• GridView1.SelectedValue to get the selected value.

GridView1_RowUpdating(object sender, EventArgs e)

• This method is called when grid view row is updated (useful to set the UpdateParameter values)

CustomValidator

CustomValidator1_ServerValidate(Object source, ServerValidateEventArgs e)

• Use this method to validate form and set appropriate control properties (e.g. Visibility)