protected void btnSelectSystem_OnClick(object sender, EventArgs e)
{
if (ddlSystem.SelectedIndex == 0)
{
ClientScript.RegisterStartupScript(this.GetType(), "alert", "alert('Por favor, selecione um sistema')", true);
}
else
{
short system_id = Convert.ToInt16(ddlSystem.SelectedValue);
ddlSystem.Enabled = btnSelectSystem.Visible = false;
mvCharacterSheets.Visible = btnDeselectSystem.Visible = true;
mvCharacterSheets.ActiveViewIndex = system_id;
AttributeService attributeService = new AttributeService();
gvAttributes.DataSource = attributeService.GetBySystemId(system_id);
gvAttributes.DataBind();
}
}